BATTERY PROTECTION IC FOR 1-CELL PACK
S-8211C Series
Rev.5.0_00
Block Diagram
Output control circuit
0 V battery charge circuit
Oscillator control
circuit
Divider control
or 0 V battery charge
DO
circuit
inhibition circuit
VDD
+
−
Charger detection circuit
CO
+
−
Overcharge
detection
comparator
Discharge overcurrent detection
comparator
RVMD
+
−
VM
+
−
Charge overcurrent detection
comparator
RVMS
Overdischarge
detection
+
−
comparator
Load short-circuiting detection
comparator
VSS
Remark All diodes shown in figure are parasitic diodes.
Figure 1
2
Seiko Instruments Inc.