AUTOMOTIVE CURRENT TRANSDUCER FLUXGATE TECHNOLOGYCAB-SF 1500-000, CAB-SF 1500-001, CAB-SF 1500-004, CAB-SF 1500-005, CAB-SF 1500-006,
CAB-SF 1500-008,CAB-SF 1500-009,CAB 1500-000, CAB 1500-001, CAB 1500-005

Introduction

Automotive applications

The CAB transducer family is specially designed for the DC
current measurement of the battery packs in electric and hybrid
vehicles. The CAB 1500 Family transducer is equipped withelectronic mechanisms and software that guarantee a level ofreliability that is required by the security concepts of battery
management systems.

The CAB 1500 Family is designed to run in a vehicle battery
pack or in a battery disconnect unit and cannot be used in anenvironment exposed to water projections or gravel projections.
The CAB-SF 1500 is compliant with Functional Safety standard
ISO 26262.
The test items used to validate the product are described at theend of the document.

Features● Fluxgate transducer technology● Busbar mounting or panel mounting● Unipolar +12 V battery power supply● Output signal: High speed CAN (500 kpbs).
CAN Resistor
Termination
CAB-SF 1500-000
4800 Ω
CAB-SF 1500-001
4800 Ω
CAB-SF 1500-004
4800 Ω
CAB-SF 1500-005
4800 Ω
CAB-SF 1500-006
120 Ω
CAB-SF 1500-008
4800 Ω
CAB-SF 1500-009
4800 Ω
CAB 1500-000
4800 Ω
CAB 1500-001
4800 Ω
CAB 1500-005
4800 Ω

CasingOther
VersionComments
Bus barPanel mounting
Bus barInverted IP sig
Bus barCAN ID 0x10
Bus barBus barCAN ID 0x4C2
Bus barBus barPanel mounting
Bus barCAN ID 0x226

Principle of Fluxgate Transducers
A low-frequency fluxgate transducer is made of a wound core
which saturates under low induction.
A current chopper switches the winding’s current to saturate themagnetic core alternatively at ±Bmax with a fixed frequency.
Fluxgate transducers use the change of the saturation’s point
symmetry to measure the primary current.
Due to the principle of switching the current, all offsets (electricand magnetic) are cancelled.

Current
chopper

Signalaquisition
andprocessing

digitalOutputSpecial features● Connector type: Tyco AMP 1473672-1● Configurable CAN speed● Configurable CAN ID.

Advantages● Low offset● Total error 0.5 % over temperature range: −40 °C to +85 °C● Full galvanic separation● Compatible with 800 V applications following IEC60664-1
standard.A

N° 97.D9.65.000.0, N° 97.D9.65.001.0, N° 97.D9.65.004.0, N° 97.D9.65.005.0, N° 97.D9.65.006.0, N° 97.D9.65.008.0, N° 97.D9.65.009.0,
N° 97.H5.65.000.0, N° 97.H5.65.001.0, N° 97.H5.65.005.0
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Safety⚠

CautionIf the device is used in a way that is not specified by the manufacturer, the protection provided by the device may be compromised.
Always inspect the electronics unit and connecting cable before using this product and do not use it if damaged.
Mounting assembly shall guarantee the maximum primary conductor temperature, fulfill clearance and creepage distance,
minimize electric and magnetic coupling, and unless otherwise specified can be mounted in any orientation.

Caution, risk of electrical shock
This transducer must be used in limited-energy secondary circuits SELV according to IEC 61010-1, in electric/electronic equipmentwith respect to applicable standards and safety requirements in accordance with the manufacturer’s operating specifications.
Use caution during installation and use of this product; certain parts of the module can carry hazardous voltages and high currents(e.g. power supply, primary conductor).
Ignoring this warning can lead to injury and or/or cause serious damage.
This transducer is a build-in device, whose hazardous live parts must be inaccessible after installation.
This transducer must be mounted in a suitable end-enclosure.
Besides make sure to have a distance of minimum 30 mm between the primary terminals of the transducer and other neighboring
components.
This transducer is a built-in device, not intended to be cleaned with any product. Nevertheless if the user must implement cleaning
or washing process, validation of the cleaning program has to be done by himself.

ESD susceptibility
The product is susceptible to be damaged from an ESD event and the personnel should be grounded when handling it.
Do not dispose of this product as unsorted municipal waste. Contact a qualified recycler for disposal.
Although LEM applies utmost care to facilitate compliance of end products with applicable regulations during LEM productdesign, use of this part may need additional measures on the application side for compliance with regulations regarding EMC andprotection against electric shock. Therefore LEM cannot be held liable for any potential hazards, damages, injuries or loss of life
resulting from the use of this product.

Underwriters Laboratory Inc. recognized component

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Dimensions (in mm. General geometrical tolerance; General linear tolerance ±0.5)

CAB 1500 series

Busbar version

Drawing for information only

Panel mounting version

IP

Drawing for information only
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CAB 1500 series
Connector pin out

Primary current direction as below:

IP

IP

Weight and Recommended screwing torque instruction
Busbar Version••

Weight: 94 g ±5 %Recommended screwing torque instruction:- transducer shall be fixed with M6 fastener- tightening torque:• screw grade 6.8: 6.6 N·m• screw grade 8.8: 7.7 N·m

Panel mounting Version••

Weight: 91 g ±5 %Recommended screwing torque instruction:- transducer shall be fixed with 2 M5 fastener- tightening torque:• screw grade 6.8: 3.8 N·m• screw grade 8.8: 4.4 N·m

Laser Marking
Designation

Datacode

2D matrix content

CAB-SF 1500-000

PYYDDDCCHHMMSSJ90.D9.65.000.0

CAB-SF 1500-001

PYYDDDCCHHMMSSJ90.D9.65.001.0

CAB-SF 1500-004

PYYDDDCCHHMMSSJ90.D9.65.004.0

CAB-SF 1500-005
CAB-SF 1500-006
CAB-SF 1500-008
CAB-SF 1500-009

P = Production center ID
YY = Last two digit of the year
DDD = Day number of the year
CC = Machine ID
HH = Hour
MM = Minute
SS = Second
J = Machine jig ID

Text marking area

PYYDDDCCHHMMSSJ90.D9.65.005.0

PYYDDDCCHHMMSSJ90.D9.65.006.0
PYYDDDCCHHMMSSJ90.D9.65.008.0
PYYDDDCCHHMMSSJ90.D9.65.009.0

CAB 1500-000

PYYDDDCCHHMMSSJ90.H5.65.000.0

CAB 1500-001

PYYDDDCCHHMMSSJ90.H5.65.001.0

CAB 1500-005

PYYDDDCCHHMMSSJ90.H5.65.005.0

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CAB 1500 series

Absolute ratings (not operating)Parameter

SymbolUnit

Specification

UC

V

24

1 min

Reverse polarity

UC

V

−18

1 min

Minimum supply voltage

UC minV

6continuous

Maximum supply voltage

UC maxV

18

continuous

Ambient storage temperature

TA st

°C

−40 /+105

Creepage distance

dCp

mm

12.5

Clearance

dCI

mm

12.5

RMS voltage for AC insulation test

Ud

kV

3.5

50 Hz,1 min

Insulation resistance

RINS

MΩ

500

1000 V - ISO 16750-2

Over-voltage

IP Level

Conditions

IP41

Characteristics in nominal range
Parameter

SymbolUnit

Specification
Min

TypicalMax

Conditions

Electrical Data
9

13.5

16

−1500 A ≤ IP ≤ 1500 A

8

13.5

16

−1000 A ≤ IP ≤ 1000 A

mA

50

70

100

8 V < UC < 16 V, CAN acknowledge

IC

mA

350

400

1000

8 V < UC < 16 V, CAN acknowledge

RMS current consumption @ ±IP = 1500 A 1)

IC

mA

430

500

1400

9 V < UC < 16 V, CAN acknowledge

Ambient operating temperature

TA

°C

−40

IP N

A

−1500

1500

A

−1550

1550

Supply voltage

UC

V

IC

RMS current consumption @ ±IP = 1000 A 1)

RMS current consumption @ IP = 0 A

1)

Primary nominal DC current+85

Performance Data

CAN signal ‘CSM_BAT_CURRENT’clamping value

1550 A <|IP| < ÎP max

ÎP maxA

Overload recovery time

ts

ms

10

When IP goes back under 1550 A

Frequency bandwidth

BW

Hz

20

With Periodic CAN message @ 10 ms

Start-up time

tstartms

150

Times after enabled timer/fluxgate, excluded
20 ms additional times for HW initialization/
check

Primary withstand peak current (maximum)

1700

Analog measurement Channel
Linearity error

Total error:[−1500 A, +1500 A]

%

±0.1

At room temperature

%

±0.5

Over full temperature range
Performances are considered with averagevalue over 20 CAN frames (200 ms);
Performances with average value over 10
CAN frames (100 ms), refer to Application
Notes

mA

±50

With Periodic CAN message @ 10 ms. Peakto peak value. No averaging

εL

εtot

Output noise

Digital measurement channel
Total error

εtot

%

±7

With a minimum of ±2 A
Typical value after ageing
Performances are considered with averagevalue over 20 CAN frames (200 ms)

Note: 1) Input current peak value refer to Application Notes .

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CAB 1500 series

Total error
Analog Channel - Total error from −40 °C to 85 °C:
Performances are considered with average value over 20 CAN frames (200 ms)
Total error Ꜫtot
8 V ≤ UC ≤ 16 V; –40 °C ≤ TA ≤ 85 °C

Total error Ꜫtot
8 V ≤ UC ≤ 16 V; –40 °C ≤ TA ≤ 85 °C

12.5

0.4

10

0.3

7.5

0.2
Total error (A)Total error (A)

5
2.5
0
-2.5
-5

0.1
0
-0.1
-0.2

-7.5

-0.3

-10
-12.5
-1500

-1000

-500

0

500

1000

-0.4

1500

-40

-30

-20

Primary current (A)UC ≤ 16 V)
Total error limit (9 V ≤ UC

IP

0

10

20

30

40

Primary current (A)UC ≤ 16 V)
Total error limit (8 V ≤ UC

UC ≤ 16 V)
Total error limit (8 V ≤ UC

Total error(9 V ≤ UC ≤ 16 V ; −40 °C ≤ TA ≤ 85 °C)

(A)

(A)

(%)

−1500

±7.5

±0.5

−40

±0.2

±0.5

0

±0.05

-

40

±0.2

±0.5

1500

±7.5

±0.5

IP

4July2024\Version 3-10Total error(8 V ≤ UC ≤ 16 V ; −40 °C ≤ TA ≤ 85 °C)

(A)

(A)

(%)

−1000

±5

±0.5

−40

±0.2

±0.5

0

±0.05

-

40

±0.2

±0.5

1000

±5

±0.5

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External Magnetic Field Influences

CAB 1500 series

The CAB 1500 Family delivers accurate current measurement. However, to ensure its proper functioning and to ensure
the current measurement accuracy, it is necessary to comply with rules for setting up in the BMS environment. Thus, someconditions must be respected during the design of the environment of the transducer:•

Primary busbar centering•

Busbar shape•

Contactors position

LEM’s recommendations can be found in the application notes available on request. Please contact LEM support team toensure that your busbars design fits with LEM’s design guideline.

Current Ripple Influences
Current ripples on the high voltage DC lines could be induced during power conversion from devices like DC/DC, inverter, onboard charger, and so on.
Current ripples not only negatively impact on the health of li-ion batteries, but also could cause malfunctions of the CAB
transducer. The failure mode can manifest itself as a disturbed current measurement due to aliasing effect, leading to internal
error when the threshold is exceeded. The malfunctions can be automatically recovered when the ripple current disappears.
Normally the ripple current should be measured and minimized during vehicle system design and development. For proper
function of the CAB transducer, the acceptable maximum value of the ripple current should be checked. Please contact LEM
support team on the reference values, LEM’s recommendations can be found in the application notes available on request.

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CAB 1500 series

CAN output specification● CAN protocol 2.0B
● Bit order: big endian (Motorola)● CAN oscillator tolerance: 0.27 %● No sleep mode capability● 120 Ohm termination resistor to be added externally (except CAB-SF 1500-006), internal CAN impedance = 4.8 kOhm
● CAB-SF 1500-006 integrates 120 Ohm termination resistor inside transducer● Instruction for CAN modification can be found in the application notes available on request

CAB-SF 1500 CAN message table● CAB1500_IP message overview.
Default frame ID: 0x3C2; transmit period: 10 ms.

CAN Frame Content
7

MSB

4July2024\Version 3

2

1

0

StatusPowerSupply StatusInternalError SafetyGoalViolation
LSB

MSB

LSB

Analog Current
Analog Current
LSB
Digital Curent
MSB
Digital Curent

BYTE 5BYTE 73MSB

BYTE 3BYTE 6

4

Analog Current

BYTE 2BYTE 4

5

Sequence Counter IP

BYTE 0BYTE 1

6

LSB
Reserved
MSB

LSB
CRC_ IPMSB

LSB

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CAB 1500 series• ‘Sequence Counter IP’ signal• Initialized with 0 and incremented by 1 for every subsequent send request• When the counter reaches the value 15 (0xF), then restart with 1 for the next send request.
• ‘Status Power Supply’ signal
CAN Frame Content
7

6

5

4

SequenceCounterIP

BYTE 0MSB

3

2

StatusPowerSupply
LSB

MSB

1

0

StatusInternalError SafetyGoalViolation

LSB

When Power Supply voltage measurement is not available, then ‘Status Power Supply’ = “1 1”Notes:• At transducer start-up, if supply voltage < 7.8 V or > 16.2 V, no CAN frame emission• Status details can be found in the application notes available on request.

• ‘Status Internal Error’ signal
This flag is set to 1 to inform the BMS about two scenarios:• Internal hardware abnormal detected (reference voltage, DAC errors and impact from application ripple current, etc)
• Over current detected on the busbar - current above 1600 A. In this use case, the Status Internal Error flag is set to 1 (seedetails on the next page in ‘Analog Current’ signal section)• ‘Safety Goal Violation’ signal [SG1: Current Sensing Error]
In the current range of [ −1500 A; −220 A [ and ] +220 A; +1500 A ], if there is more than 20% of difference between analog
current level and digital current level --> then Safety Goal Violation = 1
In the current range of [ −220 A; 220 A ], if there is a gap above 44 A between analog current level and digital current level -->then Safety Goal Violation = 1
Safe State: To provide Safety Goal Violation flag, keep providing current measurement
FTTI: 500 ms

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CAB 1500 series● ‘Analog Current’ signal
Analog measurement of the primary current−1500 ≤ IP ≤ +1500. ‘Analog Current’ signal = IP . Error = 0.5 %1500 < |IP| ≤ 1550. ‘Analog Current’ signal = IP . Error = 1 %−ÎP max ≤ IP < −1550. ‘Analog Current’ signal is clamped at −1550 A.
+1550 < IP ≤ ÎP max. ‘Analog Current’ signal is clamped at +1550 A.

|IP| > ÎP max. ‘Analog Current’ signal = 0xFFFFFF.
Note: ÎP max ≈ 1700 A
Internal Error Status

TRUE

TRUE

FALSE
Analog I P Value
1%

Clamping at 1550 A

Analog Current Value

FALSE
Analog I P Value
0.5 %

1500
–Î P max

–1600

–1580

–1550

TRUE

TRUE

Analog I P Value Analog I P Value
0.5 %
1%

1550

Clamping at 1550 A

1580

1600

Î P max–1500

Here below the values for Byte 1, 2 and 3:
IP

Hex value

MSB

LSB

Byte 1

Byte 2Byte 31550.000

97A6B097

A6

B01500.000

96E360

96

E3

60

0.001

800001

80

00

01

0.000

8000008000

00−0.001

7FFFFF

7F

FF

FF−1500.000

691CA069

1C

A0−1550.000

68595068

59

50

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CAB 1500 series• ‘Digital Current’ signal−ÎP max ≤ IP < −1550. ‘Digital Current’ signal is clamped at −1550 A. Error = NA
+1550 < IP ≤ ÎP max. ‘Digital Current’ signal is clamped at +1550 A. Error = NAInternal Error Status

TRUE

Digital Current Value(only for SF version)

TRUE

FALSE

FALSE

Live I P Value
7%

Clamping at 1550 A

1500–Î P max

–1600

–1580

–1550

TRUE

TRUE

Live I P Value
7%

Clamping at 1550 A

1550

1580

1600

Î P max–1500

Digital measurement of the primary current, Byte 4 and 5:
IP

Hex value

MSB

LSB

Byte 4

Byte 5

1550

860E

86

0E

1500

85DC

85

DC

1

8001

80

01

0

8000

80

00

−1

7FFF

7F

FF

−1500

7A24

7A

24

−1550

79F2

79

F2

• ‘CRC_ IP’ signal
8-bit SAE J1850 CRC calculation of the first seven bytes.

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CAB 1500 series
CAB 1500 CAN message table● CAB1500_IP message overview.
Default frame ID: 0x3C2; transmit period: 10 ms.

7

6

5

Sequence Counter IP

BYTE 0MSBBYTE 1CAN Frame Content
4
3

1

0

StatusPowerSupply StatusInternalError

Reserved

LSB
MSB
LSB
Analog Current

MSB
Analog Current

BYTE 2

Analog Current

BYTE 3

LSB
Reserved

BYTE 4

Reserved

BYTE 5Reserved

BYTE 6BYTE 72

CRC_ IPMSB

LSB• ‘Sequence Counter IP’ signal• Initialized with 0 and incremented by 1 for every subsequent send request• When the counter reaches the value 15 (0xF), then restart with 1 for the next send request• ‘Status Power Supply’ signal
CAN Frame Content
7

6

5

4

Sequence Counter IP

BYTE 0MSB

3

2

StatusPowerSupply
LSB

MSB

1

0

StatusInternalError

Reserved

LSB

When Power Supply voltage measurement is not available, then ‘Status Power Supply’ = “1 1”Notes:• At transducer start-up, if supply voltage < 7.8 V or > 16.2 V, no CAN frame emission• Status details can be found in the application notes available on request.

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CAB 1500 series• ‘Status Internal Error’ signal
This flag is set to 1 to inform the BMS about two scenarios:• Internal hardware abnormal detected (reference voltage, DAC errors and impact from application ripple current, etc)
• Over current detected on the busbar - current above 1600 A. In this use case, the Status Internal Error flag is set to 1 (seedetails on the next page in ‘Analog Current’ signal section)● ‘Analog Current’ signal
Analog measurement of the primary current−1500 ≤ IP ≤ +1500. ‘Analog Current’ signal = IP . Error = 0.5 %1500 < |IP| ≤ 1550. ‘Analog Current’ signal = IP . Error = 1 %−ÎP max ≤ IP < −1550. ‘Analog Current’ signal is clamped at −1550 A.
+1550 < IP ≤ ÎP max. ‘Analog Current’ signal is clamped at +1550 A.

|IP| > |ÎP max|. ‘Analog Current’ signal = 0xFFFFFF.
Note: |ÎP max| ≈ 1700 A
Internal Error Status

TRUE

TRUE

FALSE
Analog I P Value
1%

Clamping at 1550 A

Analog Current Value

FALSE
Analog I P Value
0.5 %

1500
–Î P max

–1600

–1580

–1550

TRUE

TRUE

Analog I P Value Analog I P Value
0.5 %
1%

1550

Clamping at 1550 A

1580

1600

Î P max–1500

Here below the values for Byte 1, 2 and 3:
IP

Hex value

MSB

LSB

Byte 1

Byte 2Byte 31550.000

97A6B097

A6

B01500.000

96E360

96

E3

60

0.001

800001

80

00

01

0.000

8000008000

00−0.001

7FFFFF

7F

FF

FF−1500.000

691CA069

1C

A0−1550.000

68595068

59

50• ‘CRC_ IP’ signal
8-bit SAE J1850 CRC calculation of the first seven bytes.

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Applicable standards - Functional Safety - CAB-SF 1500

CAB 1500 series

SafetySafety Manual Table of Contents
Functional Safety

ISO 26262

1

DOCUMENT(ASIL C compliant)(11/2018)

1.1 Applicable documents
1.2 Reference documents
2

GLOSSARY

3

Introduction

4

Assumption

5

Product overview

5.1 Purpose
5.2 Type of Current Transducer
5.3 Safety Element out of Context (SEooC)
5.4 Functional Block Diagram
5.5 Mission Profile
6

Safety Measures

6.1 Safety Goal allocated to the transducer
6.2 Safety Concept
6.3 Description of the maintenance activities expected from the customer
6.4 Description of the maintenance activities expected from the customer in the caseof a failure indicated by the warning and degradation concept
7

Hardware Requirements on System Level

7.1 Datasheet Compliance
8

Software Requirements on System Level

8.1 DTC Monitoring
9

Failure Rates and FMEDA

9.1 FMEDA Reference Document
9.2 FMEDA Applicable Standard
9.3 Failure Mode Distribution
9.4 FMEDA Results
10

Provisions Against Dependent Failures10.1 External Parasitic Magnetic Fields
10.2 Environmental constraints
11

Measures to Prevent Systematic Failures

11.1 Parasitic Magnetic Fields due to Bus Bar design
11.2 Current Ripple Influences
11.3 CAB-SF 1500-C Fastening
12

Diagnostic

12.1 Diagnostic Trouble Codes Monitoring
12.2 Diagnostic Mode / Maintenance Operation
13

Safety-related content of the instructions for operation, service anddecommissioning

14

Field Monitoring*Safety Manual availability after NDA and assurance of business signed.

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CAB 1500 series

Applicable standards - PV tests performed - CAB-SF 1500
Test

Standard

Procedure

CHARACTERIZATION AT 25 °C(Initial and final)

LEM CO.60.09.014.0

Sensitivity; Total error; Offset; Linearity error; Current
Consumption

CHARACTERIZATION IN TEMPERATURE
RANGE (Initial and final)

LEM CO.60.09.014.0

Sensitivity; Total error; Offset; Linearity error; Current
Consumption

Environmental test

Ageing 85 °C /85 % RH

JESD 22-A101 (03/2009)

T °C = 85 °C; RH = 85 %; Duration = 1000 h
Transducer not supply
Check After stab. @ 25 °C (End test)
Performance after test, from −40 °C to 85 °C:
IO ≤ 50 mA, εtot ≤ 1 %Low temperature storage

ISO 16750-4 § 5.1.1.2(04/2010)

T °C = −40 °C
Duration = 24 h; Power off, no monitoring
Check After stab. @ 25 °C (End test)

High temperature storage

ISO 16750-4 § 5.1.2.2(04/2010)

T °C = 85 °C
Duration = 96 h; Power off, no monitoring
Check After stab. @ 25 °C (End test)

ISO 16750-4 § 5.3.1(04/2010)

T °C = −40 °C & +85 °C, see Fig. 2 of ISO 16750-4
Duration = 30 cycles; 1 cycle = 8 h
Total duration = 10 days
UC = 13.5 V (≡ connected); IP = 0 A; no monitoring
Check After stab. @ 25 °C (End test)

ISO 16750-4 § 5.3.2(04/2010)

T °C = "T °C Operating min & max" −40 to +85 °C
Duration = 300 cycles according to the climatic code (definedtable 4);
Exposure time : 30 min.
UC = NO power supply (≡ unconnected) and No wiring harness
Check After stab. @ 25 °C (End test)

ISO 16750-3 § 4.1.2.4(12/2012)

Random;−40 °C /+85 °C during 8 hours;
8 h for each axie and each DUT; RMS acceleration 27.1 m/s²
Torque measurement before and after. Connected but not
supply.
No monitoring

Temperature cycle with specified change rate

Thermal shock

Random Vibration

ISO 16750-3 § 4.2(12/2012)

Temperature: Ambient temperature.
Default § 4.2.2
Operating mode: 3.2
Pulse shape: half sine, 50 G, 6 ms
10 shocks per direction (total 60)& Meas. torque Bef. and After
Offset before and after; Parts not connected
Check After stab. @ 25 °C (End test)

Free Fall

ISO 16750-3 § 4.3(12/2012)

Number of devices: 3
Falls/DUT: 2
Height = 1 m on Concrete floor
3 axes; 2 directions by axis; 1 sample by axis
Operating mode: 1.1
Temperature: 25 °C if not specified
Check after test at 25 °C and visual inspection

Cross section checking on PCBA

IPC-A-610G: 2017Class 3

IPC-TM-650 2.1.1F:2015

Cross section checking on solderlessconnections

GB/T 18290.5-2015

IPC-TM-650 2.1.1F:2015

Whisker checking on PCBA

Refer to JESD201-A(04/2010)

Refer to JESD22-A121A (04/2010)
Class 2Mechanical Shocks

4July2024\Version 3

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Page 15/17
LEM International SA
Route du Nant-d’Avril, 152
1217 Meyrinwww.lem.com

CAB 1500 series
TestStandard

ProcedureElectrical test

Reversed voltage

ISO 16750-2 § 4.7(12/2012)

Test performed at room temperature
By default: case 2;
Duration : 60 s;
Level defined in table 7 according to the nominal system voltage

Overvoltage (for 12 V nominal voltage)

ISO 16750-2 § 4.3.1(12/2012)

T °C = Tmax - 20 °C and room temperature;
At Tmax, apply 18 V for 60 min to all inputs;
At room temperature, apply 24 V for 60 s

Superimposed alternating voltage

ISO 16750-2 § 4.4(12/2012)

12 V systemseverity1: 1 V peak to peak according to Fig. 2
triangular, logaritymic
5 times sweep continuously

Slow decrease and increase of supply voltage

ISO 16750-2 § 4.5(12/2012)

Test performed at room temperature
US min = 8.5 V
Decrease from US min to 0 V and increase from 0 V to US min;Change rate: 0.5 V/min> 8.5 V< 8.5 V

Momentary drop in supply voltage

ISO 16750-2 § 4.6.1(12/2012)

Test performed at room temperature
UC min = 8.5 V
UC min to 4.5 V
See Fig. 4

Reset behavior at voltage drop

ISO 16750-2 § 4.6.2(12/2012)

Test performed at room temperature
See Fig. 6

Load dump

ISO 16750-2 § 4.6.4(12/2012)

Test performed at room temperature
Pulse B, Pulse described in table 6'System with 12 V nominal voltage Class C
UA = 14 V, US* = 35 V, US = 80 V, Ri = 1 Ohm Td = 400 ms,
5 pulses at 1 min intervals See Fig. 9

Ground reference and supply offset

ISO 16750-2 § 4.8(12/2012)

Test performed at room temperature and test method defined at§ 4.8.2

Open circuit test - single line interruption

ISO 16750-2 § 4.9.1(12/2012)

Operating the transducer and open the circuit line after line.
Opening duration for each line: 10 s

Short circuit protection - signals circuits

ISO 16750-2 § 4.10.2(12/2012)

Connect all inputs and outputs to US max = 16 V and to GND for aduration of 60 s

Withstand voltage

ISO 16750-2 § 4.11
(12/2012)

3.5 KV AC 50 Hz 60 s

Insulation resistanceISO 16750-2 § 4.12
(12/2012)

1000 V DC for 60 s
Resistance criteria: > 1000 MOhm

4July2024\Version 3

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Page 16/17
LEM International SA
Route du Nant-d’Avril, 152
1217 Meyrinwww.lem.com

CAB 1500 series
TestStandard

Procedure

EMC test
Resistance to electrostatic discharges(handling device)

Immunity to Radiated field- Anechoic
chamber(ALSE with ground plane)

Transient Disturbances Conducted along
Supply Lines

Transient Disturbances Conducted along I/Oor Transducer Lines

Immunity to Bulk Current Injection(BCI)

ISO 10605(07/2008)

Contact discharges: ±8 kV; Air discharges: ±15 kV.
UC = NO power supply (≡ unconnected)

ISO 11452-2(11/2019)

Test level II and Test level IV· CW and AM in the [200 MHz – 800 MHz] frequency band.
· CW, AM and PM1 in the [800 MHz – 1 GHz] frequency band.
· CW and PM1 in the [1 GHz – 1.2 GHz] frequency band.
· CW and PM2 in the [1.2 GHz – 1.4 GHz] frequency band.
· CW and PM1 in the [1.4 GHz – 2.7 GHz] frequency band.
· CW and PM2 in the [2.7 GHz – 3.2 GHz] frequency band.

ISO 7637-2(03/2011)

test pulse :1 : −100 V t1 = 5 s (0.2 to 5 s)
2a : 50 V t1 = 0.2 to 5 s
2b : 10 V td = 2 s
3a : U -150 V
3b : U 100 V

ISO 7637-3(07/2016)

12 V nominal supply voltage
Fast a : CCC –150 V 10 min
Fast b : CCC +100 V 10 min
slow pulse positive: ICC +20 V 20 min
slow pulse negative: ICC –20 V 20 min

ISO 11452-4(12/2011)

Table E.1
Test level I, 1 MHz to 3 MHz : 60 mA * F(MHz) /3 | 3 to 400 MHz: 60 mA
Test level II, 1 MHz to 3 MHz : 100 mA * F(MHz) /3 | 3 to 400
MHz : 100 mA
Test level IV, 1 MHz to 3 MHz : 200 mA * F(MHz) /3 | 3 to 400
MHz : 200 mA

Conducted emission - Voltage method

CISPR 25 (2016) § 6.3

Table 5, Class 3, BROADCAST and MOBILE SERVICES
f = 0.15 MHz to 108 MHz

Radiated emission - ALSECISPR 25 (2016) § 6.5

Table 7, Class 3, BROADCAST and MOBILE SERVICES

ISO 11452-8 (2015)

12 V Nominal supply voltage
radiating loop method
Test requirement see TableA.1(Internal filed) Test level I
FPSC Status I

Immunity to magnetic fileds

4July2024\Version 3

LEM reserves the right to carry out modifications on its transducers,in order to improve them.

Page 17/17
LEM International SA
Route du Nant-d’Avril, 152
1217 Meyrinwww.lem.com