S-8250BAB-I6T1U Datasheet, PDF (17/32 Pages) Seiko Instruments Inc – BATTERY PROTECTION IC FOR 1-CELL PACK

Rev.1.1_02
BATTERY PROTECTION IC FOR 1-CELL PACK
S-8250B Series
 Timing Chart
1. Overcharge detection, overdischarge 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
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 10
17