LTC2903 LINER [Linear Technology], LTC2903 Datasheet - Page 13

• Manufacturer Part Number: LTC2903
• Description: Low Voltage Supervisorwith 27 Selectable Thresholds and Watchdog Timer
• Manufacturer: LINER [Linear Technology]

TYPICAL APPLICATIONS
3.3V
1V Supply Monitor with Windowed Watchdog Timeout
1V
C
0.1μF
BYPASS
VM
SEL1
SEL2
TOL
GND
and Internal Timers Selected
LTC2917-B
V
WT
CC
RST
WDI
RT
3.3V
1.8V
R
10k
PU
t
t
t
WDU
WDL
RST
9V
= 200ms
= 50ms
= 1.6s
R2
866k
R1
51.1k
RST
I/O
9V, –15% Tolerance Supply Monitor
GND
V
μP
CC
VM
SEL1
SEL2
TOL
GND
C
0.1μF
29178 TA02
BYPASS
with 1.8V Logic Out
LTC2917-A
WT
V
CC
C
WT
WDI
RST
RT
3.3V
12V
C
RT
12V Supply Monitor with 20ms Reset Timeout and 3.4s
R
10k
PU
Watchdog Timeout, with 3.3V Logic Out
RST
I/O
VM
SEL1
SEL2
TOL
C
0.1μF
GND
BYPASS
GND
V
μP
CC
LTC2917-A
WT
29178 TA04
V
LTC2917/LTC2918
CC
C
0.047μF
WT
WDI
RST
RT
C
0.0022μF
RT
R
10k
PU
RST
I/O
GND
V
μP
CC
13
29178 TA03
29178f