Intelligent Battery Family Product GuidePart

Description

Cell(s)Package(s) Available

Page(Lead-free)No.

NumberBattery Management Units (BMUs) (with cell balance)
OZ7706A

High Performance, Low-cost BMU

4-6 Cells

24 QFN

3

OZ7708High Performance, Low-cost BMU

5-8 Cells

24 QFN, 24 SSOP

4

OZ7710High Performance, Low-cost BMU

5-10 Cells

24 SSOP, 28 QFN

5OZ7714High Performance, Low-cost BMU

7-14 Cells

24 SSOP24, 28 QFN

73-10 Cells

40 QFN, 48 QFN, 48 VQFN

9

3-6 Cells

40 QFN, 40 VQFN

10

4-10 Cells

48 QFN

11

Battery Management Units (BMUs) (with ARM Cortex M0 Microcontroller)
OZ93510High-Integrated, High Performance Battery
Management System

OZ93506

High-Integrated, High Performance Battery
Management System

Battery Management Units (BMUs) (with 8-bit Microcontroller)
OZ93110High-Integrated, Low-cost Battery Management
SystemBattery Management Units(BMUs) (without cell balance)
OZ8955

Low-Cost Li-Ion BMU

3-5 Cells

16 SOP, SSOP

13

OZ8957

Low-Cost Li-Ion BMU (stackable)

4-7 Cells

24 SSOP14

OZ7703/4/5

Low-Cost BMU

3-5 Cells

16 SOP, 16 SSOP

15

OZ77205

Low-Cost BMU

3-5 Cells

16 SOP, 16 SSOP

16

OZ8975

Low-Cost BMU

3-5 Cells

14 SOP, 16 QFN,16 SSOP

17

OZ8978

Low-Cost BMU

5-8 Cells

16 QFN, 16 SSOP

18

OZ89710

Low-Cost BMU

5-10 Cells

20 QFN19

OZ89725

Low-Cost BMU

3-5 Cells

14 SOP, 16 QFN,16 SSOP

20

Cell Monitors (secondary protection)
OZ26305

Low Cost Secondary Protection (stackable)

3-5 Cells

12 DFN, 14 SOP

21

OZ2605

Low Cost Secondary Protection (stackable)

1-5 Cells

8 DFN

22

OZ2608Low Cost Secondary Protection (stackable)

5-8 Cells

14 DFN, 16 SSOP

23

OZ2610

Low Cost Secondary Protection (stackable)

5-10 Cells

16 QFN, 16 ESOP

24

Analog Front End (AFE) and Digital Front End (DFE)OZ3705

DFE with Cell Balance and I2C

3-5 Cells

16 QFN, SSOP

25

OZ9358

AFE with Cell Balance and I2C

3-8 Cells

20 QFN26

OZ3710

DFE with Cell Balance and I2C

5-10 Cells

24 QFN, 24 SSOP

27

OZ3714

DFE with Cell Balance, Low side Driver and I2C

7-14 Cells

32 QFN, 30 SSOP

28

2

OZ37210

DFE with Cell Balance, Low side Driver and I C

5-10 Cells

28 QFN, 28 SSOP

30

OZ37220

DFE with Cell Balance, Low side Driver and I2C

10-20 Cells

40 QFN, 48 LQFP

32

5-10 Cells

40 VQFN34

OZ37210DW

1

2

DFE with Cell Balance, High side Driver and I C

OZ7717

DFE with Cell Balance, High side Driver and SPI

10-17 Cells

48 LQFP36

OZ3717

DFE with Cell Balance, High side Driver and SPI

10-17 Cells

48 LQFP

38

Power Management IC (PMIC)OZ9212

Low Dropout Regulator (LDO)

8 ESOP, 8 EMSOP40

OZ9211Q

Low Dropout Regulator (LDO)

8 ESOP, 8 EMSOP

41

Protection FET Drivers
OZ9202

Dual High Side NFET Drivers

16 SSOP

42

OZ9222

Dual High Side NFET Drivers with SC protection

16 SSOP43

QFN32_5*5, QFN24_4*444

QFN48_6*6, QFN40_5*5

45

Buck-Boost converter
OZ85211/12

65W Buck-Boost Converter for USB Power Delivery

PD + Buck-Boost converter
OZ85412/13

2

65W USB PD Based Buck-Boost Converter

OZ7706A
FEATURES
 Voltage Protection: High Accuracy

OV: 3.3V to 4.575V, 5mV/step ; UV:1.9V to 3.175V, 5mV/step Dual - Discharge Current Channels
 Discharge Current Protection: 3-level, 2-channel












➢ DOC1: 10 mV to 168.75mV, 1.25mV/step；DOC2: 60mV to 260mV, 13.3mV/step➢ SC: VSC = 1.5X VDOC2
Charge Current Protection 5 mV to 68.5mV, 0.5mV/step
Temperature Protection: COT/DOT/CUT/DUT
Dedicated 3.3V LDO for external micro-controller
Simultaneous Multi - Cell BalanceeLock and PWM control input
End-of-Charge (EOC) function (optional)
Cell-Tap-Open (CTO) Detection (optional)
I2C Interface and ALERT Output to Optional External Host
Low Power Consumption Active: <60uA (Typ) ; Sleep: < 4uA (Typ) Shutdown: < 2.5uA (Typ)GENERAL DESCRIPTIONOZ7706A is a highly integrated, low cost Battery Pack Management IC for 4~6s Li-Ion/Polymer battery
packs used in E-scooters, power tools, garden tools, home appliances and other applications. OZ7706A
may operate standalone or host mode. A dedicated 3.3V LDO is for external host. It integrates an ADC tomeasure cell voltages, temperature, charge/discharge current and a safety engine which performs highaccuracy and high reliable protection for the following safety events: OV, UV, COC, DOC (DOC1 andDOC2), SC, COT, DOT, CUT (Optional) and DUT (Optional).
OZ7706A provides two independent discharge current channels. The safety engine uses digital thresholdvalues to compare with ADC digital outputs to detect DOC1 and COC. This enables high-accuracy current
sense with the use of small current sense resistors (e.g. 2.5 mΩ) to reduce power dissipation and heat.
OZ7706A uses one dedicated fast comparator for DOC2 detection and another for SC detection for eachdischarge channel. Each discharge channel has independent thresholds.

APPLICATION DIAGRAM• E-scooter• Vacuum Cleaner or other Home Appliance• Garden Tool, Power Tool, Energy Storage

PACK+

10K

10K

VMCU

10K

APPLICATIONS

51
VCC

CHG

BAT6

V33

2u

51

2.2uF
V5

NC

ALTN

GPIO2
VSS

2.2uF

OZ7706A

51

System/UPS

ELOCK/SDA

BAT4

0.1u

MOD/SCL

BAT3

0.1u

51

GNDD

BAT5

0.1u

51
51

EFETC

BAT2
0.1u

2K
BAT1

VM

GNDA

DSG_S

ISN_M

DSG_M

ISN_S

TS

22nF

100K

1K

100K

2M

MDSG1

15V

0

10M

100K NTC

2M

51

MCU

SCL

0.1u
NC

VCC
GPIO1
SDA

VMCU

RS-M

0

PACK-M

1K

RS-S

15V

10M

Homepage
3

1M

MCHG

CHGMDSG2

PACK-SOZ7708
FEATURES
 Voltage Protection: High Accuracy

OV: 3.3V to 4.575V, 5mV/step ; UV:1.9V to 3.175V, 5mV/step Dual - Discharge Current Channels
 Discharge Current Protection: 3-level, 2-channel












➢ DOC1: 10 mV to 168.75mV, 1.25mV/step；DOC2: 60mV to 260mV, 13.3mV/step➢ SC: VSC = 1.5X or 2.5X VDOC2
Charge Current Protection 5 mV to 68.5mV, 0.5mV/step
Temperature Protection: COT/DOT/CUT/DUT
Dedicated 3.3V LDO for external micro-controller
Simultaneous Multi - Cell BalanceeLock and PWM control input
End-of-Charge (EOC) function (optional)
Cell-Tap-Open (CTO) Detection (optional)
I2C Interface and ALERT Output to Optional External Host
Low Power Consumption Active: <60uA (Typ) ; Sleep: < 4uA (Typ) Shutdown: < 2.5uA (Typ)GENERAL DESCRIPTIONOZ7708 is a highly integrated, low cost Battery Pack Management IC for 5~8s Li-Ion/Polymer battery
packs used in E-scooters, power tools, garden tools, home appliances and other applications. OZ7708
may operate standalone or host mode. A dedicated 3.3V LDO is for external host. It integrates an ADC tomeasure cell voltages, temperature, charge/discharge current and a safety engine which performs highaccuracy and high reliable protection for the following safety events: OV, UV, COC, DOC (DOC1 andDOC2), SC, COT, DOT, CUT (Optional) and DUT (Optional).
OZ7708 provides two independent discharge current channels. The safety engine uses digital thresholdvalues to compare with ADC digital outputs to detect DOC1 and COC. This enables high-accuracy current
sense with the use of small current sense resistors (e.g. 2.5 mΩ) to reduce power dissipation and heat.
OZ7706A uses one dedicated fast comparator for DOC2 detection and another for SC detection for eachdischarge channel. Each discharge channel has independent thresholds.

APPLICATION DIAGRAM• E-scooter• Vacuum Cleaner or other Home Appliance• Garden Tool, Power Tool, Energy Storage

PACK+

10K

10K

VMCU

10K

APPLICATIONS

51

BAT7

V5

GPIO2
VSS

OZ7708(SSOP24)

BAT5

MOD/SCL

BAT3

0.1u

GNDD
ELOCK/SDA

BAT4

EFETC

BAT2
0.1u

2K
BAT1

VM

GNDA

DSG_S

ISN_M

DSG_M

ISN_S

TS

22nF

100K

1K

100K

2M

MDSG1

15V

0

10M

100K NTC

2M

51

MCU

SCL

ALTN

BAT6

0.1u
0.1u

GPIO1
SDA

VMCU

2.2uF

0.1u

51

V33

2.2uF

0.1u

51
51
51

CHG

BAT8
0.1u

51
51

System/UPS

VCC
2u

51

VCC

RS-M

0

PACK-M

1M

MCHG

10M
RS-S

4

15V

1K

Homepage

CHGMDSG2

PACK-SOZ7710FEATURES
 Standalone Protection; µC optional
 High Accuracy Voltage Protection: OVP (Over-Voltage Protection) and UVP (Under-Voltage Protection)
 3-level Discharge Current Protection➢

Discharge-Over-Current 1 (DOC1)➢

Discharge-Over-Current 2 (DOC2)➢

Short-Circuit (SC): VSC = 2.5*VDOC2

 Charge Current Protection➢

Charge-Over-Current (COC) Temperature Protection:➢

Charge-Over-Temperature (COT)➢Charge-Under-Temperature (CUT) (optional)➢

Discharge-Over-Temperature (DOT)➢

Discharge-Under-Temperature (DUT) (optional)➢ Cell Balance Over Temperature (CBOT)








Simultaneous Multi-Cell Balance Support
eLock and PWM Control Input Support
End-of-Charge (EOC) Function (optional)
Cell-Tap-Open (CTO) Detection (optional)
I2C Interface and ALERT Output to Optional External Host µC
Voltage-Based State-of-Charge Indicators (Pins for driving 4 LEDs in 28Pin package) Low Power Consumption

GENERAL DESCRIPTIONOZ7710 is a highly integrated, low-cost Battery Pack Protection Integrated Circuit for 5 to 10 serial cells. It
can operate standalone to provide complete protections; it may be used with a host Microcontroller for
more advanced management, if desired. It integrates an ADC to measure cells voltage, temperature andcharge/discharge current. OZ7710 also includes a safety engine that performs high accuracy and highreliable protections: OV, UV, COC, DOC (DOC1 and DOC2), SC, COT, DOT, CUT (Optional), DUT(Optional), CBOT, CTO and EOC.
OZ7710 integrates an eLock anti-theft function. For eBike or Vacuum Cleaner battery packs, normally thedischarge path is cut off when a mechanical lock or switch in the system is turned off. OZ7710 provides apin to simplify implementation of this function.
OZ7710 integrates O2Micro’s BODTM (Balance On Demand) patented technologies, providing maximum
energy per charge and longest cell cycle life. The maximum internal cell balance current is 25mA per cell;for higher cell balance current, an external cell balance circuit may be used.
For DOC2 detection OZ7710 uses a fast comparator and a second fast comparator for Short Circuit
detection.
5

OZ7710 provides an I2C interface enabling an external Host to access OZ7710 internal registers forreading cell voltage, temperature and battery charge/discharge current for advanced battery
management.

APPLICATIONS••••APPLICATION DIAGRAM

Home Appliance
E-Bike, E-scooter
Garden Tool, Power Tool
Energy Storage System/UPS
PACK+

ALTN

BAT8

GNDD

OZ7710
BAT6

0.1u

0.1u

(SSOP24)

820K

LEDON/SDA

BAT7

0.1u

MOD/SCLBAT5

ELOCK/EFETC

BAT4

CHGIN

E-LOCK

BAT3

VM

BAT2

DSG

BAT1

TS

GNDA

ISEN

100K

0.1u

0.1u
2K

2M

0.1u

22nF

100K

0.1u

100K NTC

51

51

BAT9

10K

0.1u

51

51

VDD
2.2uF

0.1u

51

51

BAT10
0.1u

51

51

CHG

2u

51

51

VCC

1M

51

MDSG

100K

2M

15V

0

10M

1K

RS

MCHG

1.3M

0

PACK-

CHG-

Homepage
6

OZ7714FEATURES
 Standalone Protection; µC optional
 High Accuracy Voltage Protection: OVP (Over-Voltage Protection) and UVP (Under-Voltage Protection)
 3-level Discharge Current Protection➢

Discharge-Over-Current 1 (DOC1)➢

Discharge-Over-Current 2 (DOC2)➢

Short-Circuit (SC): VSC = 2.5*VDOC2

 Charge Current Protection➢

Charge-Over-Current (COC) Temperature Protection:➢

Charge-Over-Temperature (COT)➢Charge-Under-Temperature (CUT) (optional)➢

Discharge-Over-Temperature (DOT)➢

Discharge-Under-Temperature (DUT) (optional)➢

Cell Balance Over Temperature (CBOT)







Simultaneous Multi-Cell Balance Support
eLock function
End-of-Charge (EOC) Function (optional)
Cell-Tap-Open (CTO) Detection (optional)
I2C Interface to External Host
 Low Power Consumption

GENERAL DESCRIPTIONOZ7714 is a highly integrated, low-cost Battery Pack Protection Integrated Circuit for 7 to 10 serial cells. It
can operate standalone to provide complete protections; it may be used with a host Microcontroller for
more advanced management, if desired. It integrates an ADC to measure cells voltage, temperature andcharge/discharge current. OZ7714 also includes a safety engine that performs high accuracy and highreliable protections: OV, UV, COC, DOC (DOC1 and DOC2), SC, COT, DOT, CUT (Optional), DUT(Optional), CBOT, CTO and EOC.
OZ7714 integrates an eLock anti-theft function. For eBike or Vacuum Cleaner battery packs, normally thedischarge path is cut off when a mechanical lock or switch in the system is turned off. OZ7714 provides apin to simplify implementation of this function.
OZ7714 integrates O2Micro’s BODTM (Balance On Demand) patented technologies, providing maximum
energy per charge and longest cell cycle life. The maximum internal cell balance current is 25mA per cell;for higher cell balance current, an external cell balance circuit may be used.
For DOC2 detection OZ7714 uses a fast comparator and a second fast comparator for Short Circuit
detection.
OZ7714 provides an I2C interface enabling an external Host to access OZ7714 internal registers for7

reading cell voltage, temperature and battery charge/discharge current for advanced battery
management.

APPLICATIONS••••APPLICATION DIAGRAM

Home Appliance
E-Bike, E-scooter
Garden Tool, Power Tool
Energy Storage System/UPS
PACK+

0.1u

VDDA

BAT14

VDDD

BAT13

ELOCK/SDA

BAT12MOD/SCL

BAT11

CHG

BAT10

VM

200K

4.7u

VCC

GNDA

2.2u

51
51

2.2u

E-LOCK

GNDD

1K
DSG

BAT8

(QFN28)

ISEN

BAT7

TS

BAT6

GNDA

NC

GNDD

BAT5

ALTN

2M

1N4148

GNDD
BAT4

BAT1

BAT3

BAT2

0.1u

0.1u
100K

OZ7714100K NTC

BAT9

GNDA
100

2M
51

0.1u
RSENSE

15V

0.1u
10M

51

1K

0.1u

51

1K

MDSG

GNDD

MCHG

15V

GNDA

1.2M

PACK-

CHG-

Homepage8

OZ93510
FEATURES OZ93510 is a highly integrated, high performance battery management system integrated circuit to











monitor and protect up to 10 Li-Ion cells in series
Integrates a 32Bit ARM Cortex M0 MCU with 32KBytes eFlash (8K x 32 bits)
Extended Flash (64 or 128KBytes) for Data storage is available as package option.
High-voltage (60V) front end to measure individual cell voltage differentially with 14-bit SAR ADC
Accurate pack current measurement and Coulomb Counting with a 16-bit current ADC enabling SOC
and SOH functionality
Multiple serial buses: SPI, UART, and I2C.
Up to 2 DSG drivers with fast turn-off and 2 CHG drivers
Multiple temperature sense channels with precision internal current source
Precision Real Time Clock with optional crystal
Fast Over-Current/Short-Circuit protection with embedded analog comparators
Hardware based auto-scan to improve safety➢

MCU based primary protection➢

Hardware based standalone protection as optional redundancy protection

 Up to 22 GPIOs, includes12 general purpose ADC inputs (package dependent) Timers (Two 32-bit timers, Two16-bit timers with PWM support, and Windowed WDT) DMA control to directly access related blocks
 Low Power consumption

GENERAL DESCRIPTIONOZ93510 is a highly integrated, high performance battery management IC that can monitor and protectfrom 3 to 10 cells in series. It also integrates various series communication interfaces such as SPI, I2C
and UART, together with multiple general purpose IOs for function expansion.
OZ93510 integrates a 32Bit ARM Cortex M0 MCU with 32Kbytes embedded eFlash (8K x 32bits) foradvanced battery pack management program storage and other non-volatile memory needs.
It features a high-voltage (60V) front end to measure differential cell voltages with a 14-bit ADC.
It also has accurate pack current measurement and Coulomb counting with a 16-bit current ADC enabling
SOC and SOH functionality. Additional fast Over Current/Short Circuit protections are provided byreal-time Comparators.

APPLICATIONSAPPLICATION DIAGRAM
V33

PACK+

Cell10Electric Motorcycles

OZ93510

PA4

PB5

PB7

PB6

PB1

GNDD

V33

VD18

Electric Bicycles

VCC

Power Tool

VD18

Cordless Vacuum Cleaners
VMCU

•
•
•
•

PB2

Cell2

PB1
PB0

PA3

PA2

PA0

ISN

ISP

VREF
V5A

Cell1
GNDA

BLE_ENSCL/SDA

PB3
I2C
CHG
VM/WKUP
PB4/MDSG

PA1

BLE
ModuleCHG
VM
DSG
Chg_req
Com
Com_ins

Charger/ToolsI/F (T1, T2)

32.768K

Homepage
Rsen

9

PACKDSG_FET

CHG_FET

OZ93506
FEATURES OZ93506 is a highly integrated, high performance battery management system integrated circuit to











monitor and protect up to 6 Li-Ion cells in series
Integrates a 32Bit ARM Cortex M0 MCU with 16KBytes eFlash (4K x 32 bits)
Extended Flash (64 or 128KBytes) for Data storage is available as package option.
High-voltage (40V) front end to measure individual cell voltage differentially with 14-bit SAR ADC
Accurate pack current measurement and Coulomb Counting with a 16-bit current ADC enabling SOC
and SOH functionality
Multiple serial buses: SPI, UART, and I2C.
Dedicated FET driver for Charge/Discharge control
Multiple temperature sense channels with precision internal current source
Precision Real Time Clock with optional crystal
Fast Over-Current/Short-Circuit protection with embedded analog comparators
Hardware based auto-scan to improve safety➢

MCU based primary protection➢

Hardware based standalone protection as optional redundancy protection

 Up to 20 GPIOs, includes 8 general purpose ADC inputs
 Timers (Two 32-bit timers, Two16-bit timers with PWM support, and Windowed WDT) DMA control to directly access related blocks
 Low Power consumption

GENERAL DESCRIPTIONOZ93506 is a highly integrated, high performance battery management IC that can monitor and protectfrom 3 to 6 cells in series. It also integrates various series communication interfaces such as SPI, I2C andUART, together with multiple general purpose IOs for function expansion.
OZ93506 integrates a 32Bit ARM Cortex M0 MCU with 16Kbytes embedded eFlash (4K x 32bits) andoptional additional 64K or 128Kbytes extension for advanced battery pack management data and/or codestorage and other non-volatile memory needs.
It features a high-voltage (40V) front end to measure differential cell voltages with a 14-bit ADC.
It also has accurate pack current measurement and Coulomb counting with a 16-bit current ADC enabling
SOC and SOH functionality. Additional fast Over Current/Short Circuit protections are provided byreal-time Comparators.

APPLICATIONSAPPLICATION DIAGRAM
V33

PACK+

PA4

PB5

PB10

PB6

SW1

GNDD

V33

Home Appliances

VD18

VCC

Power Tool, Garden Tool

VD18

Cordless Vacuum Cleaners
VMCU

•
•
•

OZ93506

PA3

PA2

PB1
PB0

PA0

ISN

ISP

Homepage

VREF
V5A

PB2

GNDA

BLE_ENSCL/SDA

PB3
I2C
CHG
VM/WKUPPB4/DSGPA1

BLE
ModuleCHG
VM
DSG
Chg_req
Com
Com_ins

Charger/ToolsI/F (T1, T2)

32.768K

10Rsen

PACKDSG_FET

CHG_FET

OZ93110FEATURES Cell Voltage Measurement➢ 12-bit ADC with input range: 0V to 5.12V➢ Accuracy (at 4.25V, 23℃): ±10mV@ typical Pack Current Measurement➢ 16-bit dedicated ADC with input range: -256mV to 256mV➢ Accuracy (in the whole input range) @ 23℃:oGain error:oOffset error: ±100µV@ typical

1% @ typical Pack Temperature Measurement➢ 12-bit ADC with input range: 0V to 2.56V➢

Accuracy (at 1V, 23℃): ±2mV@ typical Multiple Level, Programable Battery Protection including:➢ Over-Voltage (OV)
➢ Under-Voltage (UV)
➢ Over-CurrentoCharger-Over-Current (COC)oDischarge-Over-Current 1 (DOC1)o

Discharge-Over-Current 2 (DOC2)o

Short-Circuit (SC)➢ Charge-Over-Temperature (COT)➢ Charge-Under-Temperature (CUT) (optional)➢ Discharge-Over-Temperature (DOT)➢ Discharge-Under-Temperature (DUT) (optional)

 Simultaneous Multi - Cell Balance Integrated Low Power 8-bit Microcontroller➢ 64k bytes EFLASH and 1k bytes SRAM
➢ Optional and customized battery Gas Gauge algorithm➢ 10 GPIO ports for extended battery management (Load-off detection, LED drivers, etc.)➢ SBS V1.1 compatible

 Integrates Hardware Coulomb Counter Ultra-Low Power Consumption

GENERAL DESCRIPTIONOZ93110 is a highly integrated, low-cost Battery Pack Management IC for 4 to 10 serial cells
Li-Ion/Polymer battery packs used in eBike, power tools, garden tools, home appliances, drone and otherapplications. OZ93110 integrates a highly reliable Digital-Front-End (DFE) and an 8-bit low power
Microcontroller.
The DFE is responsible to converting cell and thermistor voltages to digital values with a level shifter anda 12-bit ADC.
11

The 8-bit Microcontroller uses the digital ADC values from the DFE to monitor each cell state and thebattery pack temperature. It also performs patented “Balance On Demand (BOD)” algorithm to determine
which cell needs balancing, then controls the balance switches in the DFE.
OZ93110 integrates a 15-bit +sign bit ADC for accurate COC/DOC1 protection current measurement andfast analog comparators for DOC2/SC protection.
OZ93110 integrates a dedicated Coulomb Counter implementing a high precision Gas Gauge. It also
supports Smart Battery Specification (SBS) V1.1. External microcontroller simply needed for systemmanagement.
The 64k bytes EFLASH and 1k bytes SRAM together with the Microcontroller provide programming spaceand flexibility, so it is possible to implement flexible and customized battery protection engine, powermode management and high precision Gas Gauge algorithm. The integrated 10 GPIO ports further
extend the battery management ability such as Load-off detection, LEDs driver, etc.

APPLICATIONS
•
•
•
•
•

APPLICATION DIAGRAM

Home Appliance
E-Bike, E-scooter
Garden Tool, Power Tool
Energy Storage System/UPS
Drone

BAT+

PACK+

51

BAT8

EDSG

BAT7

ECHG

BAT6

INT#

BAT5

RESET#

BAT4

INSYS

BAT3

SDA

100

100

100

100

1M

DSG_EN

1M

0.1u

BAT-

SMBCLK
100

0.1u

BAT-

CHG_EN

100

0.1u

51

SMBDAT

BAT9

100

0.1u

51

0.1u

51

BAT10
0.1u

51

51

RSTN

2u

51
51

RST

100
VCC

2.2u

0.1u
51

PACK-

10K

100p 100p

V3.3

1K

100

0.1u

0.1u

51

0.1u

51

BAT2

SCL

BAT1

GPIO9

V3.3
5.1K

0.1u

5.1K
GNDA

OZ93110

GPIO8
1K

GNDA

GPIO7

ISN

GPIO6

ISP

GPIO5

SP

GPIO4

1K

1K

SM

0.1u

GPIO3

5.1K

CHG_OUT

5.1K

LOAD_OFF1n

EN_LOAD_DET
1K

GPIO2

10K NTC

BAT+

1K

1n

1K

V3.3

1K
THM1

GPIO1

THM2

GPIO0

10K

1K

10K NTC

AUX

V33D

VCELL

V33A

VREF

V33

VDDA

GNDD

V3.3

2.2u

2.2u

1K

DSG_EN

1K

LED

0.1u

0.1u

CHG_EN

V18

2.2u

2.2u

BAT+

10M

15V

100

100

MDSG

MCHG

15V

MOSFET Driver

1u

1M

10n

0.1u

0.1u 0.1u

RS

BAT-

PACK-

0

EN_LOAD_DET
LOAD_OFF

Homepage

12

Load-on/off
DetectChargerin/out
Detect

CHG_OUTPACK-OZ8955
FEATURES
 High Accuracy Voltage Detection➢ Over voltage (OV) threshold range➢

VOVP: 3.6V~4.35V; ±25mV

Permanent Failure protection threshold range- VPF=VOVP+(75mV~250mV); ±25mV , Release VPFR=VOVR

➢







Under voltage (UV) threshold range- VUVP: 1.9V~2.9V; ±80mV - Hysteresis Voltage: 0V~1.0V
Permanent Failure (PF) burn fuse protection
Independently Adjustable OV, UV and PF delay timers
Charging Permission (CP) condition check
Over-Temperature (OT) Protection
Low Power Consumption➢

Full-power mode: <25uA Max ( 25°C ) Sleep mode: <5.5uA Max ( 25°C )➢Standby mode: <3uA Max ( 25°C )UVLO mode: <1.5uA Max ( 25°C )GENERAL DESCRIPTIONOZ8955 is a highly integrated, low cost, protection and monitoring IC for battery packs with 3, 4 or 5
Li-ion/Polymer cells. It features Over Voltage (OV), Under Voltage (UV), Charging Permission (CP), Over
Temperature (OT) and Permanent Failure (PF) burn fuse protection functions to ensure safety of thebattery pack used in power-tools, notebook and UPS applications. The number of cells protected by the
OZ8955 is model selectable and configured by O2Micro based on requirement of the system designer.
OZ8955 provides a special STBY pin to control the IC’s power modes. When STBY pin is connected to
VCC or floating, except during OV protection state, OZ8955 enters standby mode from full power mode tosave power consumption. When STBY pin is connected to VSS, OZ8955 returns to full-power mode. In
standby mode, OZ8955 periodically returns to full power mode to check if OV event has occurred. If OV
event occurs, OZ8955 exits standby mode and continues to operate in full power mode.
OZ8955 can directly drive both the charge and discharge NMOS FET at the Pack- side.

APPLICATIONS••••Power Tools

APPLICATION DIAGRAM
PACK+

Notebook PC
CHG

VCC

UPS

VM

BAT1

DSG

BAT2

Remote Controlled Vehicles

PFT

BAT3

OZ8955
UVT

BAT4

OVT

BAT5

VSS
TS/ ALARM

Homepage
13

PACK-

STBY
TREF/PFOZ8957
FEATURES










Stack multiple OZ8957 ICs to protect 8 to 21 cells in series, or moreHigh Accuracy Voltage Detection➢
OV: VOVP: 3.6 to 4.35 V; ±25 mV, Hysteresis Voltage: 0 V, or 0.1 to 0.25 V➢
UV: VUVP: 1.9 to 2.9 V; ±80 Mv, Hysteresis Voltage: 0 to 1.0 V
3-Level High Accuracy Over-Current Protection➢ DOC1: VDOC1 = 0.025 to 0.35 V; ±10 mV DOC2: VDOC2 = 2.0*VDOC1; SC: VSC = 5.0*VDOC1
Load-open or Charger-In release for discharge protection
Balances VCC current for each chip in stacked application (patent pending)Charging Permission (CP) condition check
Supports NMOS-FET for charge and discharge control switch at negative pack side
Low Power Consumption
21 μA (Typ)➢Full power mode:➢Standby mode: 1.5 μA (Typ)

Sleep mode:

6 μA (Typ)

Shutdown:

0.15 μA (Typical)

GENERAL DESCRIPTIONOZ8957 is a highly integrated, low cost, stackable IC that protects 4 to 7 cell Li-Ion/Polymer battery packs
used in power-tools, e-bikes, e-scooters, notebook PCs, UPS, and other applications. OZ8957 detects OV,
UV, OC and SC conditions with high accuracy.
OZ8957 detects Over Current with ±10 mV maximum error. This enables high-accuracy current sensewith the use of small resistors (e.g. 2.5 mΩ, or 5 mΩ) to reduce power dissipation and heat. OZ8957
includes three integrated comparators for 3-level Over Current Protection. These comparators provide
accurate and timely protection, and include false-trigger protection.
OZ8957 has two low power modes: Sleep mode and Standby mode. In Sleep mode, the typical current
consumption is 6μA. The typical current consumption is 1.5μA.
OZ8957 is stackable to support applications with 8 to 21 cells, or even larger cell stacks. When stacked,
the current consumed by each OZ8957 is automatically balanced.

APPLICATIONS
•
•
•
•
•

APPLICATION DIAGRAM

Power Tools

PACK+

E-Bike/E-Scooter

VCC

Notebook PC

CTLD

VBAT

CTLC

BAT7

STBO

BAT6

SEL2

BAT5

SEL1
0.1u

BAT4

UPS

BAT3

OZ8957
SSOP24

SPT
0.1u

UVT
0.1u

Remote Controlled Vehicles

BAT2

OVT

BAT1

STBI

BAT0

CHG

VSS

DSG

ISEN

VM

MDSG

PACKRsense

MCHG

Homepage
14

CHG-

OZ7703/4/5
FEATURES
 Voltage Protection: High Accuracy

OV: 4.1V to 4.475V; 25mV/step ; UV: 2V to 3V; 100mV/step; Current Protection: 3-levels






➢ DOC1: VDOC1 = 0.025 to 0.35 V; DOC2: VDOC2 = 2.0*VDOC1; SC: VSC= 5*VDOC1
Discharge Protection Release: Load-off or Charger-in Release
Temperature Protection: COT/DOT/CUT
Cell-Tap-Open Detection(CTO)
Temperature-Sensor-Open Detection (TSO)
Low Power Consumption➢

Full-power mode: 20uA (Typ)➢

Sleep mode:

4.5uA (Typ)➢Power down:

0.5uA (Typ)GENERAL DESCRIPTIONOZ7703/4/5 is a highly integrated, low cost IC that protects 3/4/5 cell Li-Ion/Polymer battery packs used in
power tools, home appliance and other battery powered applications.
It
integrates
asafetyengineOV/UV/DOC1/DOC2/SC/COT/DOT/CUT

toperformhighaccuracy

battery

protections:

It also provides Cell-Tap-Open (CTO) detection and Temperature-Sensor-Open (TSO) detection, when
any of these events occurs, OZ7703/4/5 will switch off the charge and discharge MOSFETs to ensure
system safety.
OZ7703/4/5 includes three comparators for 3-levels Over-Current protection. Each level has a proper
protection delay timer to avoid false-trigger.

APPLICATIONSAPPLICATION DIAGRAM• Power Tools• Home Appliance• Remote Controlled Vehicles

PACK+

2.2u

300
2.2u

300

VCC

VDDA
10K

BAT 5
300
300
300
300

0.1u

SCX

0.1u

10K

BAT 4

SDX

BAT 3
OZ7705CHG

BAT 2 (SOP16)

VM

0.1u

22n

0.1u
BAT 1

DSG

0.1u

103AT-4
VSS

TS

ISEN

TREF
10K

0.1u

RS

1K
1K

15V

10M

100

MDSG

1K

Homepage

MCHG

2M

PACK-

CHG-

15

OZ77205
FEATURES
 Protection parameter field programming capability or preprogrammed in One-Time Programmable










(EPROM) memory
Accurate Voltage Protection➢ OV: 3.5V to 4.5V; 10mV/Step, Accuracy: ±15mV (typ.);➢ UV: 1.2V~1.8V; 200mV/step, 1.8V~ 3.0V;100mV/step
Current Protection: COC and 3-levels DOC➢ COC: 5~80mV, 5mV/step (optional)➢ DOC 1: VDOC1 = 10~160mV; 10mV/step DOC2: VDOC2 = 2.0*VDOC1 SC:
Temperature Protection CUT/DUT/COT/DOT
Cell-Tap-Open Detection(CTO) (Optional)
Temperature-Sensor-Open Detection (TSO) (Optional)
Cell tap filter Resistor (RF): Up to 10KΩ
Ultra-low current consumption:➢ Active: 6µA (CHG pin is floating);
Power-Down: 0.3 µA (Typ)

VSC= 4*VDOC1

GENERAL DESCRIPTION
OZ77205 is a highly integrated, cost-competitive battery protection IC that monitors 3~5 cell
Li-Ion/Polymer battery packs used in power tools, home appliance and other battery powered
applications.
OZ77205 integrates a safety engine to perform high accuracy battery protections:
OV/UV/COC(optional)/DOC1/DOC2/SC/COT(optional)/DOT(optional)/CUT(optional)/DUT(optional)
Under usual configuration, when OV, COC, COT, CUT, DUT or DOT events occur, the CHG output will bein OFF state; when UV, DOC1, DOC2, SC, DUT or DOT events occur, the DSG output will be in OFF state.
When no protection events occur, CHG and DSG will be in ON state. It also provides Cell-Tap-Open (CTO)
detection and Temperature-Sensor-Open (TSO) detection. When any of these events occurs, CHG and
DSG will be in OFF state.OZ77205 includes three comparators for 3-levels Discharge Over-Current
protection. Each level has a proper protection delay timer to avoid false-trigger.

APPLICATIONS••••APPLICATION DIAGRAM
PACK+Power Tools
1K

Cordless Vacuum Cleaners
Battery Powered Home Appliance

VCC

2.2uF

10K
10K

BAT5
4.7nF

10K

VM

BAT3
BAT2

SCX

BAT1

COD/SDX

VSS

TS

ISEN

TREF

4.7nF
10K
0.1u
4.7nF

DSG

OZ77205
SSOP16 VDD

4.7nF

Other LiIon battery powered application

CHG

BAT4

2.2uF

1M

2Meg

1K
5.1K

10K

22nF
100

4.7nF

1K

10K

1K

1N414810K
2M

103AT NTC

2Meg

Homepage

PACK-

RSENSEDSGFET

CHGCHGFET16

OZ8975
FEATURES
 Protection for 3~5 LiIon Series Cells
 Protection parameter field programming capability or preprogrammed in One-Time Programmable







(EFUSE) memory
Accurate Voltage Protection:➢ OV: 3.5V to 4.5V; 10mV/Step Accuracy: ±15mV (typ)➢ UV(Optional) : 1.2V~1.8V; 200mV/step; 1.8V~ 3.0V;100mV/step Accuracy: ±35mV (typ)Temperature Protection CUT/COT/DOT
Cell-Tap-Open Detection (CTO)
Cell tap filter Resistor (RF): 10KΩ
Ultra-low current consumption 0.8uA (Typ.)

GENERAL DESCRIPTIONOZ8975 is a highly integrated, cost-competitive battery protection IC that monitors 3~5 cell Li-Ion/Polymer
battery packs used in power tools, home appliance and other battery powered applications.
OZ8975 integrates a safety engine to perform
OV/UV(optional)/COT(optional)/DOT(optional)/CUT(optional)

highaccuracy

battery

protection:

Under usual configuration, when OV, COT, CUT or DOT events occur, the CHG pin will be in OFF state;when UV or DOT events occur, the DSG pin will be in OFF state. When no protection events occur, CHG
and DSG will be in ON state. To meet different application requirements, the definition (High or Low) of the
ON state and OFF state of CHG and DSG are configurable, and COT, CUT, UV protection can bedisabled, also the relationship between the CHG state and UV protection is selectable. OZ8975 also
provides Cell-Tap-Open (CTO) detection. When this event occurs, OZ8975 will set both CHG and DSG in
OFF state for fault alert.
OZ8975 provides 2 types of outputs on its CHG and DSG: Low-voltage CMOS (push-pull or open-drain
selectable)(Version C) and High-voltage Open-drain (Version D).

APPLICATIONS•••APPLICATION DIAGRAM

Power Tools

PACK+
SSOP16

Home Appliance
Other LiIon battery powered application

VCC

NC

NC

SDA/SYN

2.2u
NC

SCL

BAT5

CHG

10K
10K
10K
10K

0.1u

DSG

BAT3

TREF

CHG
DSG
10K

0.1u
0.1u

OZ8975

BAT4

BAT2

TS

BAT1

VSS

10K 0.1u103AT-4

0.1u

PACK-

Homepage17

OZ8978
FEATURES
 Protection for 5~8 LiIon Series Cells
 Protection parameter field programming capability or preprogrammed in One-Time Programmable







(EFUSE) memory
Accurate Voltage Protection:➢ OV: 3.5V to 4.5V; 10mV/Step Accuracy: ±15mV (Typ)➢ UV(Optional) : 1.2V~1.8V; 200mV/step; 1.8V~ 3.0V;100mV/step Accuracy: ±35mV (Typ)Temperature Protection CUT/COT/DOT
Cell-Tap-Open Detection(CTO)
Cell tap filter Resistor (RF): 10KΩ
Ultra-low current consumption 0.9uA (Typ.)

GENERAL DESCRIPTIONOZ8978 is a highly integrated, cost-competitive battery protection IC that monitors 5~8 cell Li-Ion/Polymer
battery packs used in power tools, home appliance and other battery powered applications.
OZ8978 integrates a safety engine to perform
OV/UV(optional)/COT(optional)/DOT(optional)/CUT(optional)

highaccuracy

battery

protection:

Under usual configuration, when OV, COT, CUT or DOT events occur, the CHG pin will be in OFF state;when UV or DOT events occur, the DSG pin will be in OFF state. When no protection events occur, CHG
and DSG will be in ON state. To meet different application requirements, the definition (High or Low) of the
ON state and OFF state of CHG and DSG are configurable, and COT, CUT, UV protection can bedisabled, also the relationship between the CHG state and UV protection is selectable. OZ8978 also
provides Cell-Tap-Open (CTO) detection. When this event occurs, OZ8978 will set both CHG and DSG in
OFF state for fault alert.
OZ8978 provides 2 types of outputs on its CHG and DSG: Low-voltage CMOS (push-pull or open-drain
selectable)(Version C) and High-voltage Open-drain (Version D).

APPLICATIONS••••APPLICATION DIAGRAM

Vacuum Cleaners

PACK+

Power Tools

510

SSOP16

10K

Home Appliance

0.1u

10K

Other LiIon battery powered application

10K

0.1u

VCC
SDA/SYN

BAT6

SCL

BAT5

CHG

0.1u

10K

0.1u

10K 0.1u

OZ8978

BAT4

DSG

BAT3

TREF

CHG
DSG
10K

0.1u

10K

0.1u

0.1u

10K

10K

BAT8
BAT7

BAT2

TS

BAT1

VSS

103AT-4

0.1u

Homepage
PACK-18

OZ89710
FEATURES
 Protection for 5~10 Li-Ion Series Cells
 Protection parameter field programming capability or preprogrammed in One-Time Programmable







(EFUSE) memory
Accurate Voltage Protection:➢ OV: 3.5V to 4.5V; 10mV/Step Accuracy: ±15mV (typ)➢ UV: 1.2V~1.8V, 200mV/step;1.8V~ 3.0V, 100mV/step; Accuracy: ±35mV (Typ.)
Temperature Protection(Optional): COT/DOT/CUT
Cell-Tap-Open Detection(CTO) (Optional)
Cell tap filter Resistor (RF): 10KΩ
Ultra-low current consumption 1uA (Typ.)

GENERAL DESCRIPTIONOZ89710 is a highly integrated, cost-competitive battery protection IC that monitors 5~10 cell
Li-Ion/Polymer battery packs used in power tools, home appliances and other battery powered
applications.
OZ89710 integrates a safety engine to perform high
OV/UV(Optional)/COT(Optional)/DOT(Optional)/CUT(Optional)

accuracy

battery

protection:

When any safety event occurs, either CHG or DSG output state will be changed. One default setting isprovided in Protection State and DSG, CHG Output Summary Table. To meet different application
requirements, the output type definition (Open-drain or push-pull, active high or active low) of CHG and
DSG are set as user parameters in the EFUSE.
OZ89710 also provides Cell-Tap-Open (CTO) detection. When this event occurs, OZ89710 will set both
CHG and DSG in Off-state for fault alert.
OZ89710 provides 2 types of outputs on its CHG and DSG: high voltage open-drain and low voltage
open-drain/push-pull.

APPLICATIONSPACK+Vacuum Cleaners

CHG
DSG

Power Tools

VSS

VCC

SDA/SYN

NC

2.2uF

510

ALRT

Other LiIon battery powered application

CHG

Home Appliance
DSG

•
•
•
•

APPLICATION DIAGRAM

TREF

BAT10
1nF

10K

OZ89710
QFN20

BAT9
1nF

10K

VSS

BAT7

BAT1

BAT3

BAT2

BAT4

BAT6

1nF
1nF
1nF

1nF

10K

Homepage

103AT4

BAT8

BAT5

1nF

10K
10K

10K

TS

1nF

10K
10K

10K

SCL
10K

10K

1nF
1nF

PACK-

19

OZ89725
FEATURES
 Protection for 3~5 LiIon Series Cells
 Protection parameter field programming capability or preprogrammed in One-Time Programmable







(OTP) memory
Accurate Voltage Protection:➢ OV: 3.5V to 4.5V; 10mV/Step Accuracy: ±15mV (typ)➢ UV (Optional) : 1.2V~1.8V, 200mV/step; 1.8V~3.0V,100mV/step, Accuracy: ±35mV (typ)Temperature Protection(Optional): COT/DOT/CUT/DUT
Cell-Tap-Open Detection (CTO) (Optional)
Cell tap filter Resistor (RF): Up to 10KΩ
Ultra-low current consumption 1.2µA (Typ.)

GENERAL DESCRIPTIONOZ89725 is a highly integrated, cost-competitive battery protection IC that monitors 3~5 cells
Li-Ion/Polymer battery packs used in power tools, cordless Vacuum Cleaner and other battery powered
applications.
OZ89725 integrates a safety engine to perform high
OV/UV(Optional)/COT(Optional)/DOT(Optional)/CUT(Optional)

accuracy

battery

protection:

Under normal configuration, when any of OV, COT, CUT, DOT or DUT events occurs, the CHG pin will bein OFF state; when any of UV, DOT or DUT events occurs, the DSG pin will be in OFF state. When noprotection events occur, CHG and DSG will be in ON state. To meet different application requirements,
the definition (High or Low) of the ON state and OFF state of CHG and DSG are configurable, and COT,
CUT, DOT, DUT or UV protection can be disabled individually, also the relationship between the CHG
state and UV protection is selectable. All these options are set as user parameters in the OTP.
OZ89725 also provides Cell-Tap-Open (CTO) detection optionally. When this event occurs, OZ89725 will
set both CHG and DSG in OFF state for fault alert.
OZ89725 provides 2 types of outputs on its CHG and DSG: push-pull and open-drain.

APPLICATIONS•••APPLICATION DIAGRAM

Cordless Vacuum Cleaner
PACK+

Power Tools

SSOP16

1K

Other LiIon battery powered application
2.2u

VCC

NC

NC

SDA
SCL

NC
10K
BAT5
10K
10K
10K

2.2n

CHG

BAT4

DSG

BAT3

TREF

BAT2

TS

BAT1

VSS

10K 2.2nHomepage

CHG
DSG
10K

2.2n
2.2n

OZ89725

103AT-4

2.2n

PACK-

20

OZ26305
FEATURES
 Protection for 3~5 LiIon Series Cells
 Protection parameter field programming capability or preprogrammed in One-Time Programmable






(OTP) memory
Accurate Voltage Protection:➢ OV: 3.5V to 4.5V; 10mV/Step Accuracy: ±15mV (Typ)➢ UV (Optional): 1.2V~1.8V,200mV/step; 1.8V~ 3.0V,100mV/step; Accuracy: ±35mV (Typ)Cell-Tap-Open Detection (CTO) (Optional)
Cell tap filter Resistor (RF): Up to 10KΩ
Ultra-low current consumption 1.2µA (Typ.)

GENERAL DESCRIPTION
OZ26305 is a highly integrated, cost-competitive battery protection IC that monitors 3~5 cell
Li-Ion/Polymer battery packs used in power tools, cordless Vacuum Cleaner and other battery powered
applications.
OZ26305 integrates a safety engine to perform high accuracy battery protection: OV and UV(optional)
Under normal configuration, when OV event occurs, the CHG pin will be in OFF state; when UV event
occurs, the DSG pin will be in OFF state. When no protection events occur, CHG and DSG will be in ON
state. To meet different application requirements, the definition (High or Low) of the ON state and OFF
state of CHG and DSG are configurable, and UV protection can be disabled, also the relationshipbetween the CHG state and UV protection is selectable. All these options are set as user parameters in
the OTP memory.
OZ26305 also provides Cell-Tap-Open (CTO) detection optionally. When this event occurs, OZ26305 will
set both CHG and DSG in OFF state for fault alert.
OZ26305 provides 2 types of outputs on its CHG and DSG: push-pull and open-drain.

APPLICATIONS•••APPLICATION DIAGRAM

Vacuum Cleaners

PACK+

Power Tools

1K
2.2u

Other LiIon battery powered application

VCC
10K

10K

SCL

BAT4 OZ26305

CHG

CHG

DSG

DSG

2.2nF

10K

2.2nF

10K

BAT3
2.2nF

10K 2.2nF

SDA

BAT5

DFN12

BAT2

VPP

BAT1

VSS

1K~10K

2.2nF

PACK-

Homepage21

OZ2605
FEATURES
 High Accuracy Over-Voltage (OV) Protection➢ OV:

3.925 V to 4.720 V, 5mV/step➢ OV hysteresis (VHYS):

Accuracy: ±25 mV (25°C) , ±30 mV (0 to 60°C)

0 to 300 mV, 100mV/step➢ Internal OV delay timer (TOVP): 1 to 4 seconds

1s/step

 Over-Voltage (OV) fuse burn signal
 Wide operating voltage range: 4 to 25 V Wide operating temperature range: -40 to 85°C
 Stackable for 6 or more series cell applications
 Low Power Consumption (IVCC + IBAT5)➢ 0.7 μA (Typical), 1.5 μA (Maximum)(All VCELL = 3.5 V and -40 to 85°C)➢ 0 μA (Typical), 0.3 μA (Maximum)(All VCELL = 2.4 V and -40 to 85°C)

GENERAL DESCRIPTIONOZ2605 is a stackable Over-Voltage (OV) protection IC for 1-cell, 2-cell, 3-cell, 4-cell or 5-cell Li-ion
battery packs.
OZ2605 incorporates a precise and accurate voltage detection circuit with preconfigured over-voltage
threshold limits and an internal delay circuit for over-voltage detection time. If an OV event occurs,
OZ2605 protects the battery pack by driving an output pin high to blow a fuse or activate a MOSFET.
OZ2605 consumes very little current. Current consumption decreases even further when cell voltage islow, extending battery shelf life.

APPLICATIONS•

Ultrabook PC / Notebook PC / Tablet PC•

Camcorder•

Power Tools

APPLICATION DIAGRAM
PACK+
RVC
Fuse
CVC
RF5

VCC
CF5

RF4

OV

BAT5

VSS

OZ2605
CF4

RF3

BAT4

BAT1

BAT3

BAT2
MN1

CF3
RF2
CF2
RF1

R1
CF1

PACK-

Homepage22

OZ2608
FEATURES
 Protection for 5~8 LiIon/Polymer Cells in series
 Protection parameter field programming capability or preprogrammed in One-Time Programmable







(EFUSE) memory
Accurate Voltage Protection:➢ OV: 3.5V to 4.5V; 10mV/Step, Accuracy: ±15mV (typ)➢ UV: 1.2V~1.8V,200mV/step;1.8V~ 3.0V, 100mV/step Accuracy: ±35mV (typ)Supports window based charge permission function
Cell-Tap-Open Detection (CTO)
Cell tap filter Resistor (RF): 10KΩ
Ultra-low current consumption 0.9uA (Typ.)

GENERAL DESCRIPTIONOZ2608 is a highly integrated, cost-competitive battery protection IC that monitors 5~8 cell Li-Ion/Polymer
battery packs used in power tools, home appliance and other battery powered applications.
OZ2608 integrates a safety engine to perform high accuracy battery protection: OV and UV (optional)
When any safety event occurs, either CHG or DSG output will be in OFF state. One default setting isprovided in Protection State and DSG, CHG Output Summary Table. To meet different application
requirements, the output type definition (Open drain or CMOS, active high or active low) of CHG and DSG
are set as user parameters in the EFUSE.
OZ2608 also provides Cell-Tap-Open (CTO) detection. When this event occurs, OZ2608 will set both
CHG and DSG in Off-state for fault alert.
OZ2608 provides 2 types of outputs on its CHG and DSG: CMOS and Open-drain. The output typeshould be specified as ordering information.

APPLICATIONS••••APPLICATION DIAGRAM

Vacuum Cleaners

PACK+

Power Tools

510

Home Appliance

2.2u

10K

BAT8
0.1u

10K

Other LiIon battery powered application

10K

0.1u

VCC

BAT7

SDA

BAT6

SCL

0.1u

10K

0.1u

10K

BAT5 OZ2608
BAT4

DFN14

0.1u

10K

0.1u

BAT2

CHG

DSG

DSG

VPP

BAT3
10K

CHG

VSS

BAT1

1K~10K

10K 0.1u
0.1u

PACK-

Homepage23

OZ2610FEATURES OV/UV Protection for 5~10 Li-Ion Series Cells
 Protection parameter field programming capability or preprogrammed in One-Time Programmable







(EFUSE) memory
Accurate Voltage Protection:➢ OV: 3.5V to 4.5V,10mV/Step; Accuracy: ±15mV (Typ)➢UV (optional): 1.2V~1.8V, 200mV/step;1.8V~ 3.0V, 100mV/step; Accuracy: ±35mV (Typ)Cell -Tap-Open Detection (CTO) (Optional)
Cell tap filter Resistor (RF): 10KΩ
Random Cell connection support
Ultra-low current consumption 1uA (Typ.)

GENERAL DESCRIPTIONOZ2610 is a highly integrated, cost-effective battery protection IC that monitors 5~10 cell Li-Ion/Polymer
battery packs used in power tools, home appliances and other battery powered applications.
OZ2610 integrates a safety engine to perform high accuracy battery protection: OV and UV (optional)
When any safety event occurs, either CHG or DSG output state will be changed. One default setting isprovided in Protection State and DSG, CHG Output Summary Table.
To meet different application requirements, the output type definition (Open-drain or push-pull, active highor active low) of CHG and DSG are set as user parameters in the EFUSE.
OZ2610 also provides Cell-Tap-Open (CTO) detection. When this event occurs, OZ2610 will set both
CHG and DSG in Off-state for fault alert.

APPLICATIONS••••APPLICATION DIAGRAM

Vacuum Cleaners
PACK+

Power Tools, Garden Tools
Home Appliance
VSS

Other LiIon battery powered application

2.2uF

510

VCC

CHG

CHG

BAT10

DSG

DSG

10K

OZ2610

1nF

10K

BAT9
1nF

10K

10K

VPP

10K

BAT6

BAT1

BAT5

BAT2

BAT4

BAT3

1nF
1nF

10K

10K

SCL

BAT7
1nF

10K

10K

BAT8
1nF

10K

10K

SDA

ESOP

1nF
1nF

1nF
1nF

PACK-

Homepage24

OZ3705
FEATURES
 Low cost DFE for 3 to 5 cell Li-Ion battery packs➢

Cell Voltage measurements➢

Current Sense input with amplifier➢

External Temperature measurements➢

Die Temperature measurement and OHTP 12 bit Analog-to-Digital Converter (ADC) I2C BUS communication (up to 400 kHz) Cell balance controlled from host by I2C 3.3 V LDO for microcontroller supply
 Selectable thresholds for discharge over-current fault notification
 Low power consumption

GENERAL DESCRIPTIONOZ3705 integrates an Analog Front End (AFE) with a 12-Bits Analog-to-Digital Converter (ADC) creatinga DFE to improve accuracy and reduce cost of battery management for applications with 3 to 5 cells inseries.
OZ3705 supports cell voltages, pack temperature, pack current measurement. It also integrates fast
discharge over-current detection and host notification, cell balance, die temperature measurement withover-heat protection.
The integrated 3.3 V LDO supplies up to 3 mA. A second LDO (VDDA) supplies 5V at up to 0.2 mA forinternal circuitry.
Through I2C BUS the host MCU is able to read any cell voltage between 1.5 and 5 V. Read time is ~ 350
μs, including channel selection, ADC conversion, and I2C communication at 400 kHz.

APPLICATIONSAPPLICATION DIAGRAM
PACK+

•

Cordless Power Tools / Appliances / Battery packs

VCC
BAT5

•

V3.3V

Chargers
BAT4

OZ3705

SDA
SCLK

BAT3
INT#

BAT2
VDDA
VREF
BAT1
THM

VSS
ISN

ISP

PACK-

Homepage25

OZ9358
FEATURES Analog Front End (AFE) for 3-8 Cell Li-ion/Polymer/FePO4 battery pack➢

High precision voltage measurement: 8 inputs and an analog signal output (VOUT)
Typical accuracy:<±30mV (initial),<±10mV (calibrated) ; Setting time： up to 500µs

 16-bit ∆ ADC for high precision current measurement and Coulomb counting
 Simultaneous Multi-Cell Balance Support : Up to 13mA and controlled from host by I2C
 Permanent Failure（PF）function➢ Permanent Failure voltage (VPF) Threshold: VPF = 3700 ~ 4400 mV, 25mV/step Discharge Over Current interrupt output➢ DOC: VDOC = 20 ~ 160 mV, 10 mV/step; SC: VSC = 40 ~ 340 mV, 20 mV/step Internal Over-Temperature Protection
 I2C BUS communication (up to 400 kHz) Interrupt output to external Host
 3.3 V/5V selectable LDO for microcontroller supply; up to 30 mA
 Low Power Consumption➢

Active :90/180µA (Typ)Standby: 5µA /9µA (Typ)

Shutdown: 1.2µA (Typ)GENERAL DESCRIPTIONOZ9358 is a cost effective, advanced Analog Front End (AFE) IC to support 3 to 8 serial cells battery
powered applications.
OZ9358 is designed to scale and level-shift cell voltages down to ground-referenced analog signal output(VOUT) for the Analog to Digital (A/D) converter of a host MCU.
OZ9358 integrates a low power 16-bit Sigma Delta () ADC for accurate pack current measurement andCoulomb-Counting. DOC and SC are performed by individual analog comparators for quick response
output from INT#. Activates INT# pin to notify the host microcontroller of a battery anomaly event.
OZ9358 integrates a standalone safety engine to perform individual cell abnormal over voltage for safety
certification activating from PF pin. OZ9358 integrates Internal Over-Temperature protection to prevent
itself from over-heating.
Internal Cell-Balance switches can be controlled by an external host to perform Cell-Balancing.
An external host communicates with OZ9358 via I2C Bus with Cyclic Redundancy Check (CRC) for
maximum reliability.

APPLICATIONS••••APPLICATION DIAGRAM
PACK+

Fuse

Vacuum Cleaner or other Home Appliance51
Switch - wake up

Energy Storage System/UPS

2.2u
10K
WKUP

VCC

E-Bike, E-scooter

0.1u

1K
BAT8

Garden Tool, Power Tool

1K

PF

0.022uBAT7
0.022uVMCU
4.7u

OZ9358

1K
BAT2

2.2u

Homepage

0.022u
VSS
ISP
0.1u
0.1u

SDA

SDA

INT#

GPIO2

MCU

VOUT

100

2.2u

GPIO1
0.1u

100

100

VDD

SCL

SCLK

VSS

0.1u
ISN

26

4.7K

BAT1

4.7K

0.022u

4.7K

1K

VDD

RSENSEPACK-OZ3710FEATURES
 Low cost DFE for 5 to 10 cell Li-Ion battery packs➢

Cell Voltage measurements➢

Current Sense input with amplifier➢

External Temperature measurements➢

Die Temperature measurement and OHTP 12 bit Analog-to-Digital Converter (ADC) I2C BUS communication (up to 400 kHz) Cell balance controlled from host by I2C 3.3 V LDO for microcontroller supply: 7mA
 Selectable thresholds for discharge over-current fault notification
 Low power consumption

GENERAL DESCRIPTIONOZ3710 integrates an Analog Front End (AFE) with a 12-Bits Analog-to-Digital Converter (ADC) creatinga DFE to improve accuracy and reduce cost of battery management for applications with 5 to 10 cells inseries.
OZ3710 supports cell voltages, pack temperature, pack current measurement. It also integrates fast
discharge over-current detection, cell balance and die temperature measurement with over-heatprotection.
The integrated 3.3 V LDO supplies up to 7 mA. A second LDO (VDDA) supplies 5V at up to 0.2 mA forinternal circuitry.
Through I2C BUS the host MCU is able to read any cell voltage between 1.5 and 5 V. Read time is ~ 350
μs, including channel selection, ADC conversion, and I2C communication at 400 kHz.

E-Bikes, E-scooters•

Cordless Vacuum Cleaner•

Battery Powered Home Appliances

BAT10

LDO
SDA
SCLK
RESET#
INT#

VDDA
BAT1

AUX

VSS

THM2
THM1
ISN

BAT-

HomepageTo
Micorcontroller

VREF

OZ3710

ISP

•

VCC

Cordless Garden Tools

BATTERY•APPLICATION DIAGRAMBAT+APPLICATIONSTTRSENSE
PACK-

27

OZ3714FEATURES
 Highly accurate Digital Front End (DFE) with Embedded Protections➢

Voltage, Current & Temperature + Control

 14-bit Analog to Digital Converter (SAR ADC)➢High precision voltage measurement➢

Cell Voltage: 14 inputs, typical 5mV accuracy➢

Pack Current Sense➢

VBAT, VCC, VM, V5A and VMCU Voltage measurements➢

2 External Temperature inputs with 2 selectable precision current sources➢

1 Internal Temperature input

 16-bit Analog to Digital Converter (∆ ADC)➢High precision current measurement and Coulomb counting (support dead band setting) Protection➢

Over-Voltage Protection➢

Under-Voltage Protection (UVP)➢

Discharge Current ProtectionoDischarge-Over-Current 1 (DOC1):o

Discharge-Over-Current 2 (DOC2):o

Short-Circuit (SC): Cycle by cycle OC/SC protection in PWM mode➢

Charge Current Protection➢

Internal Die Over-Temperature Protection

 Simultaneous Multi-Cell Balance Support






Cell-Tap-Open (CTO) Detection Support
Integrated low-side CHG/DSG driver
I2C Bus Interface
Interrupt output to external Host
 Low Power Consumption➢ Active mode: < 120µA (typical)➢ Sleep mode: < 12µA (typical)➢ Shutdown mode: < 1.6µA (typical)

GENERAL DESCRIPTIONOZ3714 is a highly integrated, low cost, Digital Front End (DFE) IC with integrated CHG/DSG FET drivers
to support 7 to 14 serial cells in battery packs for high cell count battery powered applications.
OZ3714 integrates a 14-bit high precision Successive Approximation Register (SAR) Analog to Digital
Converter (ADC) for fast cell voltages, temperature and charge/discharge current measurement.
Additional high accuracy 16-bit Sigma Delta () ADC is integrated for precision current measurement andCoulomb-Counting.
OZ3714 integrates a simple, standalone safety engine that performs high accuracy and high reliability
protections for the safety events including OVP, UVP, COC, DOC (DOC1 and DOC2) and SC. OVP, UVP,
28

COC and DOC1 are fast SAR ADC based protection. DOC2 and SCP are performed by individual analog
comparators for quick response and any fault of them will turn off discharge NFET quickly by pulling DSG
low and activates ALERTN pin to notify the Host microcontroller of a safety event.
OZ3714 supports Cell Balance and Cell-Tap-Open (CTO) detection which can be controlled by an external
host.
OZ3714 integrates Internal Over-Temperature protection to prevent itself from over-heating during someextreme conditions..

APPLICATION DIAGRAMAPPLICATIONS•Garden Tools, Power Tools•

E-Bikes, E-scooters•

Vacuum cleaners•

Other battery powered home appliances

PACK+

51

0.1u

BAT14

VDD

0.1u
BAT13

SCL
SDA
ALERTN
EFETC

BAT12

510
BAT 1
0.1u
BAT0
0.1u

OZ3714(QFN32)

SCL
MCU
SDA
GPIO1
GPIO2
VSS

V5A

2.2u

4.7u

VREF

1u

THM0

103AT4

THM1

103AT4

1n

GNDA

1n

0.1u

100

4.7K

4.7K

2.2u

GNDD

510
510

4.7K

VMCU

VCC

ISP
0.1u
0.1u

CHG
0.1u

WKUP/VM
ISN

0.1u

DSG

100

100

2K

10M

18V

18V
RSENSE

PACKDSG

Homepage
29

1.2M

CHG

OZ37210
FEATURES
 Precision Digital Front End (DFE) with Protections➢

Voltage/Current/Temperature + Protections

 14-bit Analog to Digital Converter (SAR ADC)➢High precision voltage measurement➢

Cell Voltage: 10 inputs➢

Pack Current Sense➢

VBAT, VCC, VM, V5V and VMCU Voltage measurements➢

2 External Temperature inputs with 2 selectable precision current sources➢

1 Internal Temperature input

 16-bit Analog to Digital Converter (∆ ADC)➢High precision current measurement and Coulomb counting (dead band setting) Protections➢

Two Level Over-Voltage ProtectionsoOver-Voltage (VOV) Threshold:oSecondary Level Over-Voltage (VOV2) Threshold:➢

Under-Voltage Protection (UVP)➢

Discharge Current ProtectionoDischarge-Over-Current 1 (DOC1)o

Discharge-Over-Current 2 (DOC2)o

Short-Circuit (SC): Cycle by cycle OC/SC protection in PWM mode➢

Charge Current Protection➢

External Over-Temperature Protection (OTP) and Under-Temperature Protection (UTP)➢Internal Die Over-Temperature Protection

 Simultaneous Multi-Cell Balance Support






Cell-Tap-Open (CTO) Detection capable
Integrated low-side CHG/DSG drivers
I2C Communication Bus Interface
Alert and EFETC Interface to Host
 Low Power Consumption➢ Active mode: < 150µA➢ Sleep mode: <11µA➢ Shutdown mode: <1.8µA

GENERAL DESCRIPTIONOZ37210 is a highly integrated, low cost, Digital Front End (DFE) IC for 5 to 10 serial cells in battery packs
for high cell count battery powered applications.
OZ37210 integrates a 14-bit high precision Successive Approximation Register (SAR) Analog to Digital30

Converter (ADC) to perform fast measurement of cell voltages, temperature and charge/discharge current.
For Coulomb-Counting measurements OZ37210 uses a 16-bit Sigma Delta () ADC.
It integrates a standalone safety state machine to independently perform various protections including
OVP (OV1 and OV2), UVP, COC, DOC (DOC1 and DOC2), SC, OTP and UTP. OVP, UVP, COC, DOC1and OTP/UTP are fast SAR ADC based protection. DOC2 and SCP are performed by individual analog
comparators for quick response and any fault of them will turn off discharge NFET quickly by pulling DSG
low and activates ALERTN pin to notify the Host of a safety event.
OZ37210 supports Cell Balance and Cell-Tap-Open (CTO) detection which can be controlled by an
external host.
OZ37210 integrates Internal Over-Temperature protection to prevent itself from over-heating during someextreme conditions; for example, multiple cells balancing or high loads on VMCU.

APPLICATIONSAPPLICATION DIAGRAM•

Garden Tools, Power Tools•

E-Bikes, E-scooters•

Cordless Vacuum Cleaners•

Other Battery Powered home appliances

PACK+

51

4.7u

BAT10
200

4.7K

4.7K

4.7u

GNDD

4.7K

VMCU

VCC
200

VDD

0.1μF

BAT8

SCL
SDA
ALERTN/TRI
EFETC/PF

200
BAT 1
0.1μF
GNDA

OZ37210SCLSDA MCU
GPIO1
GPIO2
VSS

V5V

1u

THM0

103AT4

1n
ISP
0.1u

VCC
103AT4

THM1

0.1u

2K

2M

VM2/WKUP
CHG

0.1u

2.2u

4.7u

VREF

1n

BAT9
0.1μF

10n

VM
ISN

22n

DSG

2M

100

100

2K

10M

18V

18V
RSENSE

PACKDSG

Homepage

31

1.2M

CHG

OZ37220
FEATURES
 Highly accurate Digital Front End (DFE) with Protection and low side FETs Drivers
 14-bit Analog to Digital Converter (SAR ADC)➢High precision voltage measurement➢

Cell Voltage: 20 inputs➢

Pack Current Sense➢

VBAT, VCC, VM, VM2, V5A and VMCU Voltage measurements➢

4 External Temperature inputs with 2 selectable precision current sources➢

3 general purpose analog inputs➢

1 Internal Temperature input

 16-bit Analog to Digital Converter (∆ ADC)➢High precision current measurement and Coulomb counting Protections➢

Over-Voltage ProtectionoOver-Voltage (VOV1) Threshold (OV1)oOver-Voltage (VOV2) Threshold (OV2)➢

Under-Voltage Protection (UVP)➢

Discharge Current ProtectionoDischarge-Over-Current 1 (DOC1)o

Discharge-Over-Current 2 (DOC2)o

Short-Circuit (SC):➢Charge Current Protection (COC)➢

Charge Temperature Protection:

➢

➢

o

Charge-Over-Temperature (COT)oCharge-Under-Temperature (CUT)

Discharge Temperature Protection:oDischarge-Over-Temperature (DOT)oDischarge-Under-Temperature (DUT)

Internal Die Over-Temperature Protection

 Simultaneous Multi-Cell Balance Cell-Tap-Open (CTO) Detection
 I2C Communications Bus Interface
 Interrupt output to external Host
 Low Power Consumption (typical)➢ Active mode: < 90uA
➢ Sleep mode: < 10µA
➢ Shutdown mode: < 2uA

32

GENERAL DESCRIPTIONOZ37220 is a highly integrated, low cost, Digital Front End (DFE) IC for 10 to 20 serial cells in battery
packs for high cell count battery powered applications.
OZ37220 integrates a 14-bit high precision Successive Approximation Register (SAR) Analog to Digital
Converter (ADC) to detect cell voltages, temperature and charge/discharge current, etc. For
Coulomb-Counting measurements OZ37220 uses a 16-bit Sigma Delta () ADC.
OZ37220 integrates a simple, independent safety engine that performs high accuracy and high reliability
protections for the safety events including OV, OV2, UV, UV shutdown, unbalance, THM0~THM2’s
OT&UT,COC, DOC (DOC1 and DOC2) and SC. OV, OV2, UV, UV shutdown, unbalance, OT/UT, COC and
DOC1 are fast SAR ADC based protection. DOC2 and SC are performed by individual analog comparators
for quick response and any fault of them will turn off discharge NFET quickly by pulling DSG low andactivates INT pin to notify the Host of a safety event.
OZ37220 supports Cell Balance and Cell-Tap-Open (CTO) detection which can be controlled by an
external host.
External host communicates with OZ37220 via I2C Bus with Cyclic Redundancy Check for maximum
reliability.
OZ37220 integrates Internal Over-Temperature protection to prevent itself from over-heating during someextreme conditions; for example, multiple cells balancing or high loads on VMCU or MDRV

PACK+
100K

2K

ESS/UPS
Garden Tools, Power Tools

10n

0.1u

E-Bikes, E-Scooters

BAT20

MDRV
51

100

VCC
5.1K

100K

4.7u

LEV (Light Electric Vehicles)

WKUP/VM2

51
VBAT

•
•
•
•

APPLICATION DIAGRAM
2K/2512APPLICATIONSMicrocontroller
Power Supply

VMCU

2.2n
10n

GNDD
CHG_CTLDSG_CTL
PF
SCL
SDA
INT

10K
10K

To
Microcontroller

OZ37220

5.1K

BAT2
BAT1
BAT0

2.2n

100

103AT4103AT4103AT4103AT4
1n

1n T

1n
T

1n
T

T

ISP
ISN

2.2n

GNDA
VREF_SAR
VREF_SD
V5A
V5D

2.2n

10K/1%

TREF
THM0
THM1
THM2
THM3

5.1K

4.7u

CHG
VM
DSG

0.1u
2K

0.1u

0.1u

0.1u

1u
1u
4.7u

10M

18V

18V

1.2M

PACKDSGGNDD GNDA

Homepage
33

CHG

OZ37210DWFEATURES
 Precision Digital Front End (DFE) with Protections➢

Voltage/Current/Temperature + Protections

 14-bit Analog to Digital Converter (SAR ADC)➢High precision voltage measurement➢

Cell Voltage: 10 inputs➢

Pack Current Sense➢

VBAT, VCC, VM, V5V and VMCU Voltage measurements➢

2 External Temperature inputs with 2 selectable precision current sources➢

1 Internal Temperature input

 16-bit Analog to Digital Converter (∆ ADC)➢High precision current measurement and Coulomb counting (dead band setting) Protections➢

Two Level Over-Voltage ProtectionsoOver-Voltage (VOV) Threshold:oSecondary Level Over-Voltage (VOV2) Threshold:➢

Under-Voltage Protection (UVP)➢

Discharge Current ProtectionoDischarge-Over-Current 1 (DOC1)o

Discharge-Over-Current 2 (DOC2)o

Short-Circuit (SC)➢Charge Current Protection➢

External Over-Temperature Protection (OTP) and Under-Temperature Protection (UTP)➢Internal Die Over-Temperature Protection

 Dual Drivers for High Side CHG/DSG NFETs➢

Fast FET Turn-ON time;➢

Very fast FET Turn-OFF time Simultaneous Multi-Cell Balance Support

 Cell-Tap-Open (CTO) Detection capable I2C Communication Bus Interface
 Alert and EFETC Interface to Host
 Low Power Consumption➢ Active mode: <150µA➢ Sleep mode: <12µA➢ Shutdown mode: <1.8µA

GENERAL DESCRIPTIONOZ37210DW is a highly integrated, low cost, Digital Front End (DFE) IC for 5 to 10 serial cells in battery
packs for high cell count battery powered applications.
34

OZ37210DW integrates a 14-bit high precision Successive Approximation Register (SAR) Analog to
Digital Converter (ADC) to perform fast measurement of cell voltages, temperature and charge/discharge
current. For Coulomb-Counting measurements OZ37210DW uses a 16-bit Sigma Delta ()ADC.
It integrates two charge pumps for high side NFET driver application. It integrates a standalone safety statemachine to independently perform various protections including OVP (OV1 and OV2), UVP, COC, DOC(DOC1 and DOC2), SC, OTP and UTP. OVP, UVP, COC, DOC1 and OTP/UTP are fast SAR ADC based
protection. DOC2 and SCP are performed by individual analog comparators for quick response and any
fault of them will turn off discharge NFET quickly by pulling DSG low and activates ALERTN pin to notify
the Host of a safety event.
OZ37210DW supports Cell Balance and Cell-Tap-Open (CTO) detection which can be controlled by an
external host.
OZ37210DW integrates Internal Over-Temperature protection to prevent itself from over-heating duringsome extreme conditions; for example, multiple cells balancing or high loads on VMCU.

APPLICATIONS

2M

Garden Tools, Power Tools
PACK+

Fuse

E-Bikes, E-scooters
10M

15V

CHG

DSG

15V

2K

10M

Cordless Vacuum Cleaners

22n

PF

VM

DRAIN

SOURCE2

VCC
51V

GATE1

51

GATE2

4.7u

SOURCE1

Other Battery Powered Home Appliances

VM2/WKUP

2K

IN2

CHG_LV

10n
BAT9
BAT8

GNDD
2K
BAT 1
10n

100

BAT0

OZ37210DW

4.7u

VDD
SCL
SDA
ALERTN/TRI
EFETC

SCL
SDA MCU
GPIO1
GPIO2
VSS

10n
ISP
0.1u
0.1u

EN
V5V

4.7u

VREF

1u

THM0

0.1u

103AT4

THM1

103AT4100
RSENSE

Homepage
35

100

1n

ISN

1n

GNDA

4.7K

10n

VMCU

4.7K

2K

DSG_LV

IN1
BAT10

4.7K

•
•
•
•

APPLICATION DIAGRAM

PACK-

2.2u

OZ7717
FEATURES
 Highly accurate Digital Front End (DFE) with High Side Driver➢

Voltage, Current & Temperature + Control

 14-bit Analog to Digital Converter (SAR ADC)➢High precision voltage measurement➢

Cell Voltage: 17 inputs, typical 5mV accuracy➢

Pack Current Sense➢

VPACK, VBAT, V5 and VMCU Voltage measurements➢

5 External Temperature inputs with
2 selectable precision current sources➢

1 Internal Temperature input➢

1 Auxiliary; Direct ADC input

 16-bit Analog to Digital Converter (∆ ADC)➢High precision current measurement and Coulomb Counting (CC) High Side MOSFET drivers (Chg/Dsg)➢

Compatible with 15V to 75V battery packs➢

Hot-swap packs safely, soft start and charge management with Linear-Mode FET control➢

Strong drive ability

 Protections➢

Over-Voltage Protection➢

Discharge Current ProtectionoDischarge-Over-Current 1 (DOC1):o

Discharge-Over-Current 2 (DOC2):o

Short-Circuit (SC):➢Charge Current Protection➢

Internal Die Over-Temperature Protection

 Simultaneous Multi-Cell Balance Cell-Tap-Open (CTO) Detection SPI Serial Communications Bus Interface
 Low Power Consumption➢ Active mode: < 150uA (Without CC)➢ Standby mode: < 12uA
➢ Shutdown mode: < 1uA

GENERAL DESCRIPTIONOZ7717 is a highly integrated, low cost, Digital Front End (DFE) IC for 10 to 17 serial cells in battery packs
for high cell count and battery powered applications. OZ7717 integrates a 14-bit high precision Successive
Approximation (SAR) Analog to Digital Converter (ADC) to detect cell voltages, temperature andcharge/discharge current. For Coulomb-Counting measurements OZ7717 uses a 16-bit Sigma-Delta ()36

current ADC.
It integrates a simple, standalone safety engine that performs high accuracy and high reliability protections
for safety events including OV, COC, DOC (DOC1 and DOC2), SC and optional UV; INT pin will be
activated to notify the Host microcontroller of a safety event. External Host (Microcontroller) could performthe release from those protection states.
OZ7717 integrates a charge-pump circuit to drive high-side N-channel charge and discharge MOSFETs
with strong driving capability for fast response. It also provides a linear mode control for either charge FETor discharge FET to enable automatic balancing and hot swapping for multiple battery packs.
OZ7717 supports Cell Balance and Cell-Tap-Open (CTO) detection which can be controlled by an external
host.
OZ7717 integrates Internal Over-Temperature protection to prevent itself from over-heating during
extreme conditions.

APPLICATIONS

100

100K

15V

1u

51
0.1u

E-Bikes, E-Scooters, Pedelec and Pedal-Assist

10n

48

47
46
45
44
43
42
CHG
VCP
VCM
DSG
VPACK
WKUP

1n
51

Bicycles

4.7u

LEV (Light Electric Vehicles)

120
0.1u

120
0.1u

120
0.1u

120

2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19

MDRV

BAT17
BAT16
BAT15
BAT14
BAT13
BAT12
BAT11
BAT10
BAT9
BAT8
BAT7
BAT6
BAT5
BAT4
BAT3
BAT2
BAT1
BAT0

20
21

ISP
ISN

0.1u

VCC

4.7n
390K
COMP

VMCU
GNDD
WDT
EFETC
INT
SCK
SDI
SDO
CSN

OZ7717

AUX
THM4
THM3
THM2
THM1
THM0

GNDA
VREF
V5

1

22
23
24

•

PACK+

4.7M

Garden Tools, Power Tools

15V

4.7M

ESS/UPS

VBAT

•
•
•

APPLICATION DIAGRAM

41
38
100

37
36

10n

Microcontroller
Power Supply

100K

4.7u

40
39
35
34
33
32
31

To or From
Microcontroller

30
29
28
27
26
25
1n

1n

1n

1n

1n

T

T

T

T

T

103AT4103AT4103AT4103AT4103AT4

10n
0.1u

0.1u

0.1u

4.7u

PACKGNDD GNDA

Homepage37

OZ3717
FEATURES
 Highly accurate Digital Front End (DFE) with High Side Driver➢

Voltage, Current & Temperature + Control

 14-bit Analog to Digital Converter (SAR ADC)➢High precision voltage measurement➢

Cell Voltage: 17 inputs, typical 5mV accuracy➢

Pack Current Sense➢

VPACK, VBAT, V5 and VMCU Voltage measurements➢

3 External Temperature inputs with
2 selectable precision current sources➢

1 Internal Temperature input➢

1 Auxiliary; Direct ADC input

 16-bit Analog to Digital Converter (∆ ADC)➢High precision current measurement and Coulomb Counting (CC) High Side MOSFET drivers (Chg/Dsg)➢

Compatible with 15V to 75V battery packs➢

Hot-swap packs safely, soft start and charge management with Linear-Mode FET control➢

Strong drive ability

 Protections➢

Over-Voltage Protection➢

Discharge Current ProtectionoDischarge-Over-Current 1 (DOC1):o

Discharge-Over-Current 2 (DOC2):o

Short-Circuit (SC):➢Charge Current Protection➢

Internal Die Over-Temperature Protection

 Simultaneous Multi-Cell Balance Cell-Tap-Open (CTO) Detection SPI Serial Communications Bus Interface
 Low Power Consumption➢ Active mode: < 150uA (Without CC)➢ Standby mode: < 12uA
➢ Shutdown mode: < 1uA

GENERAL DESCRIPTIONOZ3717 is a highly integrated, low cost, Digital Front End (DFE) IC for 10 to 17 serial cells in battery packs
for high cell count and battery powered applications. OZ3717 integrates a 14-bit high precision Successive
Approximation (SAR) Analog to Digital Converter (ADC) to detect cell voltages, temperature andcharge/discharge current. For Coulomb-Counting measurements OZ3717 uses a 16-bit Sigma-Delta ()current ADC.
38

It integrates a simple, standalone safety engine that performs high accuracy and high reliability protections
for safety events including OV, COC, DOC (DOC1 and DOC2), SC and optional UV; INT pin will be
activated to notify the Host microcontroller of a safety event. External Host (Microcontroller) could performthe release from those protection states.
OZ3717 integrates a charge-pump circuit to drive high-side N-channel charge and discharge MOSFETs
with strong driving capability for fast response. It also provides a linear mode control for either charge FETor discharge FET to enable automatic balancing and hot swapping for multiple battery packs.
OZ3717 supports Cell Balance and Cell-Tap-Open (CTO) detection which can be controlled by an external
host.
OZ3717 integrates Internal Over-Temperature protection to prevent itself from over-heating during
extreme conditions.

APPLICATIONS

100K

4.7M

15V

1u

51
0.1u

E-Bikes, E-Scooters, Pedelec and Pedal-Assist

10n

48

47
46
45
44
43
42
CHG
VCP
VCM
DSG
VPACK
WKUP

1n
51

Bicycles

4.7u

LEV (Light Electric Vehicles)

120
0.1u

120
0.1u

120

MDRV

BAT12
BAT11
BAT10
BAT9
BAT8
BAT7
BAT6
BAT5
BAT4
BAT3
BAT2
BAT1
BAT0

20
21

0.1u

4.7n
390K
COMP

BAT17
BAT16
BAT15
BAT14
BAT13

ISP
ISN

0.1u

120

2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19

VCC

VMCU
GNDD
WDT
EFETC
INT
SCK
SDI
SDO
CSN

OZ3717

AUX
NC
NC
THM2
THM1
THM0
GNDA
VREF
V5

1

22
23
24

•

PACK+
100

Garden Tools, Power Tools

15V

4.7M

ESS/UPS

VBAT

•
•
•

APPLICATION DIAGRAM

41
38
100

37
36

10n

Microcontroller
Power Supply

100K

4.7u

40
39
35
34
33
32
31

To or From
Microcontroller

30
29
28
27
26
25
1n

1n

1n

T

T

T

103AT4103AT4103AT4

10n
0.1u

0.1u

0.1u

4.7u

PACKGNDD GNDA

Homepage39

OZ9212FEATURES
 Dual-Input LDO power with priority management
 Fixed 3.3V output accuracy: ± 2% Accuracy

3.234V～3.366V

 Output Current Range: ≤ 30mA
 Wide operating voltage range:

4.5 to 50 V Wide operating temperature range: -40 to 85°CProtection:➢

Over-Current Fold-Back➢

Thermal Shutdown (Die Over-Temperature)➢

Under Voltage Lockout (UVLO)

 Fast Transient ResponsePower-Good Output - Open Drain

Low Power Consumption

Active Mode Quiescent Current: 5 uA(Typ); Shutdown mode: 0.4 uA (Typ)GENERAL DESCRIPTIONOZ9212 is a dual-input Low Dropout (LDO) Voltage Regulator with priority setting and Power Good
output.
OZ9212 incorporates dual-inputs; IN1 and IN2, but IN2 has higher priority.
•••

When IN2 voltage is present (VIN2 ≥ 4.5V), OZ9212 will be enabled automatically, and 3.3V output is powered by
VIN2.
When IN2 voltage is not present but IN1 voltage (VIN2 ≥ 7V) is present, OZ9212 is enabled by high input of the EN
pin.
When both IN2 voltage and IN1 voltage are present, the 3.3V output will be supplied by V IN2.

OZ9212 provides an open-drain PG (Power Good) output signal, indicating that the 3.3V output is within
the normal range.
To prevent IC output circuit damage OZ9212 provides Over-Current Fold-Back to ensure safe operation
during load fault conditions.
Similarly, an Under Voltage condition may result in incorrect IC operation, possibly including the output
voltage dropping below 3.3V. OZ9212 protects itself and the load circuits by shutting down using Under
Voltage Lockout protection circuitry.
OZ9212 provides fast transient response with excellent line and load transient performance.

APPLICATIONS•Power Tools•

Power supplies for mobile devices

APPLICATION DIAGRAM
D1

IN1
EN

IN1

IN2

EN

NC

NC
VSS

C1
10µ F

Homepage
40

OZ9212R1 100k

PG
OUT

C34.7µ F

C2
10µ F

IN2

OZ9211Q
FEATURES Fixed 5.0V or 3.3V output accuracy: ± 1%
 Output Current Range:

Accuracy:

5.05V～4.95V or 3.267V~3.333V≤ 150mA Wide operating voltage range:

5.5 to 40 V Wide operating temperature range: -40 to 105°C
 Protection:➢

Short circuit protection➢

Thermal Shutdown (Die Over-Temperature)➢

Under Voltage Lockout (UVLO)

 Fast Transient Response Power-Good Output - Open Drain

 Low Power Consumption

Quiescent Current:165 uA(Typ); Shutdown mode: 2.0 uA (Typ)GENERAL DESCRIPTIONOZ9211Q is a high voltage Low Dropout (LDO) Voltage Regulator with only 16μA (typ.) low power
consumption at no load. It is suitable for power supplies for microprocessor for automotive, portabledevice.
OZ9211Q provides an open-drain PG (Power Good) output signal, indicating that the output is within thenormal range.
To prevent IC output circuit damage OZ9211Q provides short-circuit protection to ensure safe operation
during load fault conditions.
Similarly, an Under Voltage condition may result in incorrect IC operation, possibly including the output
voltage dropping below 5.0V. OZ9211Q protects itself and the load circuits by shutting down using Under
Voltage Lockout protection circuitry.
OZ9211Q provides fast transient response with excellent line and load transient performance.
OZ9211Q operates in the -40°C to 105°C temperature range.

APPLICATIONS•Power Tools•

Power supplies for mobile devices•

Power supplies for automotive

APPLICATION DIAGRAM
IN

VIN

EN

C1
10µF

Homepage
41

OUT

EN

NC

OZ9211Q
NC

PG

NC

VSS

R1 100k
C2
4.7µF

OZ9202
FEATURES
 Enables independent control of dual high-side N-MOSFET drivers for battery protection applications
 Compatible with 20V to 48V battery packs
 Low power control interface:➢

3.3V and 5V compatible, ground referenced➢

CMOS compatible➢

Five low side control/monitor pinso

Two logical inputs for individual switching of high-side N-MOSFETs with low-side signalsoOne logical input is FETs enable pin.

o

Two logical outputs indicate FET status

 Fast FET Turn-ON time; Very fast FET Turn-OFF time Very few external components
 Very low power consumption➢ < 1 μA with both FET drivers off➢ < 20 μA with both FET drivers on

GENERAL DESCRIPTION
OZ9202 enables a microcontroller to directly control dual high-side NMOSFETs in battery protection
applications. It is suitable for protection circuits used in battery packs for power tools, appliances,
Cordless Vacuum Cleaners, and other applications.
The control section of OZ9202 is typically powered from a 3.3V supply. Three low-voltage,
ground-referenced CMOS compatible logic inputs enable individual control of each FET driver, as well as
and enable pin with the ability to switch on or off both FET drivers simultaneously.
Additionally, the two Power FET’s gate status is reported on two CMOS compatible logic outputs.
OZ9202 is built using a high-voltage process enabling two independent charge-pumps for generation ofhigh-side FET control for up to 48V battery packs. The SOURCE, GATE, and DRAIN pins are able towithstand up to 80V, referenced to ground.

APPLICATIONSAPPLICATION DIAGRAM
FET1
BAT+

•

Battery Packs for Cordless Vacuum Cleaners•

Power Bank•

Other Battery Powered Home Appliances

PACK+

3V~5V

VCC
GPIO1

Controller

GPIO1
GPIO2
GPIO3
GPIO4
GND

Homepage
42

FET2

16

1

15

2

14

3

13

4

12

5

11

6

10

7

9

8

NC

NC

VCC

SOURCE1STATUS1
IN1
EN

OZ9202IN2STATUS2
GND

GATE1
NC
DRAIN
NC
GATE2
SOURCE2

16
15
14
13
12
11
10
9

OZ9222FEATURES













Fast ON/OFF high-side N-channel MOSFET drivers➢

FET turn-on time (Ciss=25nF, < 20us)➢

FET turn-off time (Ciss=25nF, < 35us)

Independent digital control for charge FET and discharge FET
Integrates pre-charge FET control
Scalable external capacitor-based charge pump to accommodate different numbers of FETs inparallelWide battery voltage range: 8~90 V and High-voltage tolerance (120V absolute maximum rating)Integrates Short-Circuit (SC) protection
Integrates Load-off and Charge-in detection
Integrates charge pump state indicator
Direct Microcontroller control inputs: 3.3V and 5V compatible, ground referenced
Control Inputs CMOS level compatible
Low power consumption➢

Charge and discharge FETs ON:
40uA (Typical)➢

Charge and discharge FETs OFF:6uA

(Typical)Green Package SSOP16

GENERAL DESCRIPTIONOZ2605 is a stackable Over-Voltage (OV) protection IC for 1-cell, 2-cell, 3-cell, 4-cell or 5-cell Li-ion
battery packs.
OZ2605 incorporates a precise and accurate voltage detection circuit with preconfigured over-voltage
threshold limits and an internal delay circuit for over-voltage detection time. If an OV event occurs,
OZ2605 protects the battery pack by driving an output pin high to blow a fuse or activate a MOSFET.
OZ2605 consumes very little current. Current consumption decreases even further when cell voltage islow, extending battery shelf conditions.

APPLICATIONS•Power tools, E-Bikes•

UPS, ESS, LEVs

APPLICATION DIAGRAM
Pre-charge
FET

ChargeFET

CHG+

Discharge
FET

PACK+

OZ9222HomepageTo
Microcontroller

Battery

PRE_ENAVCC
CHG_IN
CHG_ENA
CP_ENA

PRE_CD
VBAT
CHG
VCP
VCM

DSG_ENA

CP_STA

SCP_STA

DSG

VSS

VPACK

To
Microcontroller
PACK-

43

OZ85211/12
FEATURES

















Built-in Seamless Buck-Boost Transition to comply with the USB Power Delivery Specification
conjunct with a USB PD Controller:
Wide Vin: 3.8V to 24V
Programmable constant output voltage: 3V to 24V with 6mV step
Programmable constant output current up to 9.8A with 9.6mA (typical) step
Programmable constant output power up to 65W with 1W (typical) step
Programmable Switching Frequency from 200kHz to 1MHz by external resistor or by synchronized
input
Controlled Slew Rate Voltage and Current Transitioning
Built-in 2 Low Side Power NFETs
Integrated cable compensation up to 120mΩ, IRC
I2C Interface
OTG for OZ85211
Built-in Charge Pump for driving cost-effective NFET as the power channel control
Hardware and Firmware-based Protections: OVP, UVP, OCP, SCP and IOTP with adjustable
threshold and debounce time
Shutdown Current is less than 5μA
AEC-Q100
Package: QFN32 OZ85211; QFN24 OZ85212

GENERAL DESCRIPTION
OZ85211/12 is a USB PD power profile capable synchronous Buck-Boost converter optimized forconverting 1-5 cell battery voltage or adaptor voltage with two integrated low side MOSFETs.
In addition, OZ85211/12 features a programmable soft-start function and offers protection features
including cycle-by-cycle current limiting, input and output voltage and current protection by both hardware
designing and firmware setting, and thermal shutdown, features optional driver capacity to improve EMI
performance.

APPLICATIONS••APPLICATION DIAGRAM
65W PD Solution

Battery Powered Systems
3.8V~24V

Car Chargers

VBAT

option
Rcs2

Rcs1
OTG=0
HDR1

CVI N

•

PPS: 3.3V~21V
Max：65W

OTG=1

VBUS

VOUT
Q3

CO

Q2

Q1

CO2

VBUS

Q4

CVBUS1

Lm1

USB Power Delivery

Type-C
Receptacle 1
ASP

ASN

HD1

HD2

ISP

ISN CFET
NDRG

VBUS

Dual ports Type-C PD & Buck-Boost controller
ARM cortex-M0 MCU with EEPROM

I2C

Homepage
44

INT

PD Controller

CC1/CC2
DP/DN

OZ85211

OZ85412/13
FEATURES
 Highly integrated Buck-Boost converter with embedded USB PD (Power Delivery) controller
 Optional USB PD Dual Ports Support forOZ85413
 Supports latest USB PD 3.1 specification, BC1.2
 Support Full PPS (Programmable Power Supply) with range from 3.3V to 21.0V; Built-in ConstantVoltage (CV), Constant Current (CC) and Constant Power (CP) control loop for high resolution(6mV/step; 9.6mA/step) Built-in Seamless Transition Among Buck, Buck-Boost and Boost Operations:➢

3.8V to 24V Input Operating Voltage，Output: 3.3V~21V with Max 65W power➢

Maximum output current up to 5A with 9.6mA (typical) step➢

Programmable Switching Frequency, it can be set from 200KHz to 2.2MHz by external Resistor or synchronized by external
input clock➢

Built-in VBUS/VOUT Fast Discharge circuit➢

Built-in 2 Low Side Power NFETs with low RDSON and 2 Boost Drivers for High Side NFETs➢

Supports OTG(On-The-Go) Function

Built-in 32-bit MCU subsystem:➢

ARM Cortex M0 MCU➢

16K bytes boot ROM with ROM-API➢

64K bytes EEPROM➢

12K bytes SRAM



In-System Programming or In-Application Programming by I2C, UART

Built-in Cable Compensation algorithm

Safety function includes Over-Voltage Protection (OVP); Input Under Voltage Lockout (UVLO);
Over-Temperature Protection (OTP); Over-Current Protection (OCP), and Short-Circuit Protection(SCP) with adjustable threshold

Shutdown Current is less than 1μA



AEC-Q100

Package: QFN48 OZ85413; QFN40 OZ85412

GENERAL DESCRIPTIONThe OZ85412/13 is an automotive AEC-Q100 certified controller with highly integrated USB Type-C PD
and Buck-Boost. The OZ85412/13 contains Cortex-M0 MCU, It can supports PD3.1 protocol
specifications, compatible with BC1.2 and third-party proprietary communication protocols; This chip can
intelligently realize boost, buck, and Buck-Boost according to input voltage and output voltage; This IC
integrates independent Hardware based protections with adjustable thresholds and firmware-based45

protections to enable higher safety standard for reliable system application The OZ85412/13 integrates
dual low-side power MOSFETs with minimal peripheral components and simple PCB layout, providing an
excellent solution for USB PD applications.

APPLICATIONSAPPLICATION DIAGRAM•

Automotive USB Type-C Power Delivery charger•

Car charger

65W PD solution
OTG=1

3.8V~24V

option
Rcs2

Rcs1

VBAT

PPS: 3.3V~21V
Max：65W

OTG=0
HDR1

CVIN

VBUS

VOUT
Q3
CO

Q2

Q1

VBUS

Q4

CO2

CVBUS1

Lm1

Type-C
Receptacle 1
ASP

ASN

HD1

HD2

ISP

ISN
NDRG
VBUS

Dual ports Type-C PD & Buck-Boost controller
ARM cortex-M0 MCU with EEPROM

CC1/CC2

CC1/CC2

DP/DN

DP/DN

OZ8541265W+65W USB-PD Dual C Solution
OT G=1

3.8V~24V

option
Rcs2

Rcs1

VBAT

HDR1

VBUS1

VOUT1

OT G=0C VI NPPS: 3.3V~21V
Max：65W

Q3
CO

Q2

Q1

VBUS

Q4

CO2

CVB US1

Lm1

Ty pe-C
Receptacle 1
ASP

ASN

HD1

HD2

ISP

ISN

NDRG_P1
VBUS1

CC1/CC2

CC1/CC2_P2

I2C(Master)

GPIO

DP/DN

DP/DN_P1

OZ85413INT

CC1/CC2

CC1/CC2_P1

Dual ports Type-C PD & Buck-Boost controller
ARM cortex-M0 MCU with EEPROM

DP/DN

DP/DN_P2

NDRG_P2

I2C

OZ85211/2
Buck-Boost controller
Type-C
Receptacle 2

ASP

ASN

HD2

HD1

ISP

ISN

Lm2
Q5

Q6
CO3

C VB US2

Q7
Rcs3

optionHomepage46

OT G=1

Rcs4

VOUT2

VBUS2

VBUS

PPS: 3.3V~21V
Max：65W

Thank you for reading47