VLA542-01R
Powerex, Inc., 173 Pavilion Lane, Youngwood, Pennsylvania 15697 (724) 925-7272
www.pwrx.com
IGBT Gate Driver
A
B
G
H
J
E
D
1
F
D
14
K
C
Description:
VLA542-01R is a hybrid
integrated circuit designed for
driving n-channel IGBT modules
in any gate-amplifier application.
This device is a fully isolated gate
drive circuit with an optically
isolated gate drive amplifier that
provides an over-current protection
function based on desaturation
detection.
Features:
£
Electrical Isolation Between
Input and Output via an
Opto-coupler (V
iso
= 2500V
rms
for 1 Minute)
4 VCC
LATCH
Vl+ 14
DETECT
CIRCUIT
2 CONTROL PIN
FOR ttrip
1 DETECT
TIMER &
RESET CIRCUIT
INTERFACE
OPTO
COUPLER
5 VO
GATE
SHUTDOWN
CIRCUIT
£
Two Supply Drive Topology
£
Built in Short-Circuit Protection
with a pin for Fault Output
240
Vl- 13
8 FAULT
OUTPUT
6 VEE
£
CMOS Compatible Input
Interface
Applications:
£
To Drive IGBT Modules for
Inverter or AC Servo Systems
Application.
Recommended IGBT Modules:
V
CES
= 600V Series up to
600A Class
V
CES
= 1200V Series up to
400A Class
Pins 3, 7, 9, 10 : NC
Circuit Diagram
Dimensions
A
B
C
D
E
F
G
H
J
K
Inches
1.73 Max.
1.02 Max.
0.31 Max.
0.21 Max.
0.1
Millimeters
44.0 Max.
26.0 Max.
8.0 Max.
5.5 Max.
2.54
0.02+0.006/-0.004 0.5+0.15/-0.1
0.17±0.06
4.5±1.5
0.01+0.008/-0.004 0.25+0.2/-0.1
0.21 Max.
0.12 Max.
5.5 Max.
3.0 Max.
05/15 Rev. 0
1
Powerex, Inc., 173 Pavilion Lane, Youngwood, Pennsylvania 15697 (724) 925-7272
www.pwrx.com
VLA542-01R
IGBT Gate Driver
Absolute Maximum Ratings,
T
a
= 25°C unless otherwise specified
Characteristics
Supply Voltage (DC)
Supply Voltage (DC)
Input Signal Voltage (Applied Between; Pin 13 and Pin 14, 50% Duty Cycle, Pulse Width 1ms)
Output Voltage (When Output Voltage is "H")
Output Peak Current (Pulse Width 2μs)
Isolation Voltage (Sine Wave Voltage 60Hz, for 1 min.)
Case Temperature
Operating Temperature (No Condensation Allowable)
Storage Temperature (No Condensation Allowable)
Fault Output Current (Applied at Pin 8)
Input Voltage at Pin 1 (Applied at Pin 1)
Symbol
V
CC
V
EE
V
I
V
O
I
OHP
I
OLP
V
iso
T
C
T
opr
T
stg
I
FO
V
R1
Rating
18
-15
-1 ~ +7
V
CC
-5
5
2500
95
-20 ~ +70
-40 ~ 100
*1
20
50
Units
V
V
V
V
A
A
V
rms
°C
°C
°C
mA
V
Electrical Characteristics,
T
a
= 25°C, V
CC
= 15V, V
EE
= -10V, R
G
= 3.3Ω
Characteristics
Supply Voltage
Supply Voltage
Pull-up Voltage on Primary Side
"H" Input Signal Current
Switching Frequency
Gate Resistance
"H" Output Voltage
"L" Output Voltage
"L-H" Propagation Time
"L-H" Rise Time
"H-L" Propagation Time
"H-L" Fall Time
Timer
Fault Output Current
Controlled Time Detect Short-Circuit 1
Controlled Time Detect Short-Circuit 2
*2
SC Detect Voltage
Symbol
V
CC
V
EE
V
IN
I
IH
f
R
G
V
OH
V
OL
t
PLH
t
r
t
PHL
t
f
t
timer
I
FO
t
trip1
t
trip2
V
SC
Test Conditions
Recommended Range
Recommended Range
Recommended Range
Recommended Range
V
IN
= 5V
Recommended Range
Recommended Range
—
—
I
IH
= 13mA
I
IH
= 13mA
I
IH
= 13mA
I
IH
= 13mA
Between Start and Cancel
(Under Input Sign "OFF")
Applied at Pin 8, R = 4.7kΩ
Pin 1: 15V or more, Pin 2: Open
Pin 1: 15V or more, Pins 2-4: 10pF
(Connective Capacitance)
Collector Voltage of IGBT
15
—
—
V
*1 Differs from H/C condition.
*2 The length of the capacitor from Pin 2 to Pin 4 should be less than 5cm.
Min.
14
-7
4.75
10
—
—
2
13
-8
0.2
—
0.2
—
1
—
—
—
Typ.
15
—
5
13
13
—
—
14
-9
0.4
0.4
0.4
0.3
—
5
2.6
3
Max.
17
-12
5.25
16
—
20
—
—
—
1
1
1
1
2
—
—
—
Units
V
V
V
mA
mA
kHz
Ω
V
V
μs
μs
μs
μs
ms
mA
μs
μs
2
05/15 Rev. 0
Powerex, Inc., 173 Pavilion Lane, Youngwood, Pennsylvania 15697 (724) 925-7272
www.pwrx.com
VLA542-01R
IGBT Gate Driver
Definition of Characteristics
SWITCHING OPERATION
OPERATION OF SHORT CIRCUIT PROTECTION
INPUT
VI
INPUT
0V
VI
tr
tf
90%
50%
OUTPUT
0V
VO
-5V
ttrip 1, 2
10V
PIN 8
0V
OUTPUT
ttimer
10V
OUTPUT
VO
10%
tPLH
tPHL
Power Supply for IGBT Driver
POWER SUPPLY FOR IGBT DRIVER
Gate Charge Characteristic of IGBT
When choosing the gate power supply, choose
a product that can supply the current capacity
provided by the following calculation.
GATE CHARGE CHARACTERISTIC OF IGBT
I
O
I
O
I
drive
I
CC
=
:
:
:
(I
drive
+ I
CC
) x (1 + Margin)
Output Current of Gate Power Supply
Gate Average Current
Stable Bias Current of IGBT Driver
(Refer to the dissipation current -
supply voltage characteristics
of this datasheet.)
Over 0.3
(Q
1
+ IQ
2
I) x f
Gate Charge on Plus Bias
(Refer to the IGBT datasheet).
Gate Charge on Minus Bias
(Refer to the IGBT datasheet).
IGBT Switching Frequency
For IGBT driving, an isolated power supply (+15V and
approximately -10V) is necessary for every IGBT
AROUND -10V)
FOR IGBT DRIVING, ISOLATED POWER SUPPLY (+15V AND
driver.
IS NECESARY TO EVERY IGBT DRIVER.
IGBT MODULE
+15V
IO
IGBT DRIVER
VCC
P
VGE
+15V
VEE
ISOLATED
POWER
SUPPLY
-7V ~ -10V
+15V
IO
VCC
IGBT DRIVER
U, V,
or W
Margin :
I
drive
:
Q
1
:
Q
2
:
:
GATE
CHARGE
MINUS BIAS
VOLTAGE
Q2
Q1
VEE
-7V ~ -10V
f
N
Timing Chart
INPUT
SIGNAL (VI)
TIMING CHART
SOFT
SHUTDOWN
PIN 5
OUTPUT (VO)
VCE OF IGBT
OCCURRENCE OF
SHORT-CIRCUIT
IC OF IGBT
FAULT
OUTPUT
OF PIN 8
MASK TIME (ttrip)
ttimer
PROTECTION
OPERATION
IS CLEARED
VSC (SC
DETECTION
POINT)
05/15 Rev. 0
3
Powerex, Inc., 173 Pavilion Lane, Youngwood, Pennsylvania 15697 (724) 925-7272
www.pwrx.com
VLA542-01R
IGBT Gate Driver
Operation of Protection Circuit
1. In the case where the gate voltage is "H" and the collector voltage is
high, the hybrid IC will recognize a short-circuit condition and
immediately reduce the gate voltage. Additionally, it will output an
error signal ("L") which indicates that the protection circuit is
operating at the same time from Pin 8.
2. The protection circuit resets if the input signal is "OFF" when the
premised 1~2msec passed. ("OFF" period needs 10μm or more.)
3. When the output rises, the controlled time detect short-circuit
(typically 2.6μs) is set up so that the on-time of the IGBT can be
secured properly. It is possible to adjust this time by connecting the
capacitor (C
trip
) between Pin 2 and Pin 4.
Application Circuit Example
4.7k
8
1
VIN (5V)
2
Ctrip
14
VLA542
13
HC04 ETC.
5
4
100 F
D1
DZ1
(30V)
Rg
+
VCC
+
VEE
Operation Flow on Detecting Short Circuit
START
100 F
6
DETECTION OF
SHORT-CIRCUIT
VCC = 15V
VEE = 10V
Ctrip = 0~47pF (Rough Guide, 50V, Ceramic)
D1 : Fast Recovery Diode (trr ≤ 0.2 s)
RP1H (SanKen) etc.
GATE SHUTDOWN
TIMER START
OUTPUT ALARM
1 ~ 2ms
Precaution
1. Voltage compensation capacitors are expected to be located as close
as possible to the hybrid IC.
2. D
1
requires approximately the same voltage rating as the power
modules.
3. If reverse recovery time of D
1
is long, Pin 1 is applied a high voltage.
In that case, a zener diode between Pin 1 and Pin 6 is inserted for
necessary protection as shown above.
4. In case Pin 2 is operating, the C
trip
is expected to be wired as close
as possible to Pin 2 and Pin 4 (less than 5cm).
END OF TIMER
NO
YES
INPUT SIGN
IS “OFF”
NO
Application Example of Single Power Supply
4.7k
YES
CLEAR ALARM
ENABLE OUTPUT
NOTE: Output voltage with protection
circuit operating is about -lVEEl + 2V
8
1
VIN (5V)
2
Ctrip
14
VLA542
13
5
4
100 F
DZ1
(30V)
Rg
D1
+
R
VCC
100 F
6
+
DZ2
VCC = 24V
DZ2 : 8.2V, 1/2W
R : 2.7k ~ 3.3k
4
05/15 Rev. 0
Powerex, Inc., 173 Pavilion Lane, Youngwood, Pennsylvania 15697 (724) 925-7272
www.pwrx.com
VLA542-01R
IGBT Gate Driver
1.0
PROPAGATION DELAY TIME “L-H”, t
PLH
, ( s)
PROPAGATION DELAY TIME “H-L”, t
PHL
, ( s)
t
PLH
, t
PHL
-T
a
CHARACTERISTICS
(TYPICAL)
PROPAGATION DELAY TIME “L-H”, t
PLH
, ( s)
PROPAGATION DELAY TIME “H-L”, t
PHL
, ( s)
1.0
0.8
0.6
0.4
0.2
0
3.5
t
PLH
, t
PHL
-VI
CHARACTERISTICS
(TYPICAL)
V
CC
= 15V
V
EE
= -10V
R
G
= 3.3
T
a
= 25°C
LOAD = CM400DY-12NF
0.8
0.6
0.4
0.2
0
-20
V
CC
= 15V
V
EE
= -10V
R
G
= 3.3
V
IN
= 5V
LOAD = CM400DY-12NF
t
PLH
t
PHL
t
PLH
t
PHL
0
20
40
60
80
4.0
4.5
5.0
5.5
6.0
AMBIENT TEMPERATURE, T
a
, (°C)
INPUT SIGNAL VOLTAGE, VI, (VOLTS)
t
trip1
, t
trip2
-T
a
CHARACTERISTICS
(TYPICAL)
t
trip
-C
trip
CHARACTERISTICS
(TYPICAL)
6.0
5.0
4.0
3.0
2.0
1.0
-20
V
CC
= 15V
V
EE
= -10V
CONTROLLED TIME DETECT
SHORT CIRCUIT, t
trip
, ( s)
8
7
6
5
4
3
2
1
60
80
0
0
CONTROLLED TIME DETECT
SHORT CIRCUIT, t
trip1
, t
trip2
, ( s)
V
CC
= 15V
V
EE
= -10V
T
a
= 25°C
t
trip1
(C
trip
= 0pF)
t
trip2
(C
trip
= 10pF)
0
20
40
20
40
60
80
100
AMBIENT TEMPERATURE, T
a
, (°C)
CONNECTIVE CAPACITANCE, C
trip
, (pF)
(PIN: 2-4)
05/15 Rev. 0
5
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