BATTERY PROTECTION IC FOR 2-SERIAL-CELL PACK
S-8232 Series
Rev.5.4_00
2. Overdischarge Detection
V2 battery
V1 battery
VCU
VCD
VDU
VDD
Battery
voltage
VSS
VCC
DO pin
voltage
VSS
Vcc
CO pin
voltage
Vss
EB−
VCC
VIOV2
VIOV1
VSS
VM pin
voltage
EB−
Charger connection
Load connection
Delay
No Delay
Delay
Mode *1
<1>
<3>
<1>
<3>
<2> & <3>
<3>
*1. <1> Normal mode
<2> Over charge mode
<3> Over discharge mode
<4> Over current mode
Remark The charger is assumed to charge with a constant current.
Figure 6
16
Seiko Instruments Inc.