S-8233C Datasheet, PDF (15/26 Pages) Seiko Instruments Inc – BATTERY PROTECTION IC FOR 3-SERIAL-CELL PACK

Rev.4.0_00
BATTERY PROTECTION IC FOR 3-SERIAL-CELL PACK
S-8233C Series
Operation Timing Charts
1. Over charge detection
VCU
Battery VCD
voltage _VDU
VDD
VCC
CSO
terminal
VSS
VCC
DSO
terminal
VSS
VCC
ISO
terminal
VSS
VCC
DOP
terminal
VSS
V1 battery
V2 battery
V3 battery
COP
terminal
VSS
VMP
terminal
VCHA
VCC
VIOV1
VSS
Charger
connected
Load
connected
Mode^*1
Hi-z
Delay
Hi-z
Hi-z
Hi-z
Delay
Delay
Delay
Delay
&
*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 5
Seiko Instruments Inc.
15