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BQ76PL455A-Q1: [SLUSC51C] 7.6.3.14 CBENBL 0x14–15 (20–21) Balancing Enable

wawafish Yu
Prodigy 130 points
Part Number: BQ76PL455A-Q1

Dear Sir,

7.6.3.14 CBENBL 0x14–15 (20–21) Balancing Enable   >>>>>       BALANCE_EN[0~15]

If we enable BALANCE_EN[9], then Cell_Voltage_Value[9] which we read will drop 30mv,

If we enable BALANCE_EN[12], then Cell_Voltage_Value[12] which we read will drop 30mv,

Could you please give us the suggestion about "how to read the correct Cell_Voltage_Value"  "when we enable  BALANCE_EN"?

Thanks!!

Wawafish

  • +1
    TI__Expert 8705 points

    Wawafish,

    When balancing is enabled, there is a big current flows from battery to Vcell, so there is voltage drop on the resistor on the sense line. If you provide the schematic, I can provide the detailed analysis for you if you like.