BQ76972: Is there a way to check that the balance and peripheral circuits are working well during production?

Part Number: BQ76972

Tool/software:

Hi

We need to test whether the balancing function of the chip is good in the production process. After the current balancing is opened, the voltage value collected has little change, and it is impossible to judge whether the balancing function of the chip and the peripheral balancing circuit are normal through the voltage change.

Is there a way to check that the balance and peripheral circuits are working well during production?

  • Hello User,

    Unfortunately, I don't think there is really an easy method for what you’re asking for. We don't have any recommendations ourselves to my knowledge. 

    0x0083 CB_ACTIVE_CELLS() could tell you at least which cells are actively balanced when read if that is something you’re interested in. Section 10.1 Cell Balancing Operation in the BQ76972 Technical Reference Manual gives more information regarding it.

    Best Regards,
    Alexis