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BQ40Z05 CUV保护

Other Parts Discussed in Thread: BQ40Z50-R1

电池获得chem id时,放电的终止电压是否以触及CUV 阀值为准?触及阀值后MOS会出现打嗝状态,这种打嗝会导致部分电芯出现过放,一般有什么特别建议?

  • 确认您的放电截止设置Pack Based and Cell Based Termination
    The bq40z50-R1 forces RemainingCapacity() to 0 mAh
    when the battery stack voltage reaches the Term Voltage for a period of Term V Hold Time. If IT
    Gauging Configuration[CELL_TERM] = 1, the battery can terminate based on cell voltage or pack
    voltage. When the cell based termination is used, the Term Min Cell V threshold is checked for the
    termination condition. The cell based termination can provide an option to enable the gauge to
    reach 0% before the device triggers CUV for a pack imbalance.