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BQ34Z110 lead acid gas suage

David Woo
Prodigy 530 points
Other Parts Discussed in Thread: BQ34Z110, BQ34Z100-G1

Our customer wants to develop a lead acid battery gas guage with >50A charge and discharge current. Do we have any good suggestion?

I can see bq34Z110 is NRND. The only product seems to be bq34Z100-G. However, is it suitable for lead acid battery? Also, the charge current is too low. How to support the large charge current?

  • 0
    TI__Guru 73830 points
    David,
    The bq34z100-G1 will be the best gauge that we have to offer to support PbA cells. It can support up to 32A charge and discharge current and 29Ah capacity. you will need to use current scaling to support 50A and I have an application report on the bq34z100-G1 website to help with scaling.

    Tom