S-8204BAB-TCT1Y Datasheet, PDF (2/36 Pages) Seiko Instruments Inc – BATTERY PROTECTION IC

BATTERY PROTECTION IC FOR 3-SERIES OR 4-SERIES CELL PACK
S-8204B Series
 Block Diagram
Rev.3.9_00
COP
VMP
DOP
VINI
CDT
CCT
Control circuit
R_VMD
R_VMS
Delay circuit
Delay circuit
Delay circuit
+
− _Discharge
overcurrent 1
+
− _Discharge
overcurrent 2
+
− _{Load short circuit}
Delay circuit
Delay circuit
Overcharge
1
−
Over- ⁺
discharge 1₊
−
Overcharge
2
−
Over-
+
discharge 2 ₊
−
Overcharge
3
−
Over-
+
discharge 3 ₊
−
Overcharge
4
−
Over-
+
discharge 4 ₊
−
CIT
SEL
Remark Diodes in the figure are parasitic diodes.
2
Figure 1
CTLC
CTLD
VDD
VC1
VC2
VC3
VC4
VSS