S-82B1AAA-I6T1U Datasheet, PDF (18/35 Pages) Seiko Instruments Inc – High-accuracy voltage detection circuit

BATTERY PROTECTION IC WITH CHARGE-DISCHARGE CONTROL FUNCTION FOR 1-CELL PACK
S-82B1A Series
Rev.1.1_00
 Timing Charts
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−
V_DD
VM pin voltage
0.35 V typ.
VV_C^V_{EIOSBSV−}
Charger connection
Load connection
Overcharge detection delay time (t_CU) Overdischarge detection delay time (t_DL)
(1)
(2)
Status^*1
(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
18