Datasheet

LTC2995
18
2995f
TYPICAL APPLICATIONS
Celsius Thermometer and ±10% Voltage Monitor (1.8V and 2.5V)
±10% Voltage Monitor (12V and 5V) and –20°C to 70°C Internal UT/OT Monitor with
Manual Undervoltage Reset Button
POWER
SUPPLIES
VH1
VL1
VH2
VL2
D
+
D
–
LTC2995
44.2k
115k
12V
5V
4.53k
VT1VT2
43k 36k 102k
OT T > 70°C
UT T < –20°C
+10%
–10%
GND TMRV
REF
4.53k
1k
MANUAL
RESET BUTTON
(NORMALLY OPEN)
1k
V
PTAT
TO2
TO1
OV
UV
V
CC
PS
DS
0.1µF
SYSTEM
RESET
2995 TA05
POWER
SUPPLIES
VH1
VL1
VH2
VL2
D
+
D
–
LTC2995
194k
124k
2.5V
1.8V
45.3k
2995 TA04
VT1VT2
+10%
–10%
1.8V
100k
1k
4mV/K
GND TMR TO2 TO1
45.3k
10.2k
10.2k
V
PTAT
OV
UV
V
CC
PS
DS
0.1µF
5nF
470pF MMBT3904
V
REF
–
+
62k
143k 1µF
0.1µF
LTC1150
5V
–5V
10mV/°C
0V AT 0°C
150k 1.8k