S-8242B Datasheet, PDF (16/30 Pages) Seiko Instruments Inc – BATTERY PROTECTION IC FOR 2-SERIAL-CELL PACK

BATTERY PROTECTION IC FOR 2-SERIAL-CELL PACK
S-8242B Series
3. Charger Detection
Battery
voltage
V_CUn
V_CLn
V_DUn
V_DLn
(n= 1, 2)
V_DD
DO pin
voltage
V_SS
V_DD
CO pin
voltage
V_SS
VM pin
voltage
V_DD
V_SS
V_CHA
Charger connection
Load connection
Overdischarge detection delay time (t_DL)
Mode^*1
(1)
(2)
*1. (1) : Normal mode
(2) : Overdischarge mode
Remark The charger is assumed to charge with a constant current.
Figure 12
Rev.1.4_00
VM pin vodltage < V_CHA
Overdischarge detection (V_DL)
(1)
16
Seiko Instruments Inc.