VLA500K-01R 데이터 시트보기 (PDF) - Powerex
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VLA500K-01R Datasheet PDF : 6 Pages
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Powerex, Inc., 200 E. Hillis Street, Youngwood, Pennsylvania 15697-1800 (724) 925-7272
VLA500K-01R
Hybrid IC IGBT Gate Driver +
DC/DC Converter
Application Circuit
+15V
Common
+5V
Control
Fault
VLA500K-01R
12345 67
+
C1
B1
R4
C4
OP1
R3
17 18 19 20 21 22 23 24 25 26 27 28 29 30
D1
R2
DZ1
CS Ctrip
R1
++
RG
G
C2
C3
DZ2
DZ3
E
IGBT MODULE
Component Selection:
Design
Typical Value
D1
0.5A
DZ1
30V, 0.5W
DZ2, DZ3
18V, 1.0W
C1
100µF, 35V
C2, C3
1mF, 35V
C4
0.01µF
CS
0-1000pF
Ctrip
R1
0-200pF
4.7kΩ, 0.25W
R2
3.3kΩ, 0.25W
R3
1kΩ, 0.25W
R4
4.7kΩ, 0.25W
OP1
NEC PS2501
B1
CMOS Buffer
Description
VCE detection diode – fast recovery, Vrrm > VCES of IGBT being used (Note 1)
Detect input pin surge voltage protection (Note 2)
Gate surge voltage protection
VD supply decoupling – Electrolytic, long life, low Impedance, 105°C (Note 3)
DC/DC output filter – Electrolytic, long life, low Impedance, 105°C (Note 3,4)
Fault feedback signal noise filter
Adjust soft shutdown – Multilayer ceramic or film (see application note)
Adjust trip time – Multilayer ceramic or film (see application note)
Fault sink current limiting resistor
Fault signal noise suppression resistor
Fault feedback signal noise filter
Fault feedback signal pull-up
Opto-coupler for fault feedback signal isolation
74HC04 or similar – Must actively pull high to maintain noise immunity
Notes:
(1) The VCE detection diode should have a blocking voltage rating equal to or greater than the VCES of the IGBT
being driven. Recovery time should be less than 200ns to prevent application of high voltage to Pin 30.
(2) DZ1 is necessary to protect Pin 30 of the driver from voltage surges during the recovery of D1.
(3) Power supply input and output decoupling capacitors should be connected as close as possible to the pins of the gate driver.
(4) DC-to-DC converter output decoupling capacitors must be sized to have appropriate ESR and ripple current
capability for the IGBT being driven.
Rev. 5/07
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