S-82B1AAA-I6T1U Datasheet, PDF (21/35 Pages) Seiko Instruments Inc – High-accuracy voltage detection circuit

BATTERY PROTECTION IC WITH CHARGE-DISCHARGE CONTROL FUNCTION FOR 1-CELL PACK
Rev.1.1_00
S-82B1A Series
3. Charge overcurrent 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_EB−
VM pin voltage ^VDD
0.35 V typ.
VV_DCVIOIOSVSV1
V_EB−
Charger connection
Load connection
Status^*1
Charge overcurrent
detection delay time (t_CIOV)
(1)
(2)
Overdischarge
detection delay time (t_DL) ^{Charge overcurrent}
detection delay time (t_CIOV)
(1)
(3)
(1)
(2)
*1. (1): Normal status
(2): Charge overcurrent status
(3): Overdischarge status
Remark The charger is assumed to charge with a constant current.
Figure 13
21