Datasheet
LTC2935
9
2935fa
TYPICAL APPLICATIONS
Battery Monitor with Interface to Low Voltage Logic
Alkaline Cell Stack Voltage Monitor
Coin Cell Voltage Monitor
1.18M
1μF
590k
100k 100k
V
CC
V
DD
μP
POWER FAIL FALLING THRESHOLD = 3.15V
RESET FALLING THRESHOLD = 3.00V
MANUAL
RESET
PUSHBUTTON
*OPTIONAL RESISTOR FOR ADDED ESD PROTECTION
2935 TA02
NMI
RST
S0
S1
Li-Ion
0.1μF
SHDN
IN OUT
3μA LDO
1.8V
ADJ
PFO
PB1
RST
S2
MR
LTC2935-1
LT3009
R
ESD
*
10k
GND
GND
+
V
CC
2935 TA03
S0
S2
1.5V
0.1μF
LOW BATTERY
S1
LTC2935-2
GND
+
1.5V
+
1.5V
+
RST
PFO
MR
POWER FAIL FAIL THRESHOLD = 2.55V
RESET THRESHOLD = 2.40V
SYSTEM RESET
V
CC
2935 TA04
S2
S1
CR2032
0.1μF
PFO
RST
S0
MR
LTC2935-2
GND
+
POWER FAIL FAIL THRESHOLD = 2.70V
RESET THRESHOLD = 2.55V
LOW BATTERY
SYSTEM RESET