s-8233bcft-tb-g Seiko Instruments Inc., s-8233bcft-tb-g Datasheet - Page 2
s-8233bcft-tb-g
Manufacturer Part Number
s-8233bcft-tb-g
Description
Battery Protection Ic For 3-serial-cell Pack
Manufacturer
Seiko Instruments Inc.
Datasheet
1.S-8233BCFT-TB-G.pdf
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2
BATTERY PROTECTION IC FOR 3-SERIAL-CELL PACK
S-8233B Series
Block Diagram
Remark The delay time for over current detection 2 and 3 is fixed by an internal IC circuit. The delay
CD1
CD2
CD3
VC2
VCC
VC1
VSS
time cannot be changed via an external capacitor.
Battery 1
Over charge
Battery 2
Over charge
Battery 3
Over charge
Reference
voltage 2
Reference
voltage 3
Reference
voltage 1
+
−
+
−
+
−
+
−
+
−
+
−
Battery 2
Over discharge
Battery 1
Over discharge
Battery 3
Over discharge
Seiko Instruments Inc.
Battery 2
Over charge
Battery 3
Over charge
Battery 1
Over charge
Figure 1
Control
Logic
2,3 delay circuit
Over current
Over discharge
detection circuit
Over current1,
Over current
Over charge
delay circuit
delay circuit
delay circuit
detection
Floating
circuit
Rev.4.3
COP
CTL
COVT
CDT
CCT
DOP
VMP
_00
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