BQ25792: how to recognize the Vbus_uvloz min drop time.

huaiming tan

Part Number: BQ25792

Tool/software:

Hi Experts:

if the Vbus voltage drop to below Vbus_uvloz (3.2V typically), my question is what the minimum duration time that can be recognized by charger IC for this dropped Vbus voltage, please advise, thanks.

11 months ago

0 Jeff F 11 months ago

TI__Guru**** 166626 points

Hi Huaiming,

Unfortunately, I do not have that information. I have sent an email to our design team asking for the UVLO deglitch time.

Regards,
Jeff

0 Jeff F 11 months ago in reply to Jeff F

TI__Guru**** 166626 points

Huaiming,

My designer says it takes up to 10-30ms for UVLO to be detected. It is not a fixed or tested deglitch.

Regards,
Jeff

0 huaiming tan 11 months ago in reply to Jeff F

Prodigy 60 points

Well noted and thanks Jeff.

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BQ25792: how to recognize the Vbus_uvloz min drop time.