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Hybrid IC IGBT Gate Driver VLA504 - Powerex

Hybrid IC IGBT Gate Driver VLA504 - Powerex

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<strong>Powerex</strong>, Inc., 173 Pavilion Lane, Youngwood, Pennsylvania 15697-1800 (724) 925-7272<br />

<strong>VLA504</strong><br />

<strong>Hybrid</strong> <strong>IC</strong> <strong>IGBT</strong> <strong>Gate</strong> <strong>Driver</strong><br />

Application Circuit<br />

<strong>VLA504</strong><br />

+5V<br />

14 13 10 9 8 6 5 4 3 2 1<br />

+<br />

D1<br />

CONTROL<br />

FAULT<br />

B1<br />

PS2501<br />

+ C1<br />

+<br />

C2<br />

C trip<br />

30V<br />

+<br />

V CC<br />

4.7k<br />

R G<br />

18V<br />

18V<br />

G<br />

<strong>IGBT</strong><br />

MODULE<br />

C<br />

+<br />

V EE<br />

E<br />

E<br />

Component Selection:<br />

Design Description<br />

V CC , V EE +15V/-10V Typical, See data sheet for usable limits<br />

R G<br />

Adjust for application requirements. See <strong>IGBT</strong> module application notes<br />

for recommendations and power rating<br />

C1, C2 10µF-100µF 25V low impedance electrolytic<br />

D1<br />

Ultra fast recovery t rr V ces (<strong>IGBT</strong>)<br />

C trip 0-200pF adjusts desaturation trip time (t trip )<br />

B1<br />

CMOS Buffer 74HC04 or similar – Must actively pull high to maintain noise immunity<br />

Single Supply Operation<br />

Notes:<br />

(1) Power supply decoupling capacitors C1 and C2 should be connected as close as possible to the pins of the<br />

gate driver and must be sized to have appropriate ESR and ripple current capability for the <strong>IGBT</strong> being driven.<br />

(2) C trip should be connected as close as possible to the pins of the gate driver to avoid noise pick-up.<br />

(3) All zener diodes 1W, all resistors 0.25W unless otherwise noted.<br />

<strong>VLA504</strong><br />

+5V<br />

14 13 10 9 8 6 5 4 3 2 1<br />

+<br />

D1<br />

CONTROL<br />

FAULT<br />

B1<br />

PS2501<br />

+ C1<br />

+<br />

C2<br />

C trip<br />

30V<br />

+<br />

2.7k<br />

4.7k<br />

R G<br />

18V<br />

18V<br />

G<br />

<strong>IGBT</strong><br />

MODULE<br />

C<br />

V CC<br />

8.2V<br />

E<br />

E<br />

Rev. 2/06<br />

3

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