S-8209A Datasheet, PDF (14/26 Pages) Seiko Instruments Inc – BATTERY PROTECTION IC WITH CELL-BALANCE FUNCTION

BATTERY PROTECTION IC WITH CELL-BALANCE FUNCTION
S-8209A Series
Rev.3.4_00
 Example of Protection Circuit with the S-8209A Series (Without Discharge Cell-balance Function)
for Series Multi-Cells
Figure 16 shows the example of protection circuit with the S-8209A Series (without discharge cell-balance function) for
series multi-cells.
Regarding the operation of protection circuit with the S-8209A series for series-connected batteries and the example of
protection circuit with the S-8209A Series (with discharge cell-balance function) for series multi-cells, refer to the
application note "S-8209A Series Usage Guidelines".
EB+
1 MΩ
1 MΩ
510 kΩ
510 kΩ
CO1
VDD1
DO1
CDT1
S-8209A
(1) CB1
CTLC1
CTLD1
VSS1
0.01 μF
470 Ω
0.1 μF
BAT1
1 kΩ
1 kΩ
CO2
DO2
VDD2
CDT2
S-8209A
(2) CB2
CTLC2
CTLD2
VSS2
0.1 μF
470 Ω
BAT2
1 kΩ
1 kΩ
CO3
VDD3
470 Ω
DO3
CDT3
0.1 μF
S-8209A
(3) CB3
BAT3
1 MΩ
1 MΩ
CFET DFET
CTLC3
CTLD3
VSS3
EB−
1 kΩ
1 kΩ
Figure 16
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.
14
Seiko Instruments Inc.