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TPS25730: Clear Dead Battery Flag

Hideki Hayashi1
Expert 7870 points
Part Number: TPS25730

Tool/software:

Hi team,

How can customer clear dead-battery flag? There are description on 8.3.2 Power Management, 8.3.6 Default Behavior Configuration (ADCIN1, ADCIN2), 9.3.1.1 VIN_3V3 Input Switch.

Fundamentally, the device needs to be supplied from VIN_3V3? I assume this is sink-only device and it can be used without VIN_3V3 and supplied from VBUS through LDO in all cases. Is that correct?

If there is 3.3V supply into VIN_3V3, is there any merit for the device?

Regards,

Hayashi

  • +1
    TI__Genius 13880 points

    Hi Hayashi,

    1. There is no means to clear the dead battery flag.

    2. The device does NOT need to be supplied through VIN_3V3. In every case where the TPS25730 is connected to a device that can act as a USB-C and/or USB-PD source, the TPS25730 can be powered through an internal LDO powered from VBUS.

    3. Some customers have used this device while supplying VIN_3V3, yes.

    Regards,

    Conner