S-8233B_1 Datasheet, PDF (17/26 Pages) Seiko Instruments Inc – BATTERY PROTECTION IC FOR 3-SERIAL-CELL PACK

Rev.4.2_00
BATTERY PROTECTION IC FOR 3-SERIAl-CELL PACK
S-8233B Series
3. Over current detection
VCU
Battery ^VCD
voltage ^VDU
VDD
V1, V2, and V3 batteries
VCC
DOP
terminal
VSS
COP
terminal
Hi-z
Hi-z
VSS
VMP
VCC
VIOV1
terminal
VIOV2
VIOV3
Charger
connected
Load
connected _{Delay tIOV1}
Delay tIOV2
Mode^*1
c
f
c
f
Hi-z
Hi-z
Delay
tIOV3
c
f
c
CTL terminal
VSSÆVCC
Inhibit charging
disc hargi ng
and_c
CTL terminal
VCCÆVSS
If the CTL logic is “reverse” ,it will be exchanged VCC for VSS.
*1. cNormal mode, dOver charge mode,eOver discharge mode, fOver current mode
Figure 8
Seiko Instruments Inc.
17