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bq34z100 High Pulse Current

Lois Gray96
Prodigy 175 points
Other Parts Discussed in Thread: BQ34Z100

I am using the bq34z100 for an application which has very occasional, extremely high, but short duration, pulse current loads on top of a more constant current profile.  Would you be able to advise me which bq34z100 gas gauge settings would be most appropriate for an application like this. 

  • 0
    TI__Guru 73830 points

    Lois, 

    We usually recommend setting the Load Select to 0 for pulsed load or transient load applications. Batteries typically absorb short duration pulses and they probably will not have a big affect on the accuracy of the gauging, unless they occur very frequently. 

    Tom

  • 0 in reply to ThomasCosby
    Prodigy 175 points

    Thank you Thomas.  I am also a little concerned as to how the voltage drop during the pulse will affect the gauge, in particular, would any delta V parameters, need to be increased? We are seeing up to 1.5V worst case on a single cell (although the battery is a pack so might not be quite as bad as this).