Datasheet

8
LTC1642
1642fb
+
–
7FB
1.22V
0.41V
1.22V
+
–
16V
CC
14
GATE
CHARGE PUMP
25µA
23mV TO 53mV
–
+
9OV
1.22V
–
+
4ON
1.22V
–
+
V
CC
V
CC
2.7V
–
+
11
12COMP
–
COMP
+
RISING
DELAY
15µs TO
100µs
RISING
DELAY
15µs TO
100µs
RISING
DELAY
2µs
RISING
DELAY
10µs
1
CRWBR
45µA
1.5mA
1.22V
2
BRK TMR
20µA
1.22V
3
RST TMR
1642 BD
2µA
6 FAULT
10µA AT 5V
V
CC
15
–
+
–
+
SENSE
+
–
5 RESET
10µA AT 5V
V
CC
13 REF
LOGIC
–
+
–
+
10 COMPOUT
21V
21V
21V
21V
21V
21V
21V 21V
21V
21V
21V
21V
21V
BLOCK DIAGRA
W