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BQ40Z50-R1: How to calibrate

user5377993
Prodigy 40 points
Part Number: BQ40Z50-R1

Hello,

may I ask that the voltage and current of BQ40Z50R1 were not output during the calibration, and the MOS tube was not opened, are there any registers that need to be set

  • 0
    TI__Genius 12215 points

    Hi

        Please make sure you have applied the charging voltage to the pack in the first place.

        Please first check the NR bit in the DA Configuration Register, if it is not set, please make sure the PRES pin of the IC is pulled low, otherwise, please also check if the FET_EN in manufacturer status register is set, if not, please sent FET Enable command to get this bit set

  • 0 in reply to Steven Yao
    Prodigy 40 points

    Hello

    may I ask that the percentage of electricity display is not consistent with the actual voltage，Where is it modified?

  • 0 in reply to user5377993
    TI__Genius 12215 points

    Is SOC what you mean for electricity display?

    SOC is calculated by gas gauge according to a lot of variables like voltage, current, temperature and battery chemistry models, it is expected to vary even the voltages are same.