Datasheet

LTC2924
18
2924fb
Typical applicaTions
Power-On Power-Off
2-Supply Sequencer with Delayed Sense Pin, One Channel Unused
OUT4
OUT3
OUT2
OUT1
ON
FAULT
DONE
TMR
V
CC
IN4
IN3
IN2
IN1
PGT
HYS
GND
LTC2924
DC/DC
3.3V
Q2
10k 10k
150nF
0.1µF
1M
PARASITIC
RESISTANCE
D1
Q1
SYSTEM
CONTROLLER
SHDN
5V
SENSE
+
MODULE
OUT
+
V
OUT
3.3V
V
OUT
5V
V
ON
≥ 4.64V
V
OFF
≤ 4V
V
ON
≥ 2.98V
V
OFF
≤ 2.65V
49.9k
D1: 1N5711
Q1, Q2: IRL3714S
9.83k
64.9k 33.2k
8.55k
150nF
2924 TA05a
1V/DIV
2V/DIV
25ms/DIV
2924 TA05b
5V
3.3V
ON
TMR
DONE
1V/DIV
REMOTE SENSE ENABLE
1V/DIV
2V/DIV
25ms/DIV
2924 TA05c
5V
3.3V
ON
TMR
1V/DIV
REMOTE SENSE DISABLE