S-8250AAB-I6T1U Datasheet, PDF (2/36 Pages) Seiko Instruments Inc – BATTERY PROTECTION IC

BATTERY PROTECTION IC WITH DISCHARGE CONTROL FUNCTION FOR 1-CELL PACK
S-8250A Series
 Block Diagram
Rev.1.3_02
VDD
VSS
VM
Overdischarge
detection comparator
DO
Overcharge
detection comparator
Discharge overcurrent
detection comparator
Load short-circuiting
detection comparator
Control logic
Delay circuit
Oscillator
Charge overcurrent
detection comparator
CO
Pull-up / pull-down
CTL
selection circuit
Remark All the diodes shown in the figure are parasitic diodes.
Figure 1
2