SLUSAS3C April 2014 – November 2017
The integrated cell balancing FETs included in the bq28z610 device enable the AFE to bypass cell current around a given cell or numerous cells to effectively balance the entire battery stack. External series resistors placed between the cell connections and the VCx input pins set the balancing current magnitude. The cell balancing circuitry can be enabled or disabled via the CELL_BAL_DET[CB2, CB1] control register. Series input resistors between 100 Ω and 1 kΩ are recommended for effective cell balancing.