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S8209B Datasheet(PDF) 3 Page - Seiko Instruments Inc |
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S8209B Datasheet(HTML) 3 Page - Seiko Instruments Inc |
3 / 19 page CMOS IC Application Note Rev.1.5_00 S-8209B Series Usage Guidelines Seiko Instruments Inc. 3 1. Protection circuit with S-8209B Series (without discharge cell-balance function) for series multi-cells In the connection of the S-8209B Series, connecting the CTLC, CTLD pins to the CO, DO pins allows to configure a protection circuit for series-connected batteries. 1. 1 Connection example of battery protection IC Figure 1 shows the example of protection circuit with S-8209B for series multi-cells. P + P − QCO CFET RCO4 RCTLC0 RVSS CCDT CVSS BAT1 BAT2 BAT3 DFET RDO4 RCO3 RDO3 RDO2 RCTLD0 RCTLD RCTLC CVSS CBFET3 CBFET2 CBFET1 QDO RCO2 RCTLC RCTLD RPASS CVSS RPASS RCB RVSS RCB RVSS RCB RPASS VSS2 VDD CB2 DO2 CO2 CTLD2 CTLC2 S-8209B(2) CDT VSS1 VDD CB1 DO1 CO1 CTLD1 CTLC1 S-8209B(1) CDT VSS3 VDD CB3 DO3 CO3 CTLD3 CTLC3 S-8209B(3) CDT RDO1 RDO5 RDO7 RDO8 P2 P1 RDO6 Remark Refer to “4. External components list” for constants of external components. Figure 1 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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