S-8261 Seiko Instruments, S-8261 Datasheet - Page 22

• Manufacturer Part Number: S-8261
• Description: Battery Protection IC for Single-Cell Pack
• Manufacturer: Seiko Instruments

22
BATTERY PROTECTION IC FOR SINGLE-CELL PACK
S-8261 Series
Operation Timing Chart
1. Overcharge and Overdischarge Detection
2. Overcurrent Detection
Battery
voltage
DO pin
CO pin
VM pin
Remark (1) Normal condition, (2) Overcharge condition, (3) Overdischarge condition, (4) Overcurrent condition
Charger connection
Load connection
Battery
voltage
DO pin
CO pin
VM pin
Remark (1) Normal condition, (2) Overcharge condition, (3) Overdischarge condition, (4) Overcurrent condition
Overcurrent 1 detection delay time (t
The charger is supposed to charge with constant current.
V
V
V
V
V
V
V
V
V
V
V
V
V
Mode
DD
SHORT
IOV2
IOV1
SS
Charger connection
Load connection
CU
CU
DL
DL
DD
SS
DD
SS
+V
−V
The charger is supposed to charge with constant current.
HD
HC
V
V
V
V
V
V
V
V
V
V
V
V
CU
CU
DL
DL
DD
SS
DD
SS
DD
IOV1
SS
CHA
Mode
+V
–V
(1)
HD
HC
(4)
Overcharge detection delay time (t
(1)
IOV1
)
(1)
Seiko Instruments Inc.
Overcurrent 2 detection delay time (t
(2)
Figure 8
(4)
Figure 7
CU
)
(1)
Overdischarge detection delay time (t
IOV2
(1)
)
Load short-circuiting detection delay time (t
(3)
(4)
DL
)
(1)
(1)
Rev.1.9
SHORT
)
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