APPLICATIONS INFORMATION
TK65010
Li-ion
CELL
R1
715 K
R2
215 K
VIN
GND
VMON
LBO
LOW BATTERY
DBO
DEAD BATTERY
Low Battery Threshold = 3.5 V
Dead Battery Threshold = 3.0 V
FIGURE 6: BASIC BATTERY MONITOR
BATTERY
VOLTAGE
R1
1.23 M
+5 V
VIN
GND
VMON
R2
90.9 K
LBO
LOW BATTERY
DBO
DEAD BATTERY
Low Battery Threshold = 11.0 V
Dead Battery Threshold = 10.0 V
FIGURE 7: HIGH VOLTAGE MONITOR
BATTERY
VOLTAGE
R1
1M
+5 V
VIN
GND
VMON
R2
73.2 K
13 K
LBO
LOW BATTERY
DBO
DEAD BATTERY
Low Battery Threshold = 11.1 V
Dead Battery Threshold = 10.1 V
FIGURE 8: HIGH VOLTAGE MONITOR WITH 3-RESISTOR ATTENUATOR
January 1999 TOKO, Inc.
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