PRELIMINARY＜Gate Drive Unit＞

VLB514-01R/VLB515-01R
DRIVER FOR IGBT MODULESFEATURESVLB514-01R + VLB515-01R>Directly mountable on the IGBT module(LV100 type)>Built in 2 gate drive circuits for IGBT module>Built in the isolated DC-DC converter for gate drive>Output gate peak current is +/-20A(max)>Electrical isolation voltage is 4000Vrms (for 1 minute)>Built in short circuit protection with soft shut down>One way power supply system for gate drivers andinput signal (VD=15V)

Gate drive unit VLB514-01RBuilt in core HIC(VLA591-01R)

TARGETED IGBT MODULES

VCES=1200V/1700V series up to 1200A class(Industrial LV100 type)

Adaptor unit VLB515-01R

APPLICATIONSInverter, Servo, UPS, or Wind power etc.

BLOCK DIAGRAM
Adaptor Unit
VLB515-01R

Gate drive Unit VLB514-01R
TIMER&RESET

LATCH

DETECTC

FoH
G1

INTERFACEINH

GATE SHUT DOWN

E1VCC1
UVL

VD

VEE1

DC－AC

Reg.

E1

VCC2
UVL

GND

E2VEE2TIMER&RESET

LATCH

DETECTFoLINL

G2INTERFACEGATE SHUT DOWN

E2TH*Gate resistors of VLB515-01R are not mounted in the initial state. So please solder the chosen resistors.

Sep.2021

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PRELIMINARY＜Gate Drive Unit＞

VLB514-01R/VLB515-01RDRIVER FOR IGBT MODULESOUTLINE
Unit : mm28 max

68

Gate drive Unit: VLB514-01R

99

Resin spacerConnector
for electric link

99

21468

Adaptor Unit: VLB515-01R

PRELIMINARY＜Gate Drive Unit＞

VLB514-01R/VLB515-01R
DRIVER FOR IGBT MODULESASSEMBLING METHOD OF TWO UNITS
After fixing the adapter unit to IGBT module, please fix drive unit by 4 screws to adaptor unit.
At the same time, ensure the electrical connection between the adaptor unit and the drive unit
through connector connection.

Hole to fix by screw (M3)and washer x4

Gate drive Unit: VLB514-01RConnector
for electric link

United unit

fixed by screw (M3) and washer x4

Adaptor Unit: VLB515
Connector
for electric link

3

PRELIMINARY＜Gate Drive Unit＞

VLB514-01R/VLB515-01R
DRIVER FOR IGBT MODULESCIRCUIT DIAGRAM
Gate drive Unit VLB514-01R
CN1-1
4VD(15V)

2550
CN3VD
1GND
2VD
3
GND
4
VD
5GND
6VD
7GND
8FoH

910111213141516171819201IC2(3M)

C14VEE121HIC1(VLA591)

4C2C6C924CN2‐134734

D2729
VCC228C31C7

D1
RG1

RG2

D3

D4FoH

6FoL

45

VEE23027G1

CN2-1,2Pin No.
Pin name
1
VCC22NC
3Detect24NC
5NC
6NC
7Vo28
E2

CN2-2
3

D5

D6C10

CN1-1,2Pin No.
Pin name
1NC
2VCC13NC
4Detect15NC
6NC
7E18Vo1C

D2RG4C4C8IGBT module

E1

RG3831

DZ17872610kCN1-241220

IC1‐2Adaptor Unit VLB515-01R

7C1C5348

IC1‐1CN3 : 3428-6002LCPL

8VCC123C13GND
INH

D122546C11 C1210k

232GND
FoL
GND
INL
GND
NC
GND
NC
GND

81749

VIN(5V)

G2
DZ2E2

TH
RG1 to RG4 of VLB515-01R are not mounted in the initial state.
Please use it after mounting gate resistors

4Pin No.
1234567891011121314151617181920CN3Pin name
VD
GND
VD
GND
VD
GNDVD
GND
FoH
GND
INH
GND
FoL
GND
INL
GND
NC
GND
NC
GND

PRELIMINARY＜Gate Drive Unit＞

VLB514-01R/VLB515-01R
DRIVER FOR IGBT MODULES

MAXIMUM RATINGS(unless otherwise noted, Ta=25 ℃)

SymbolItem

Conditions

Ratings

VD

Supply voltage

DC-1 ~ 16.5

V

VI

Input signal voltage

Applied between GND - INH,INL

19V

I_Fo

Fo output current

Sink and source current of Fo terminal+/-10mA-20

A

20

A

4000

Vrms

IOHP

Unit

Output gate peak current

Pulse width 3us

Viso

Isolation voltage betweenprimary and secondary

Sine wave voltage 60Hz, for 1min

Topr

Operating temperature

No condensation allowable-40 ~ 85

deg CTstg

Storage temperature

No condensation allowable-40 ~ 85

deg CIOLPIdrive

Gate drive current

Gate average current (Per one circuit)

100mA

VDC_Link

Main circuit voltage

The power supply voltage between P and N

1200

V

Peak collector voltage

Peak voltage between C and E1,E2 and E1

1700

VVCp

ELECTRICAL CHARACTERISTICS( unless otherwise noted, Ta=25 degC, VD=15V, VI=5V, f=3kHz)

ItemVD

Supply voltageRecommended range

Switching frequency

Recommended range
It is limited by gate average current (max:100mA)---kHzGate on resistance

Recommended range

TBD--ohmohm

f
RG

Conditions

LimitsSymbolMin

TypMax

14.5

15

15.5

Unit
V

Gate off resistance

Recommended range

1--

4.5

-

15.5

V-4-

4mA

VI

Input signal voltage

Recommended range

I_Fo

Fo output current

Recommended range

VI_H

Input signal highthreshold

-

1.5

1.8

2.1

V-

0.8

1.1

1.4

VV

VI_L
VOH

Input signal low threshold
Plus bias output voltage

Input “H”(High active)

13.5

15.2

16.5

VOL

Minus bias output voltage

Input “L”

-6-8-11VtPLH“L-H” propagation time

RG=1.6Ω, f=3kHz, C_load:0.33uF

-

0.29-

us

tPHL

“H-L” propagation time

RG=1.6Ω, f=3kHz, C_load:0.33uF

-

0.15-

us

ttrip

Masked time detect
short circuit

Detect pin : over than 15V or open

-2.9-

us

ttimerTimer

Between start and cancel of protection(Under input signal is off state)

1-2msUVLO+_VCC

Under voltage lock out

VCC voltage (Operation start)

-

12.6

-V

UVLO-_VCC

Under voltage lock out

VCC voltage (Operation stop)

-

11.7

-V

VSC

SC detect voltage

Collector voltage of IGBT

15--V5

PRELIMINARY＜Gate Drive Unit＞

VLB514-01R/VLB515-01R
DRIVER FOR IGBT MODULES

CALCULATION FOR GATE DRIVE CURRENT (GATE AVERAGE CURRENT)

This product has isolated DCDC converter built in for gate drive.
The maximum output average current is 100mA per one channel.
This current means maximum gate average current.
When you decide the switching frequency,
please check the gate average current by next formula.

Gate charge characteristic of IGBT
VGE
15VIdrive = (Q1＋lQ2l ) x f
 It must be less than 100mA
Idrive: Gate average current
Q1: Gate charge at +15V (Read from data sheet of IGBT)
Q2: Gate charge at -7V (Read from data sheet of IGBT)f: Switching frequency of IGBT

Gate charge-7V
Q1

Q2

DEFINITION OF CHARACTERISTICSOPERATION OF SHORT CIRCUIT PROTECTIONNORMAL SWITCHING OPERATION
5V

INH, INLINH, INL

50%

VOH

Vo:
8 pin of CN1
7 pin of CN2

Vo:
8 pin of CN1
7 pin of CN2ttimer

ttrip

0V

5VVOL

FoH, FoL
tPLH

0V
-5V

tPHL

*Tested by RG=1.6Ω, C_load:0.33uF, f=3kHz, ON Duty=50%

650%

PRELIMINARY＜Gate Drive Unit＞

VLB514-01R/VLB515-01R
DRIVER FOR IGBT MODULESAPPLICATION EXAMPLE

RC filter~10us

Adaptor Unit
VLB515-01R

Gate drive Unit VLB514-01R
CN1-1
4VD(15V)

2550
VD
(15V)

5V
4.7k

4.7k
MCU

1234567891011121314151617181920CN3VD
GND
VD
GND
VD
GND
VD
GND
FoH

IC232GND
INL
GND
NC
GND
NC
GND

D122VCC123546C1C520C13C11 C12348

VEE121
HIC1(VLA591-01R)

C1410k

447

FoL

45

CN2‐23771188C331
VEE230277CN2‐13C767

D2VCC228FoH

2RG2

D3D4G1

D22910k

2RG1C924348C

DZ1 E126

IC1‐28D1C2C6IC1‐1GND
INH
GND
FoL

49

VIN(5V)
117CN1-24IGBT module

RG3

RG4D5D6G2DZ2 E2C4C8TH

C10Input gate signal(5V-----15V )About the IC which drives gate signal on input side, it is not recommended to use the one whose output
is open collector or open drain type.
Note1) Gate Resistor is not installed at the time of shipment. Please solder the chosen resistor.
2) When you confirm the gate output without connecting IGBT, please invalidate the short-circuit protection function.
If connect resistance of 4.7k ohm between the C(E1) and E1(E2) without main power supply,
the short circuit protection becomes invalid.

7

PRELIMINARY＜Gate Drive Unit＞

VLB514-01R/VLB515-01R
DRIVER FOR IGBT MODULES

OPERATION OF PROTECTION CIRCUIT(1) In case the gate signal is “ON” and the collector voltage is high,this drive unit will recognize the main circuit as short circuit andreduce the gate voltage. Besides, put out fault signal (”L”) which
inform that protection circuit is operating at the same time from
Fo terminal (9,13 pin of CN3).
(2) The protection circuit reset and resort to ordinary conditionif input signal is “OFF” when the premised 1~2msec passed.
( “OFF” period needs 10us or more )(3) When the output rises, the masked time detect short circuit (ttrip)
is set up so that on-time of IGBT can be secured properly.

OPERATION FLOW ON DETECTING SHORT CIRCUIT

START

DETECTION OF
SHORT CIRCUITGATE SHUTDOWNTIMER STARTOUTPUT FAULT SIGNALLATCH & TIMER RESET SYSTEM IN SHORTCIRCUIT PROTECTION CIRCUIT

Once the short-circuit protection circuit starts, it shuts down thegate output and keeps alarm output, causing the latch status.
This status is canceled if the input signal is OFF when specific time
elapses after the activation of the short-circuit protection circuit.
Then, gate output depending on input signals becomes possible.
If the input signal is ON when specific time elapses, the latch
status is not canceled: it is canceled when the signal becomes OFF.
As mentioned above, on the latch & timer reset system, the latch
status is resulted after activation of the protection circuit andshutdown of the gate output. Therefore, during this period, gateoutput is not made no matter how much input signals are received.
For this reason, it is possible to safely stop the entire equipment
by sending error signals to the microcomputer during this period tostop all gate signals.

END OF TIMER

TIMER
1 ~ 2msNo

Yes

INPUT SIGNAL ISOFF

NoYes

CLEAR ALARM
ENABLE OUTPUT

TIMING CHART

INH,INLVGE(IGBT)

VCE(IGBT)

IC(IGBT)

VSC
Short-circuit
occurrence

Masked time (ttrip)
Timer

FoH,FoL

The latch status is canceled.

8PRELIMINARY＜Gate Drive Unit＞

VLB514-01R/VLB515-01R
DRIVER FOR IGBT MODULESABOUT MOUNTING GATE RESISTORS

There is not gate resistors on adaptor unit at the initial state.
It is possible to install up to 2 resistors in mount area of gate resistor per one channel.
And there are some variations by combining resistors.
There are some examples in the following chart, please refer to it and set the gate resistors.
And please solder the chosen resistors.
SBD

SBD
Drive
circuit

G1,2

RG1,3

RG2,4

Layout pattern connection on substrate
Example 1
SBD

Example 2

SBD
Drive
circuit

G1,2

RG1,3SBD

SBD

Drivecircuit

G1,2

RGa

RG2,4

Rg_on RG1,3
Rg_off RG2,4

Rg_on RGa
Rg_off RGa

RG2

RG1

Adaptor Unit

RG4

RG3Note) Temperature of soldering iron tip : 360℃ (max) under 5 seconds

9PRELIMINARY＜Gate Drive Unit＞

VLB514-01R/VLB515-01R
DRIVER FOR IGBT MODULES

THE INSTALLATION OF THE ADAPTOR UNIT ON POWER MODULE

When fixing adaptor unit on Power module , please use the screws with spring washers.

Adaptor unit

Fixed by screw (M3) & washer (x8)Power module10PRELIMINARY＜Gate Drive Unit＞

VLB514-01R/VLB515-01R
DRIVER FOR IGBT MODULESFOR SAFETY USINGGreat detail and careful attention are given to the production activity of Hics, such as the development, the quality ofproduction, and in itʼs reliability. However the reliability of Hics depends not only on their own factors but also intheir condition of usage. When handling Hics, please note the following cautions.

CAUTIONS
Packing

Carrying

The materials used in packing Hics can only withstand normal external conditions.
When exposed to outside shocks, rain and certain environmental contaminators, thepacking materials will deteriorates. Please take care in handling.
1)
2)
3)
4)
5)

Donʼt stack boxes too high. Avoid placing heavy materials on boxes.
Boxes must be positioned correctly during transportation to avoid breakage.
Don't throw or drop boxes.
Keep boxes dry. Avoid rain or snow.
Minimal vibration and shock during transportation is desirable.

Storage

When storing Hics, please observe the following notices or possible deterioration of
their electrical characteristics, risk of solder ability, and external damage may occur.
1)
Devices must be stored where fluctuation of temperature and humidity isminimal, and must not be exposed to direct sunlight. Store at the normal
temperature of 5 to 30 degrees Celsius with humidity at 40 to 60%.
2)
Avoid locations where corrosive gasses are generated or where much dust
accumulates.
3)
Storage cases must be static proof.
4)
Avoid putting weight on boxes.

Extendedstorage

When extended storage is necessary, Hics must be kept non-processed. When using
Hics which have been stored for more than one year or under severe conditions, besure to check that the exterior is free from flaw and other damages.

Maximumratings

To prevent any electrical damages, use Hics within the maximum ratings. Thetemperature, current, voltage, etc. must not exceed these conditions.

Polarity

To protect Hics from destruction and deterioration due to wrong insertion, make sureof polarity in inserting leads into the board holes, conforming to the external view for
the terminal arrangement.

11PRELIMINARY＜Gate Drive Unit＞

VLB514-01R/VLB515-01R
DRIVER FOR IGBT MODULES

Keep safety first in your circuit designs!
·ISAHAYA Electronics Corporation puts the maximum effort into making semiconductor products betterand more reliable, but there is always the possibility that trouble may occur with them. Trouble withsemiconductors may lead to personal injury, fire or property damage. Remember to give due
consideration to safety when making your circuit designs, with appropriate measures such as (1)placement of substitutive, auxiliary circuits, (2) use of non-flammable material or (3) prevention
against any malfunction or mishap.
Notes regarding these materials·These materials are intended as a reference to our customers in the selection of the ISAHAYA products
best suited to the customerʼs application; they don't convey any license under any intellectual property
rights, or any other rights, belonging to ISAHAYA or a third party.
·ISAHAYA Electronics Corporation assumes no responsibility for any damage, or infringement of any
third party's rights, originating in the use of any product data, diagrams, charts or circuit application
examples contained in these materials.
·All information contained in these materials, including product data, diagrams and charts, represent
information on products at the time of publication of these materials, and are subject to change by
ISAHAYA Electronics Corporation without notice due to product improvements or other reasons.
It is therefore recommended that customers contact ISAHAYA Electronics Corporation or an authorized
ISAHAYA products distributor for the latest product information before purchasing product listed herein.
·ISAHAYA Electronics Corporation products are not designed or manufactured for use in a device orsystem that is used under circumstances in which human life is potentially at stake. Please contact
ISAHAYA Electronics Corporation or an authorized ISAHAYA products distributor when considering theuse of a product contained herein for any specific purposes, such as apparatus or systems fortransportation, vehicular, medical, aerospace, nuclear, or undersea repeater use.
·The prior written approval of ISAHAYA Electronics Corporation is necessary to reprint or reproduce inwhole or in part these materials.
·If these products or technologies are subject to the Japanese export control restrictions, they must be
exported under a license from the Japanese government and cannot be imported into a country otherthan the approved destination.
Any diversion or re-export contrary to the export control laws and regulations of Japan and/or thecountry of destination is prohibited.
·Please contact ISAHAYA Electronics Corporation or authorized ISAHAYA products distributor for further
details on these materials or the products contained therein.

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