s-8209a Seiko Instruments Inc., s-8209a Datasheet - Page 11

• Manufacturer Part Number: s-8209a
• Description: Battery Protection Ic With Cell-balance Function
• Manufacturer: Seiko Instruments Inc.

Rev.1.0
EB+
EB−
Caution 1. The above constants may be changed without notice.
Figure 13 shows the example of protection circuit with the S-8209A for series multi-cells.
Regarding the operation of protection circuit with the S-8209A for series-connected batteries, refer to the application note
“S-8209A Series Usage Guidelines”.
Example of Protection Circuit with S-8209A for Series Multi-Cells
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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.
1 MΩ
CFET
BATTERY PROTECTION IC WITH CELL-BALANCE FUNCTION
1 MΩ
510 kΩ
DFET
1 MΩ
Seiko Instruments Inc.
1 MΩ
510 kΩ
Figure 13
1 kΩ
1 kΩ
1 kΩ
1 kΩ
1 kΩ
1 kΩ
CO1
DO1
CO2
DO2
CO3
DO3
CTLC1
CTLD1
CTLC2
CTLD2
CTLC3
CTLD3
S-8209A
S-8209A
S-8209A
(1)
(2)
(3)
VDD1
CDT1
VDD2
CDT2
VDD3
CDT3
VSS1
VSS2
VSS3
CB1
CB2
CB3
0.01 µF
0.1 µF
0.1 µF
S-8209A Series
0.1 µF
BAT1
BAT2
BAT3
470 Ω
470 Ω
470 Ω
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