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Lead-acid battery over-discharge protection - which IC to choose?

Expert 1140 points
Other Parts Discussed in Thread: BQ24450, BQ34Z110

Could you advise me which of the TI's battery management ICs allow to do a simple lead-acid over-discharge circuit (6V, 1.2Ah one). For the charging control I plan to use BQ24450.

  • Our bq34z110 can provide capacity gauging during charge and discharge, but it does not offer FET control. Our other PbA gauges work in a similar manner with regard to FET control.

  • ThomasCosby said:
    Our bq34z110 can provide capacity gauging during charge and discharge, but it does not offer FET control. Our other PbA gauges work in a similar manner with regard to FET control.

    Thanks, in other words there is no IC allowing for easy/unconditional overdischarge control. I might use the bq34z110 to read the remaining capacity from the battery and deactivate some circuits via microcontroller.