Datasheet

LTC2911
16
2911f
TYPICAL APPLICATIONS
Triple Supply Monitor and Overtemperature Signal
LTC2911-1
R1
100k
R3
270k
*THERMISTOR MURATA NTC NCP15WM474J03RC TOLERANCE 5%.
NTC RESISTANCE IS 474k AT ROOM, 35.8k AT 85°C
**OPTIONAL BYPASS CAPACITOR FOR SUPPLY TRANSIENT NOISE FILTERING
R2
2.05M
R31*
R4
200k
V
TRIP
= 10.75V
V1
V2
3.3V
5V
12V
3.3V
5V
12V
PFI
RESET
OVERTEMP
RST
PFO
TMR
ADJ
C
TMR
2.2nF
t
RST
= 20ms
TRIP TEMPERATURE = 90°C
RECOVER TEMPERATURE = 89°C
C1**
10nF
0.1µF
2911 TA02
GND
Quad Supply Monitor
LTC2911-2
R3
100k
R1
100k
D1
BAS119
R6
383k
R4
806k
3.3V
2.5V
5V
12V
V
TRIP
= 4.53V
V
TRIP
= 10.5V
R5
1.62M
V1
V2
PFI
RESET
RST
PFO
TMR
ADJ
C
TMR
2.2nF
t
RST
= 20ms
0.1µF
2911 TA03
GND