Datasheet

LTC2924
19
2924fb
Typical applicaTions
OUT1
OUT2
OUT3
OUT4
ON
DONE
FAULT
TMR
PGT
IN1
IN2
IN3
IN4
HYS/CFG
LTC2924
V
CC
GND
150nF
2924 TA06a
SYSTEM
CONTROLLER
150nF
0.1µF
0.1µF
0.1µF
0.1µF
11.8k
52.3k
10k
0.1µF
Q4
Q3
Q2
Q1
45.3k 6.04k
7k
1.36k
7.68k 1.69k
Q1-Q4: IRL3714S
ALL RESISTORS 1%
V
ON
– 4.5V
V
OFF
– 3.9V
V
ON
= 2.79V
V
OFF
= 2.73V
V
ON
= 4.21V
V
OFF
= 3.76V
V
ON
= 3.32V
V
OFF
= 2.80V
49.9k
100k
10k
5V
EARLY
10k
5V
3V
–5V
–
+
2N3906 SOT-23
LT1783
1M
Precision Negative Rail Sequencer
Power-Up Sequence Power-Down Sequence
2V/DIV
5V/DIV
10ms/DIV
2924 TA07b
5V
–5V
3.3V
ON
TMR
DONE
5V/DIV
2V/DIV
2V/DIV
5V/DIV
10ms/DIV
2924 TA07c
5V
–5V
3.3V
ON
TMR
DONE
5V/DIV
2V/DIV