ZHCSDT4D June 2015 – September 2020 BQ29209-Q1
PRODUCTION DATA
请参考 PDF 数据表获取器件具体的封装图。
If enabled, the BQ29209-Q1 performs automatic cell-balance correction where the two cells are automatically corrected for voltage imbalance by loading the cell with the higher voltage with a small balancing current. When the cells are measured to be equal within nominally 0 mV, the load current is removed. It will be re-applied if the imbalance exceeds nominally 30 mV. The cell mismatch correction circuitry is enabled by pulling the CB_EN pin low, and disabled when CB_EN is pulled to greater than 2.2 V, for example, VDD.
If the internal cell balancing current of up to 15 mA is insufficient, the BQ29209-Q1 may be configured via external circuitry to support much higher external cell balancing current.