S-8233A Seiko Instruments, S-8233A Datasheet - Page 18

• Manufacturer Part Number: S-8233A
• Description: Battery Protection IC for 3-Serial Cell Pack
• Manufacturer: Seiko Instruments

3. Over current detection
18
BATTERY PROTECTION IC FOR 3-SERIAL-CELL PACK
S-8233A Series
VMP
terminal
Battery
voltage
DOP
terminal
COP
terminal
*1.
Remark The charger is assumed to charge with a constant current. V
Charger
connected
Load
connected
Mode
V
V
V
V
V
V
V
V
V
V
V
IOV2
IOV3
CC
IOV1
CU
CD
DU
DD
CC
SS
SS
Normal mode,
*1
Delay t
Over charge mode,
IOV1
V1, V2, and V3 batteries
Hi-z
Over discharge mode,
Seiko Instruments Inc.
Delay t
IOV2
Figure 8
Over current mode
CHA
Hi-z
indicates the open voltage of the charger.
Delay
CTL terminal
V
Hi-z
SS
t
IOV3
V
CC
discharging
Inhibit charging and
CTL terminal
V
CC
Hi-z
V
SS
Rev.3.2
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