Is BQ78412 suitable for 6 series 12V Pb-acid cell?

Kevin Wen

Other Parts Discussed in Thread: BQ78412, BQ34Z100-G1, BQ34Z100

Hi team,

would you suggest if BQ78412 is suitable for 6 series 12V Pb-acid cell application? customer need to monitor the battery voltage, current, temperature and the run time to empty.

If yes, would you please suggest how to connect BQ78412 with the 6 cells? and where to place the 1m ohm/2W resistor?

If not, would you please suggest if we have better solution?

thanks.

Kevin

over 10 years ago

0 Doug Williams4811 over 10 years ago

TI__Expert 6470 points

Hi Kevin,

Sorry, we do not recommend the use of bq78412. The new bq34z100-G1 is a much better solution for your lead acid application.

Regards,

Doug

0 Kevin Wen over 10 years ago in reply to Doug Williams4811

TI__Intellectual 2235 points

Hi Doug,

From BQ34Z100 datasheet, it is suitable for cell packs 2.7V to 60V, as customer is using 12 lead acid cell, 6 cells in series, is this means we need to use 2 pcs BQ32Z100? Would you please give us a typical application circuit?

Thanks,

Kevin

Power management

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Is BQ78412 suitable for 6 series 12V Pb-acid cell?