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