S-8241 Seiko Instruments, S-8241 Datasheet - Page 19

• Manufacturer Part Number: S-8241
• Description: Battery Protection IC for 1-Cell Pack
• Manufacturer: Seiko Instruments

2. Overcurrent detection
Rev.4.1
3. Charger detection
Battery
voltage
_01
DO pin
CO pin
VM pin
Battery
voltage
Load connection
DO pin
Note: (1) Normal mode, (2) Overcharge mode, (3) Overdischarge mode, (4) Overcurrent mode
Charger connection
CO pin
VM pin
Load connection
Charger connection
Overcurrent 1 detection delay time (t
Note: (1) Normal mode, (2) Overcharge mode, (3) Overdischarge mode, (4) Overcurrent mode
The charger is assumed to charge with constant current.
Mode
V
V
V
V
V
V
V
V
V
V
V
V
V
Mode
The charger is assumed to charge with constant current.
CU
CL
DU
DL
DD
IOV2
IOV1
SS
SHORT
DD
SS
DD
SS
V
V
V
V
V
V
V
V
V
V
V
CU
CL
DU
DL
DD
SS
DD
SS
DD
SS
CHA
(1)
(4)
Overdischarge detection delay time (t
(1)
IOV1
)
(1)
Overcurrent 2 detection delay time (t
Seiko Instruments Inc.
BATTERY PROTECTION IC FOR 1-CELL PACK
Figure 8
Figure 9
(4)
(3)
DL
)
If VM pin voltage < V
Overdischarge is released at
overdischarge detection voltage (V
(1)
IOV2
) Load short-circuiting detection delay time (t
(4)
CHA
(1)
DL
)
S-8241 Series
(1)
SHORT
)
19