S-8252AAA-M6T1U Datasheet, PDF (18/36 Pages) Seiko Instruments Inc – BATTERY PROTECTION IC

BATTERY PROTECTION IC FOR 2-SERIAL-CELL PACK
S-8252 Series
 Timing Chart
1. Overcharge detection, overdischarge detection
V_CUn
V_CLn (V_CUn − V_HCn)
Battery voltage
V_DUn (V_DLn + V_HDn)
V_DLn
Rev.3.2_00
V_DD
DO pin voltage
V_SS
CO pin voltage
V_DD
V_SS
V_EB−
VM pin voltage
V_DD
V_DIOV
VVV_{SCESIBO−V}
Charger connection
Load connection
Overcharge detection delay time (t_CU)
(1)
(2)
Status^*1
Overdischarge detection delay time (t_DL)
(1)
(3)
(1)
*1. (1): Normal status
(2): Overcharge status
(3): Overdischarge status
Remark The charger is assumed to charge with a constant current.
Figure 11
18