＜Gate Drive Unit＞

GAU240P-15405

PRELIMINARY

DRIVER FOR IGBT MODULESFEATURESGAU240P-15405>Universal gate drive prototype board built in 2 coregate drive HICs (VLB506)>Built in the isolated DC-DC converter for gate drive>Output peak current is +/-40A(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)>Adjustable fall time of gate voltage on activity of shortcircuit protection

TARGETED IGBT MODULES

VCES = 650V series up to 600A class
VCES = 1200V series up to 3600A class
VCES = 1700V series up to 3600A class

Built in core HIC(VLB506)

APPLICATIONSInverter, Servo, UPS, or Wind power etc.

DC－AC

BLOCK DIAGRAM

Reg.

VCC1

UVL

VEE1

TIMER&RESET

CN4

LATCH

PRE
DRIVE

INTERFACE

CN3
C1

Rg_on

CN1
G1
E1

DETECT

FoH
INH

C5

Rg_offRs1

GATE SHUT DOWN

G1
E1

VD
Reg.

5V

DC－AC

CN5

Reg.

VCC2

UVL

VEE2

TIMER&RESET

GND

LATCH

DETECT

Rg_on
INTERFACE

PRE
DRIVE

FoL
INL

C6Rg_off
Rs2

GATE SHUT DOWN

CN2G2E2G2E2CN6* There are not Rg_on, Rg_off and Rs1,2 at the initial state. So please solder the chosen resistors.
* CN1,2 : Main output connector
CN5,6 : Sub connector

Sep.2021

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＜Gate Drive Unit＞

GAU240P-15405

PRELIMINARY

DRIVER FOR IGBT MODULESOUTLINE

3max

Unit : mmCIRCUIT DIAGRAM

17129

VD(15V)

2VIN(5V)

CN4123456789101112131415161718
1920

1

VD
GND
VD
GND
VD
GND
VD
GND
FoH
GND
INH
GND
FoLGND
INL
GND
NC
GND
NC
GND

D1IC2362C923 24

HIC1(VLB506)

G1E14C7 C8

RG3,42015 16

VCC1Rs1G1
E125 26 2718 19

7FoH

VEE121

D210k
C1029
2

RG5,623 24

3621 22
HIC2(VLB506)

RG7,82015 16 VCC24Rs225 26 27
7

FoL

CN5171

CN1~3,5,6:53258-0229(molex)CN4:3428-6002LCPL (3M)

21C5

IC1‐1

IC1‐2

CN128

510k

2
1

RG1,221 22

3CN3C118 19

5VEE2C628* RG1~8, Rs1,2 and C5,6 are open at the initial state.

2G2E2G2
E2CN221CN621CN4Pin No.

Pin name

1VD

2GND

3VD

4GND

5VD

6GND

7VD

8GND

9FoH

10GND

11INH

12GND

13FoL

14

GND

15

INL

16GND

17NC

18

GND

19NC

20GND

＜Gate Drive Unit＞

GAU240P-15405

PRELIMINARY

DRIVER FOR IGBT MODULES

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

SymbolItem

Conditions

Ratings

VD

Supply voltage

DC-1 ~ 16.5

VVI

Input signal voltage

Applied between GND - INH,INL

19VI_FoFo output current

Sink and source current of Fo terminal+/-10mA-40

A40

A4000

Vrms

IOHP

Unit

Output peak current

Pulse width 3us

VisoIsolation voltage between
primary and secondary

Sine wave voltage 60Hz, for 1min

Topr

Operating temperature

No condensation allowable-40 ~ 85

deg C

Tstg

Storage temperature

No condensation allowable-40 ~ 90

deg CIdrive

Gate drive current

Gate average current (Per one circuit)

200mA

VCN3

CN3 voltage

Terminal voltage of CN3

1700

VVDC_Link

Main circuit voltage

The power supply voltage between P and N1200

VIOLP

ELECTRICAL CHARACTERISTICS
SymbolItemVD

Supply voltagef( unless otherwise noted, Ta=25 degC, VD=15V, f=3kHz)
Conditions

Limits

UnitMin

TypMaxRecommended range

14.5

15

15.5

V

Switching frequency

Recommended range
It is limited by gate average current(max:200mA/1circuit)

--

60

kHz
ohm

RG

Gate resistance

Recommended range

0.1-

-

VI

Input signal voltage

Recommended range

4.5

-

15.5

V

I_Fo

Fo output current

Recommended range

-4-

4mA

Rs*Soft discharge resistor

Recommended range

0-30ohm

VI_H

Input signal highthreshold

-

1.5

1.8

2.1

V-

0.8

1.1

1.4

V

Input “H”(High active)

13.5

15

16.5

V

VI_LVOH

Input signal low threshold
Plus bias output voltage

VOL

Minus bias output voltage

Input “L”

-8-10-13

V

tPLH“L-H” propagation time

Rg_on=Rg_off=1Ω, f=3kHz, C_load:1.6uF, VI=5V

-

0.35

-

us

tPHL

“H-L” propagation time

Rg_on=Rg_off=1Ω, f=3kHz, C_load:1.6uF, VI=5V-

0.3-usttimer

Timer

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

1-

2

msttrip

Masked time detect
short circuit

Detect pin:over than 15V or open, C5,6:open

-

2.9

-

us

UVLO+_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-

-

V

* Refer to the page of "ABOUT DISCHARG RESISTOR FOR SOFT SHUT DOWN ON ACTIVITY OF SHORT SIRCUIT PROTECTION"

3

＜Gate Drive Unit＞

GAU240P-15405

PRELIMINARY

DRIVER FOR IGBT MODULESCONNECTION EXAMPLE1
Wire cable for gate drive

Traditional std. type module

GAU240P-15405
Wire cable for high sidecollector sense

CONNECTION EXAMPLE2
Industrial LV100 type module

Wire cable for gate drive

GAU240P-15405
Wire cable for high sidecollector sense

Adaptor unit
(VLA595-02R)(4 parallel connection)

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 200mA 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.

Idrive = (Q1＋lQ2l ) x f x N It must be less than 200mA
Idrive: Gate average current
Q1: Gate charge at +15V (Read from data sheet of IGBT)
Q2: Gate charge at -9V (Read from data sheet of IGBT)
f: Switching frequency of IGBT module
N: Parallel number of IGBT module

4

Gate charge characteristic of IGBT
VGE
15V

Gate charge-9V
Q2

Q1＜Gate Drive Unit＞

GAU240P-15405

PRELIMINARY

DRIVER FOR IGBT MODULES

DEFINITION OF CHARACTERISTICSOPERATION OF SHORT CIRCUIT PROTECTIONNORMAL SWITCHING OPERATION
5V

INH, INL

50%

INH, INL

Vo1(HIC 23,24pin)
VOH

Vo1(HIC 23,24pin)

Vo2(HIC 21,22pin)

0V
-5V
ttrip

0V

ttimer

VOL
2.5V
0V

FoH,FoL

tPHL

tPLH

*Tested by RG_on=RG_off=1Ω, C_load=1.6uF
f=3kHz, ON Duty=50%

APPLICATION EXAMPLE

GAU240P-15405

IGBT Module
CN312
VIN(5V)
VD(15V)RC filter~10us
5V4.7k

4.7k
MCU

Input gate signal(5V-----15V )1234567891011121314151617181920CN4VD
GND
VD
GND
VD
GND
VD
GND
FoH
GND
INH
GND
FoL
GND
INL
GND
NC
GND
NC
GND

117

D129

VD(15V)IC23236C94C7 C823 24

CN12121 2220
HIC1(VLB506) 15 16 VCC1RG3,47518 19 VEE1C528

IC1‐1

D2110kC10IC1‐210k

17292364

RG5,623 24
21 22

HIC220(VLB506)

15 16

RG7,8
VCC2Rs225 26 27
FoL

G1E1CN521Rs1

25 26 27
FoH

C1

RG1,2718 19

528

VEE2CN221G2E2CN621C6

CN1,2:Main output connector
CN5,6:Sub connector

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) RG1~8 and Rs1,2 are 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 C1(E1) and E1(E2) without main power supply,
the short circuit protection becomes invalid.
3) C5(6) is not installed at the time of shipment.
But if needed, please solder the chosen condenser.  (rough guide is 33~100pF, 50V, ceramic)5

＜Gate Drive Unit＞

GAU240P-15405

PRELIMINARY

DRIVER FOR IGBT MODULES

OPERATION OF PROTECTION CIRCUIT(1) In case the gate voltage is “H” and the collector voltage is high,this drive unit will recognize the 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 CN4).
(2) The protection circuit reset and resort to ordinary condition
if 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.
It is possible to adjust that time by connecting the capacitor C5(C6)(If needed Ctrip, lough guide is 33~100pF)

OPERATION FLOW ON DETECTING SHORT CIRCUITSTARTDETECTION OF
SHORT CIRCUITGATE SHUTDOWNTIMER STARTOUTPUT FAULT SIGNAL

TIMER
1~2ms

LATCH & 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 timeelapses 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, gate
output 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 TIMERNoYes

INPUT SIGNAL ISOFFNoYes

CLEAR ALARM
ENABLE OUTPUT

TIMING CHART

INH,INL

VGE(IGBT)VCE(IGBT)

IC(IGBT)

VSC
Short-circuit
occurrence

Masked time (ttrip)
Timer

FoH,FoL

The latch status is canceled.

6＜Gate Drive Unit＞

GAU240P-15405

PRELIMINARY

DRIVER FOR IGBT MODULESABOUT MOUNTING GATE RESISTORS

There is not gate resistors on this unit at the initial state.
It is possible to install 4 resistors in mount area of gate resistors 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.

VCC
TIMER&
RESET

LATCH

Rg_on

DETECT

RG1,2 or 5,6
PRE
DRIVE

CN
INTERFACE

RG3,4 or 7,8G
E

Rs1 or 2

GATE SHUT DOWN

RG_offVEE

Layout pattern connection on substrate

Example 1

LATCH

TIMER&RESETDETECT

INTERFACE

PRE
DRIVE

RG1 or 5

GATE SHUT DOWN

RG3 or 7

LATCH

DETECT

RG1,2 or 5,6CN

CNGEPREDRIVETIMER&RESETExample 2

INTERFACE

Rs1 or 2

GATE SHUT DOWN

RG3,4 or 7,8
Rs1 or 2

Rg_on RG1//RG2 or RG5//RG6
Rg_off RG3//RG4 or RG7//RG8Rg_on RG1 or 5
Rg_off RG3 or 7

RG7,8

RG5,6

RG1,2

RG3,47GE

＜Gate Drive Unit＞

GAU240P-15405

PRELIMINARY

DRIVER FOR IGBT MODULESABOUT DISCHARG RESISTOR FOR SOFT SHUT DOWNON ACTIVITY OF SHORT SIRCUIT PROTECTION
When the short circuit protection works, the soft gate shut down circuit works to suppress collector surge voltage of IGBT.
When short circuit protection circuit operates, the gate voltage descends slowly by the discharge circuit in dotted lineof following figure.
In this figure, main discharge resistor is Rs. But Rs is not installed on GAU240P-15405 at the initial state.
So please solder the chosen resistor(1W class) certainly.
And please set Rs by the following equation.

Drive unit (GAU240P-15405)

Rs2

HIC(VLB506)
VCC
TIMER&
RESET

LATCH

DETECT

Rg_on
Rin

PRE
DRIVE

12Ω

INTERFACEGATE
SHUT DOWN

Rg_offRs1,2IGBT module

VEE

Rs1

Evaluated gate discharge circuit on
activity of short circuit protection

Please adjust Rs value so that it may satisfy the next equation. ( Reference guide )C x R_discharge = 2 ~ 5 (usec)
C= N x (Q1+lQ2l) / (VCC+lVEEl)
R_discharge =(12 x Rs)(12 + Rs)

+ Rg_off +Rin
N

N: Parallel number of IGBT module* If single driving, N=1
Q1 : Gate charge at Vge=+15V (Read from data sheet of IGBT)
Q2 : Gate charge at Vge=-10V (Read from data sheet of IGBT)VCC : 15lVEEl : 10
R_discharge : Total discharge resistance for gate soft shut down on activity of short circuit protection
Rin: Inner gate resistance of IGBT module

Please confirm that off surge voltage at blocking short circuit current doesn't exceedmaximum rating of VCES by actual operation finally.

8

＜Gate Drive Unit＞

GAU240P-15405

PRELIMINARY

DRIVER FOR IGBT MODULES

THE WAY TO CALCULATE GATE RESISTANCE VALUE OF PARALLEL CONNECTION
RG_ON/1elem. = Gate ON resistance value per one element = Rb + (N x Rg_on)
RG_OFF/1elem. = Gate OFF resistance value per one element = Rb + (N x Rg_off)
Example of using adaptor unit VLA595-02R
Rb: 0.1Ω (Compound value of 4 chip resistors on VLA595-02R)
N: Parallel number of IGBT module
Rg_on : Gate ON resistance value on GAU240P-15405
Rg_off : Gate OFF resistance value on GAU240P-15405

DC－AC

Drive unit (GAU240P-15405)
Reg.

VEE1

TIMER&
RESET

CN4

VCC1

UVL

LATCH

PRE
DRIVE

INTERFACE

CN3
C1

Rg_on

CN1
G1
E1

DETECTFoH
INH

C5

Rg_offRs

GATE SHUT DOWNG1E1

Rg_on

Rg_off

VD
Reg.

GND

5V

DC－AC

CN5Reg.

VCC2UVLVEE2TIMER&RESET

LATCH

DETECT

Rg_on
PRE
DRIVE

FoL
INL

C6INTERFACE

Rg_offRs

GATE SHUT DOWN

CN2G2
E2
G2
E2

Rg_on

Rg_off

CN6

Industrial LV100 type module(4 parallel connection)

GAU240P-15405

Adaptor unit
(VLA595-02R)

9

＜Gate Drive Unit＞

PRELIMINARYGAU240P-15405
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.

Maximum
ratings

To prevent any electrical damages, use Hics within the maximum ratings. The
temperature, 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.

10

＜Gate Drive Unit＞

PRELIMINARYGAU240P-15405
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 beexported 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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