＜Gate Drive Unit＞

VLB516-01R

PRELIMINARY

DRIVER FOR IGBT MODULESFEATURESVLB516-01R (Image)>Single channel simple and easy gate drive system>Wire connection to IGBT
>Built in the isolated DC-DC converter for gate drive>Output peak gate current is +/-40A(max)>Built in short circuit protection with soft shut down
>Electrical isolation voltage is 6000Vrms (for 1 minute)>Fiber optic interface

TARGETED IGBT MODULES
VCES = 1700V series up to 3600A class HVIGBT modules

APPLICATIONS

Medium voltage inverter , HVDC , Traction or Wind power etc.

OUTLINE

Clearance
Input side - Output side  21mm

9max

BLOCK DIAGRAM
Transformer

CN1 VD

VCC (TP3)UVL

Reg.
E (TP4)

DC‐AC

Ctrip
(C63)
VEE (TP5)CLATCH & Timer
PRE
DRIVE

FOR1
INTER
FACE

Vo1
(TP1)
Vo2
(TP2)

Rg_on

CN3

G

Rg_off

E

SHUT DOWNFAULT OUT

Fo(TP6)

HFBR‐1523Z

CN2

DETECTReg.

HFBR‐2522Z
FOT1

3max

Note
1) There is not Rg_on,Rg_off and RG5at the initial state.
So please solder the chosen resistors.

(TP8)
GND
(TP7)

Creepage
21mm

RG5

Fo
Normal operation  “H”
Protection operation  “L”

CN3 : Main output connector
CN4 : Sub connector

G
E
CN4

TP : Test Pad

Sep.2021

1

＜Gate Drive Unit＞

VLB516-01R

PRELIMINARY

DRIVER FOR IGBT MODULES

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

SymbolParameter

Conditions

VD

Supply voltage

Between VD and GND

IOHP

Ratings

Unit

16

V

-40

A

40

A

Output peak current

Pulse width 3us

Viso

Isolation voltage between
primary and secondary

Sine wave voltage 60Hz, for 1min

6000

Vrms

Tc

Case temperature

Surface temperature of power MOSFET

100

deg C

Topr

Operating temperature

No condensation allowable-40 ~ 85

deg C

Tstg

Storage temperature

No condensation allowable-40 ~ 85

deg C

IOLP

IdriveGate drive current

Gate average current

200

mA

VC

Peak collector voltage

Peak terminal voltage of CN2

1700

V

ELECTRICAL CHARACTERISTICS
SymbolParameter

VD

Supply voltagef
RG(unless otherwise noted, Ta=25℃,VD=15V, RG_on=RG_off=1Ω, f=3kHz)
Conditions

Limits

Unit

Min

Typ

Max

Recommended range

14.5

15

15.5

V

Switching frequency

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

-

-

10

kHz

Gate resistance

Recommended range (Total compound value)

0.1

-

-

Ω

Rs

Soft discharge resistor

Value of RG5, Recommended range

0

-

30

Ω

VOH

Plus bias output voltage

Idrive = 0 ~ 200mA

13.5

15

16.5

V

VOL

Minus bias output voltage

Idrive = 0 ~ 200mA

-

-13

-

V

tPLH

“L-H” propagation time

IF=30mA, Fiber length=50cm, C_load:1.6uF

-

TBD

-

us

tPHL

“H-L” propagation time

IF=30mA, Fiber length=50cm, C_load:1.6uF

-

TBD

-

us

ttimerTimer

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

1

-

2

ms

ttrip

Masked time detect
short circuit

Detect terminal (CN2) : over than 15V or open

-

3.7

-

us

VSC

SC detect voltage

Collector voltage of IGBT

45

-

-

V

UVLO+_VCC

Under voltage lock out(Operation start)

VCC voltage

-

12.6

-

V

UVLO-_VCC

Under voltage lock out(Operation stop)

VCC voltage

-

11.7

-

V

2

＜Gate Drive Unit＞

VLB516-01R

PRELIMINARY

DRIVER FOR IGBT MODULESCONNECTION EXAMPLE1
1.7kV class HVIGBT Std. pkg.

Wire cable for collector sense

VLB516CN2

CN1
Input 15V
FOR1

CN4
CN3

FOT1
Twist pair wire cablefor gate drive

Optical fiber cablefor gate signal
Optical fiber cablefor fault output

CN3 : Main output connector
CN4 : Sub connector

CONNECTION EXAMPLE2Gate drive unit VLB516(High side)
Wire cable for gate drive*Less than 20cm (rough guide)

1.7kV class LV100 pkg. (2 parallel)
Adaptor Unit
(VLA595-02R)

Gate drive unit VLB516(Low side)
Wire cable for low sidecollector sense
Wire cable for high sidecollector sense

Note) When gate drive cable exceeds 20cm, please make it a twisted pair.

3

＜Gate Drive Unit＞

VLB516-01R

PRELIMINARY

DRIVER FOR IGBT MODULESCONNECTION EXAMPLE3
Gate drive unit VLB516(High side)

Wire cable for gate drive

1.7kV class LV100 pkg. (4 parallel)

Gate drive unit VLB516(Low side)
Wire cable for low sidecollector sense
Wire cable for high sidecollector sense

Adaptor Unit
(VLA595-02R)

Note) When gate drive cable exceeds 20cm, please make it a twisted pair.

4

＜Gate Drive Unit＞

VLB516-01R

PRELIMINARY

DRIVER FOR IGBT MODULESCONNECTION EXAMPLE4VLB516 (High side)(2 parallel of LV100)

Wire cable for gate drive*Less than 20cm (rough guide)

VLB516 (Low side)

Adaptor Unit
(VLA595-02R)

Wire cable for high sidecollector sense

Wire cable for low sidecollector sense

Note) When gate drive cable exceeds 20cm, please make it a twisted pair.

VLB516 (High side)( 4 parallel of LV100)

VLB516 (Low side)

Adaptor Unit
(VLA595-02R)

5

＜Gate Drive Unit＞

VLB516-01R

PRELIMINARY

DRIVER FOR IGBT MODULESAPPLICATION EXAMPLE1( single connection1 of LV100 )CN1 VD

VCC (TP3)

(TP8)
UVL
GND
(TP7)

Reg.
E (TP4)

DC‐AC
Ctrip
VEE (TP5)

CN2

L/F

DETECT

Reg.

Vo1
(TP1)
Vo2
(TP2)

LATCH & Timer
PRE
DRIVE

FOR1
INTER
FACE
SHUT DOWNFAULT OUT

Rg_on

CN3

CN2

Rg_off

3
2
1

TLAC

3
2
1

CN1

RG5

FOT1

VLB516‐01R

Fo(TP6)

CN1 VD

CN4

VLA595VCC (TP3)

(TP8)
UVL
GND
(TP7)

Reg.
E (TP4)

DC‐AC
Ctrip
VEE (TP5)

CN2

L/F

DETECTReg.

LATCH & Timer
PRE
DRIVE

FOR1
INTER
FACE

Vo1
(TP1)
Vo2
(TP2)

SHUT DOWNFAULT OUT

Rg_on

CN3

Rg_off

RG5

FOT1
Fo(TP6)

VLB516‐01R

6

CN4

CN4

3
2
1

TLAC

3
2
1

CN3

＜Gate Drive Unit＞

VLB516-01R

PRELIMINARY

DRIVER FOR IGBT MODULESAPPLICATION EXAMPLE2( single connection2 of LV100 )CN1 VD

VCC (TP3)

(TP8)
UVL
GND
(TP7)

Reg.
E (TP4)

DC‐AC
Ctrip
VEE (TP5)

CN2

L/F

DETECT

Reg.

Vo1
(TP1)
Vo2
(TP2)

LATCH & Timer

PRE
DRIVE

FOR1
INTER
FACE
SHUT DOWNFAULT OUT

Rg_on

CN3

CN2

Rg_off

3
2
1

TLAC

3
2
1

CN1

RG5

FOT1

VLB516‐01R

Fo(TP6)

CN1 VD

CN4

VLA595VCC (TP3)

(TP8)
UVL
GND
(TP7)

Reg.
E (TP4)

DC‐AC
Ctrip
VEE (TP5)

CN2

L/F

DETECTReg.

LATCH & Timer

PRE
DRIVE

FOR1
INTER
FACE

Vo1
(TP1)
Vo2
(TP2)

SHUT DOWNFAULT OUT

Rg_on

CN3

Rg_off

RG5

FOT1
Fo(TP6)

VLB516‐01R

7

CN4

CN4

3
2
1

TLAC

3
2
1

CN3

＜Gate Drive Unit＞

VLB516-01R

PRELIMINARY

DRIVER FOR IGBT MODULESAPPLICATION EXAMPLE3( 3 parallel connection of LV100 )CN1 VD

VCC (TP3)

(TP8)
UVL
GND
(TP7)

Reg.
E (TP4)

DC‐AC
Ctrip
VEE (TP5)

CN2

L/F

DETECT

Reg.

Vo1
(TP1)
Vo2
(TP2)

LATCH & Timer

PRE
DRIVE

FOR1
INTER
FACE
SHUT DOWNFAULT OUT

Rg_on

CN3

CN2

Rg_off

3
2
1

TLAC

L/F

3
2
1

CN1

CN2

3
2
1

TLAC

L/F

3
2
1

CN1

CN2

3
2
1

TLAC

3
2
1

CN1

RG5

FOT1

VLB516‐01R

Fo(TP6)

CN1 VDCN4

VCC (TP3)

(TP8)
UVL
GND
(TP7)

VLA595

VLA595

VLA595

L/F

L/F

L/F

Reg.
E (TP4)

DC‐AC
Ctrip
VEE (TP5)CN2DETECTReg.

LATCH & Timer
PRE
DRIVE

FOR1
INTER
FACE
SHUT DOWNFAULT OUT

Vo1
(TP1)
Vo2
(TP2)

Rg_on

CN3

Rg_off

CN4

3
2
1

TLAC

RG5

FOT1
Fo(TP6)

VLB516‐01R

CN4

8

3
2
1

CN3

CN4

3
2
1

TLAC

3
2
1

CN3

CN4

3
2
1

TLAC

3
2
1

CN3

＜Gate Drive Unit＞

VLB516-01R

PRELIMINARY

DRIVER FOR IGBT MODULES

CALCULATION FOR GATE DRIVE CURRENT (GATE AVERAGE CURRENT)
Gate charge characteristic of IGBTThis product has isolated DCDC converter built in for gate drive.
The maximum output average current is 200mA.
This current means maximum gate average current.
When you decide the switching frequency,
please check the gate average current by next formula.

VGE
15V

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 -13V (Read from data sheet of IGBT)f: Switching frequency of IGBTN
: Parallel number of IGBT module

Gate charge
-13V

Q2

Q1

DEFINITION OF CHARACTERISTICS
Switching operation

Operation of short circuit protection
IF(Primary)

30mA
IF
50%
(Primary)

Vo1
(TP1)

0V
‐10V

VOH

Vo1
(TP1)

Vo2
(TP2)

Vo2
(TP2)

ttrip

ttimer

0V
10V
Fo
(TP6)

VOL
tPHL

tPLH

0V

Fault output(Primary)

Tested by
f=3kHz, Duty=50%

INTERFACE APPLICATION EXAMPLEVLB516

CN1 VD
VD
15V

5V

IF(30mA)

VCC (TP3)

(TP8)
UVL
GND
(TP7)

Reg.
E (TP4)

DC‐AC

Ctrip
(C63)
VEE (TP5)

HFBR-1522Z etc.
LED
Gate signal drive
circuit

DETECTReg.

LATCH & Timer
PRE
DRIVE

FOR1
INTER
FACE
SHUT DOWNFAULT OUTHFBR‐2522Z
FOT1

5V
4.7k
Fault output

Fo(TP6)

HFBR‐1523Z

0.1μF
HFBR-2523Z etc.
Optical fiber cablefor fault signal

Optical fiber cablefor gate signal

9

Vo1
(TP1)
Vo2
(TP2)

Rg_on
Rg_offRG5

＜Gate Drive Unit＞

VLB516-01R

PRELIMINARY

DRIVER FOR IGBT MODULES

OPERATION OF PROTECTION CIRCUIT(1) In case the input gate signal is “ON” and the collector voltage
is high, this drive unit will recognize the circuit as short circuit
OPERATION FLOW ON DETECTING SHORT CIRCUIT
and reduce the gate voltage. Besides, put out fault signal (”L”)
which inform that protection circuit is operating at the same
START
time from Fo terminal (Test Pad6).
(2) The protection circuit reset and resort to ordinary condition
if input signal is “OFF” when the premised 1~2msec passed.
DETECTION OF( “OFF” period needs 10us or more )SHORT CIRCUIT(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.
The ttrip can be extended by adding a capacitor to C63 on unit.
(If needed C63, lough guide is 22~47pF)
GATE SHUTDOWNTIMER STARTLATCH & TIMER RESET SYSTEM IN SHORTOUTPUT FAULT SIGNAL
TIMER
CIRCUIT PROTECTION CIRCUIT
1 ~ 2ms
Once the short-circuit protection circuit starts, it shuts down
the gate output and keeps alarm output, causing the latch
status. This status is canceled if the input signal is OFF
END OF TIMER
when specific time elapses after the activation of the shortcircuit 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.
INPUT SIGNAL IS
As mentioned above, on the latch & timer reset system, theOFFlatch status is resulted after activation of the protection
circuit and shutdown of the gate output. Therefore, during
this period, gate output is not made no matter how much
CLEAR ALARM
input signals are received. For this reason, it is possible to
ENABLE OUTPUT
safely stop the entire equipment by sending error signals to
the microcomputer during this period to stop all gate signals.

TIMING CHART
IF(Primary)

VGE(IGBT)

VCE(IGBT)IC(IGBT)

VSC
Short-circuit
occurrence

Masked time (ttrip)
Timer

Fo(TP6)The latch status is canceled.
Fault output(Primary)10

＜Gate Drive Unit＞

VLB516-01R

PRELIMINARY

DRIVER FOR IGBT MODULESABOUT MOUNTING GATE RESISTORS FOR NORMAL SWITCHING

There is not Gate Resistors on this unit at the initial state.
It is possible to install up to 4 resistors in mount area of gate resistor for normal switching.
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.
RG1

Drive
circuit

Vo1
Vo2

CN3

RG2

G

RG3

E

RG4

Layout pattern connection on substrate*Refer to next page

: Gate resistor mount part (Initial is open)

Example 2

Example 1

Drivecircuit

Vo1

CN3

RG1
RG3

Drive
circuit

G
E

Vo2

Vo1
Vo2

Rg_on RG1
Rg_off RG3

RG1
RG2

CN3

G

RG3

E

RG4

Rg_on RG1//RG2
Rg_off RG3//RG4

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)Rb: Balance resistance value on adaptor unitN
: Parallel number of modules
Rg_on : Gate ON resistance value on VLB516
Rg_off : Gate OFF resistance value on VLB516

VD
(TP8)
UVL
GND
(TP7)

Rg_on

Reg.
E (TP4)

DC‐AC

Ctrip
(C63)
VEE (TP5)CLATCH & Timer

FOR1
INTER
FACE

HFBR‐2522Z
FOT1

CN2

DETECT

Reg.

PRE
DRIVE

Note)

SHUT DOWNFAULT OUT

Vo1
(TP1)
Vo2
(TP2)

CN3

G
E
RG5

G
E

Fo(TP6)

HFBR‐1523Z

11

Rg_offCN4

＜Gate Drive Unit＞

VLB516-01R

PRELIMINARY

DRIVER FOR IGBT MODULESABOUT DISCHARGE RESISTOR FOR SOFT SHUT DOWNON ACTIVITY OF SHORT CIRCUIT 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 RG5. But RG5 is not installed in VLB516 at the initial state.
So please solder the chosen resistor(1W class) certainly.
And please set RG5 by the following equation.

VCC
TIMER&
RESET

LATCH

CN2

DETECT

RG_on
Rin

PRE
DRIVE

INTERFACE

RG_off

CN4

ModuleRG5GATE
SHUT DOWN

CN1

CN3

VEE

RG5

Equivalent gate discharge circuit on
activity of short circuit protection

Please adjust RG5 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 =RG5 + 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=-13V (Read from data sheet of IGBT)VCC : 15lVEEl : 13
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 exceed
maximum rating of VCES by actual operation finally.

12

＜Gate Drive Unit＞

VLB516-01R

PRELIMINARY

DRIVER FOR IGBT MODULESDETAILS OF CONNECTOR
CN3: 53259-0229 (Molex)

CN1 : 53259-0229 (Molex)
Pin No.

SignalPin No.

Signal1

VD

1Emitter

2

GND

2

Gate

CN2: 53259-0229 (Molex)

CN4: 53259-0229 (Molex)

Pin No.

SignalPin No.

Signal1

Collector

1

Emitter2

Collector

2

Gate

pin2
CN2 pin1
Screw hole Φ3.5mm x6
pin2
CN4 pin1
CN3 pin2
pin1

pin1
pin2 CN1

We recommend following parts or equivalent product for wire cable
HOUSINGTERMINAL

Maker

51067-0200

50217-8100

Molex

THE INSTALLATION OF THE DRIVE UNIT ON METALLIC CASE
When fixing this drive unit on a metallic case, please use the spacer made of the resin.
Screw& washerScrew& washer

Metal caseSpacer made of the resin

13

＜Gate Drive Unit＞

PRELIMINARY

VLB516-01R
DRIVER FOR IGBT MODULESFOR SAFETY USINGGreat detail and careful attention are given to the production activity of Hics, such as the development, the quality of
production, 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 is
minimal, 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.

14

＜Gate Drive Unit＞

PRELIMINARY

VLB516-01R
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.

15