LTC2901 Linear Technology, LTC2901 Datasheet - Page 14

• Manufacturer Part Number: LTC2901
• Description: Programmable Quad Supply Monitor with Adjustable Reset and Watchdog Timers
• Manufacturer: Linear Technology

LTC2901
14
TYPICAL APPLICATIO S
5V
5V, –5V Monitor with Watchdog Timer Disabled and Unused
WATCHDOG STATUS
U
C
Quad Supply Monitor with LED Undervoltage Indicators
RT
SYSTEM RESET
V2, V3 Inputs Pulled Above Trip Thresholds
SYSTEM
RESET
C
5V
RT
2.5V
R
1k
WDI
LED
L1
5V, 3.3V, 2.5V, 1.5V
1
2
3
4
5
6
7
8
R
1k
1
2
3
4
5
6
7
8
LED
L3
COMP3
COMP1
V3
V1
CRT
RST
WDO
WDI
COMP3
COMP1
V3
V1
CRT
RST
WDO
WDI
LTC2901
LTC2901
COMP2
COMP4
COMP2
COMP4
V
GND
CWT
V
CWT
V
GND
REF
V
V2
V4
REF
PG
V2
V4
PG
C
WT
16
15
14
13
12
11
10
9
16
15
14
13
12
11
10
9
2901 TA03
R
1k
LED
L2
2901 TA04
R1
16.2k
1%
R2
86.6k
1%
3.3V
1.5V
121k
R
1k
R1
53.6k
1%
R2
47.5k
1%
1%
R4
LED
L4
464k
1%
R3
–5V
V
TRIP
= –4.64V
2901is sn2901