BATTERY PROTECTION IC FOR 1-CELL PACK
S-8241 Series
Rev.7.6_00
(5) Abnormal charge current detection
VCU
VCL
Battery
voltage
VDU
VDL
VDD
DO pin
VSS
VDD
CO pin
VSS
VDD
VM pin
VSS
VCHA
Charger connection
Load connection
Abnormal charging current detection delay time
( = Overcharge detection delay time (tCU))
Overdischarge detection delay time (tDL
)
Mode
(1)
(3)
(1)
(2)
(1)
Note: (1) Normal mode, (2) Overcharge mode, (3) Overdischarge mode, (4) Overcurrent mode
The charger is assumed to charge with constant current.
Figure 11
Seiko Instruments Inc.
25