s-8204a Seiko Instruments Inc., s-8204a Datasheet - Page 2

• Manufacturer Part Number: s-8204a
• Description: Battery Protection Ic For 3-series Or 4-series Cell Pack
• Manufacturer: Seiko Instruments Inc.

2
BATTERY PROTECTION IC FOR 3-SERIES OR 4-SERIES CELL PACK
S-8204A Series
Block Diagram
COP
VMP
DOP
CDT
CCT
VINI
SEL
CIT
Remark Diodes in the figure are parasitic diodes.
R
R
VMD
VMS
+
−
+
−
+
−
+
−
Discharge
overcurrent 1
Charge
overcurrent
Discharge
overcurrent 2
Short circuit
Delay circuit
Delay circuit
Seiko Instruments Inc.
Delay circuit
Delay circuit
Control circuit
Figure 1
Delay circuit
Delay circuit
Over-
discharge 4
Over-
discharge 3
Over-
charge 4
Over-
charge 3
Over-
discharge
2
Over-
discharge
1
Over-
charge 2
Over-
charge 1
−
+
+
−
−
+
+
−
−
+
+
−
−
+
+
−
Rev.1.3
CTLC
CTLD
VDD
VC1
VC2
VC3
VC4
VSS
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