S-8241ABKMC-GBKT2G Datasheet, PDF (2/39 Pages) Seiko Instruments Inc – BATTERY PROTECTION IC FOR 1-CELL PACK

BATTERY PROTECTION IC FOR 1-CELL PACK
S-8241 Series
„ Block Diagram
Rev.9.1_00
VDD
Delay circuit
Clock generation circuit
DO
Counter circuit
−
+
Overcharge
detection
comparator
Load short-
circuiting
detection circuit
Level conversion circuit
CO
0V battery charging circuit
0V battery charge
R_COL
inhibition circuit
VSS
Overdischarge
detection
comparator
+
−
The overdischarge
hysterisis is released when
a charger is detected.
+
Charger
detection circuit
Overcurrent 1
−
detection comparator
+
Overcurrent 2
−
detection comparator
Remark The diodes in the IC are parasitic diodes.
Figure 1
R_VMD
VM
R_VMS
2
Seiko Instruments Inc.