S-8211DAD-M5T1X Datasheet, PDF (23/38 Pages) Seiko Instruments Inc – BATTERY PROTECTION IC

Rev.6.5_02
BATTERY PROTECTION IC FOR 1-CELL PACK
S-8211D Series
4. Abnormal charge current detection
V_CU
V_CL (V_CU − V_HC)
Battery voltage
V_DU (V_DL + V_HD)
V_DL
V_DD
DO pin voltage
V_SS
V_DD
CO pin voltage
V_SS
V_DD
VM pin voltage
V_SS
V_CHA
Charger connection
Load connection
Status^*1
Overdischarge detection Abnormal charge current detection delay time
delay time (t_DL)
( = overcharge detection delay time (t_CU))
(1)
(2)
(1)
(3)
(1)
*1. (1): Normal status
(2): Overdischarge status
(3): Overcharge status
Remark The charger is assumed to charge with a constant current.
Figure 14
23