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

Rev.4.0_00
BATTERY PROTECTION IC FOR 3-SERIAL-CELL PACK
S-8233C Series
3. Over current detection
VCU
Battery ^VCD
voltage ^VDU
VDD
VCC
CSO
terminal
VSS
VCC
DSO
terminal
VSS
VCC
ISO
terminal
VSS
VCC
DOP
terminal
VSS
COP
terminal
VSS
VCC
VMP
VIOV1
terminal _{V IOV2}
VIOV3
Charger
connected
Load
connected
Mode^*1
Delay tIOV1
V1, V2, and V3 batteries
Hi-z
Hi-z
Delay tIOV2
Hi-z
Delay tIOV2
Delay tIOV3
*1. Normal mode, Over charge mode, Over discharge mode, Over current mode CTL terminal
VSS→VCC
Figure 7
Hi-z
Charge/discharge
inhibit
CTL terminal
VCC→VSS
When the S-8233C series detects over current 1 or over current 2, ISO terminal goes ‘High’.
Delay time from load shorted to ISO terminal goes ‘High’ is Tiov2( at that case delay time isn’t Tiov3).
Seiko Instruments Inc.
17