S-8209BAA-T8T1Y Datasheet, PDF (14/26 Pages) Seiko Instruments Inc – BATTERY PROTECTION IC

BATTERY PROTECTION IC WITH CELL-BALANCE FUNCTION
S-8209B Series
Rev.3.6_00
2. Example of Protection Circuit with the S-8209B Series (With Discharge Cell-balance Function) for
Series Multi-Cells
Figure 17 shows the example of protection circuit with the S-8209B Series (with discharge cell-balance function) for
series multi-cells.
P+
1 MΩ
1 MΩ ^{CFET DFET}
1 MΩ
4.7 MΩ
1 kΩ
4.7 MΩ
1 MΩ
1 kΩ
1 kΩ
1 kΩ
CO1
VDD1
DO1
CDT1
S-8209B
(1) CB1
CTLC1
CTLD1
VSS1
0.1 μF
BAT1
470 Ω
1 kΩ
1 kΩ
CO2
VDD2
DO2
CDT2
S-8209B
(2) CB2
CTLC2
CTLD2
VSS2
0.1 μF
BAT2
470 Ω
CO3
DO3
VDD3
CDT3
0.01 μF
0.1 μF
510 kΩ
510 kΩ
S-8209B
(3) CB3
CTLC3
CTLD3
VSS3
BAT3
470 Ω
P−
1 MΩ
1 MΩ
Figure 17
Caution 1. The above constants may be changed without notice.
2. The example of connection shown above and the constant do not guarantee proper operation.
Perform thorough evaluation using the actual application to set the constant.
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