LT1158
TYPICAL APPLICATION
12V
1N4148
+
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
1000μF
BOOST DR
BOOST
IRCZ44
+
V
T GATE DR
T GATE FB
T SOURCE
+
0.01μF
6.2k
10μF
0.1μF
BIAS
+
–
ENABLE
FAULT
INPUT
GND
+
10μF
LT1158
12V
55W
+
MBR330
SENSE
51Ω
–
ON/OFF
SENSE
+
V
B GATE FB
B GATE DR
I
t
t
: 10A
SC
SHUTDOWN
= 50ms
= 600ms
LT1158 F18
RESTART
Figure 18. High Current Lamp Driver with Short-Circuit Protection
1158fb
LT 0309 REV B • PRINTED IN USA
LinearTechnology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
22
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