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BQ29209: using the part as balancing only

Dusan Stan
Prodigy 40 points
Part Number: BQ29209

I'm planning to use the bq2920x to balance a 2 cell battery, I do not care for the protection circuit. Can I leave the RVD, CVD, CCD out and connect the VDD directly to PACK+? Will the balancing functionality be affected? I'm space limited.

  • 0
    TI__Guru* 81034 points

    Hi Dusan,

    From a safety perspective, we cannot recommend removing these components. The removal of CCD will cause the over-voltage detection delay to move toward zero. RVD is needed for battery safety in the case there is a hard short from VDD to VSS internal to the device. It is not a requirement for proper device operation, but the device functionality has not been characterized without these components.

    Best regards,

    Matt