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BQ25898D: About VDPM_OS

user777540
Expert 1020 points
Part Number: BQ25898D


hello,

There is a VDPM_OS setting in Table 10. REG01 of the datasheet.
What is the function of VDPM_OS?

best regards

  • 0
    TI__Guru**** 168456 points

    Hi,

    The VINDPM loop has two different operating modes:  relative or absolute.  In relative mode (default), at power up, the IC measures VBUS with the ADC and then sets VINDPM threshold  = VBUSmeasured - VDPM_OS setting.  You can change to absolute (fixed) VINDPM using REG0D.

    Regards,

    Jeff