S-8233A Datasheet, PDF (18/30 Pages) Seiko Instruments Inc – BATTERY PROTECTION IC FOR 3-SERIAL-CELL PACK

BATTERY PROTECTION IC FOR 3-SERIAL-CELL PACK
S-8233A Series
Rev.3.2_10
3. Over current detection
VCU
Battery ^VCD
voltage ^VDU
VDD
V1, V2, and V3 batteries
VCC
DOP
terminal
VSS
COP
terminal
Hi-z
Hi-z
VSS
VCC
VMP
terminal
VIOV1
VIOV2
VIOV3
Charger
connected
Load
connected
Mode^*1
Delay tIOV1
Delay tIOV2
Hi-z
Hi-z
Delay _tIOV3
Inhibit charging and
discharging
CTL terminal
VSS VCC
CTL terminal
VCC VSS
*1. Normal mode, Over charge mode, Over discharge mode, Over current mode
Remark The charger is assumed to charge with a constant current. VCHA indicates the open voltage of the charger.
Figure 8
18
Seiko Instruments Inc.