LT4254
16
4254fb
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com
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© LINEAR TECHNOLOGY CORPORATION 2003
LT 1205 REV B • PRINTED IN USA
Figure 16. High dV/dT MOSFET Turn-On Protection Circuit
TYPICAL APPLICATIO
U
4254 F16
R5
0.033Ω
LT4254
SENSEV
CC
GATE
FB
PWRGD
RETRY
UV
OV
TIMER
GND
V
CC
(SHORT PIN)
Q1
IRF530
D1
CMPZ5241B
11V
R3
40.2k
R2
40.2k
R1
324k
R7
100Ω
R9
40.2k
R6
10Ω
R8
140k
V
OUT
IN4148W
R4
27k
C
L
100µF
C2
33nF
C3
0.1µF
C1
10nF
OPEN
UV = 20V
OV = 40V
PWRGD = 18V
GND
