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BQ25713: pre-charge current setting

Toshiro Imi
Expert 7170 points
Part Number: BQ25713

Could you help us if bq25713 can set 64mA pre-charge current by ChargeCurrent() register.

in the datasheet page-10, IPRECHRG_REG_ACC specification, 384mA, 256mA, 192mA, 128mA specification are specified. we would like to know if 64mA setting is available.

If it is available, could you also let us know the accuracy.

best regards,

  • 0
    TI__Mastermind 25800 points

    Hey Toshiro-san,

    The customer can set 64mA. This is the LSB of the ChargeCurrent register. 

    Unfortunately, the accuracy of 64mA has not been characterized and we cannot provide data for that current level. We can potentially estimate the accuracy to give a typical tolerance of 64mA charging, but it may not be representative of true performance. If we extrapolate data from the other current levels, it may be reasonable to estimate an accuracy of about +/-35%. 

    However, also keep in mind that this estimate would be based on a 10mOhm RSR resistance. If 20mOhm is used, the low current accuracy will improve.

    Regards,

    Joel H

  • 0 in reply to Joel Hernandez II
    TI__Expert 7170 points

    Thank you very much. This resolved our issue.

    best regards,