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