S-8204BAB-TCT1Y Datasheet, PDF (25/36 Pages) Seiko Instruments Inc – BATTERY PROTECTION IC

Rev.3.9_00
BATTERY PROTECTION IC FOR 3-SERIES OR 4-SERIES CELL PACK
S-8204B Series
2. 7-series cell (cascade connection without overcurrent protection function)
EB+
RVMP1
RIFC
RVINI1
RIFD
CCDT1
C_CCT1
RCIT1
1 COP
CTLC 16
2 VMP
CTLD 15
3 DOP
VDD 14
4 VINI
VC1 13
S-8204B
5 CDT (1) VC2 12
6 CCT
VC3 11
7 CIT
VC4 10
8 SEL
VSS 9
RCTLC
RCTLD
CVC1
CVC2
CVC3
RSEL1
RVDD1
RVC1
R_VC2
RVC3
RVC4
CVDD1
R_VMP2
DCOP
RCOP
RVINI2
CCDT2
C_CCT2
RDOP
RCIT2
1 COP
CTLC 16
2 VMP
CTLD 15
3 DOP
VDD 14
4 VINI
VC1 13
S-8204B
5 CDT (2) VC2 12
6 CCT
VC3 11
7 CIT
VC4 10
8 SEL
VSS 9
CVC5
CVC6
CVC7
C_VC8
RSEL2
RVDD2
R_VC5
RVC6
RVC7
RVC8
CVDD2
EB− _{Charge FET Discharge FET}
Figure 12
Caution 1. It is recommended that filter constants between the VDD pin and the VSS pin should be set to
approximately 47 μF • Ω.
e.g., C_VDD × R_VDD = 1.0 μF × 47 Ω = 47 μF • Ω
Sufficient evaluation of transient power supply fluctuation and overcurrent protection function with
the actual application is needed to determine the proper constants. Contact our sales office in case
the constants should be set to other than 47 μF • Ω.
2. It has not been confirmed whether the operation is normal in circuits other than the above example
of connection. In addition, the example of connection shown above and the constants do not
guarantee proper operation. Perform thorough evaluation using an actual application to set the
constant.
Remark Refer to the application note for constants of each external component.
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