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BQ76940: BQ76940 GUI balance Cell

Part Number: BQ76940

I found that the voltage of Cell 5 will rise when the software GUI is used to balance Cell 6 and the voltage is reduced! Is there any need for them to look at which part of the code?

  • Hi Kevin,

    Can you capture what you are seeing on an oscilloscope? The voltage of the adjacent cell should be affected during balancing. You can see some example waveforms in this document: 

    Or are you seeing wrong voltages reported by the BQ76940 voltage ADC readings? This could be due to settling time if you have very large input resistors and capacitors resulting in a large RC time constant.

    Best regards,