Datasheet

LTC2938/LTC2939
15
293839ff
TYPICAL APPLICATIONS
Quad-Supply Monitor (Mode 14) with Watchdog Disabled
±5V Supply Monitor (Mode 1) with Watchdog Disabled and Unused Inputs Tied High
V
REF
LTC2938
293839 TA02
R1
9.53k
1%
R2
93.1k
1%
1.8V
12V
V
TRIP
= 11.25V
R4
100k
1%
C
RT
47nF
WDO
WDI
RST
V
PG
GND CRT CWT
V3
V4
R3
2.15MΩ
1%
SYSTEM
LOGIC
5V
0.1μF
3.3V
0.1μF
V1
V2
V
REF
LTC2938
293839 TA03
R1
93.1k
1%
R4
121k
1%
R2
9.53k
1%
5V
–5V
V
TRIP
= –4.64V
C
RT
47nF
WDI
WDO
RST
V
PG
GND CRT CWT
V1
V2
V3
V4
R3
464k
1%
SYSTEM
LOGIC
0.1μF