S-8242B Datasheet, PDF (14/30 Pages) Seiko Instruments Inc – BATTERY PROTECTION IC FOR 2-SERIAL-CELL PACK

BATTERY PROTECTION IC FOR 2-SERIAL-CELL PACK
S-8242B Series
„ Timing Chart
1. Overcharge Detection, Overdischarge Detection
Battery
voltage
VCUn
VCLn
VDUn
VDLn
(n= 1, 2)
VDD
DO pin
voltage
VSS
CO pin
voltage
VDD
VSS
VEB_−
VDD
VM pin
voltage
VIOV1
VSS
VCHA
VEB_−
Charger connection
Load connection
Mode ^*1
Overcharge detection
delay time(tCU)
(1)
(2)
Overdischarge detection
delay time (tDL)
(1)
(3)
*1. (1) : Normal mode
(2) : Overcharge mode
(3) : Overdischarge mode
Remark The charger is assumed to charge with a constant current.
Figure 10
Rev.1.4_00
(1)
14
Seiko Instruments Inc.