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TPS25750: Leakage current when powering from VIN3V3 or VBUS

Takahiro Saito
Expert 5585 points

Part Number: TPS25750

Hi team,

The TPS25750 can be powered from either VIN_3V3 or VBUS.
Could you tell how much leakage current is consumed in each conditions?

Regards,

Saito

  • 0
    TI__Mastermind 30000 points

    Hello,

    The power consumption of the TPS25750 is outlined in the following section of the datasheet. Let me know if you have any questions about any of these specific measurements

  • 0 in reply to Adam Mc Gaffin
    TI__Expert 5585 points

    Hi Adam-san,

    TPS25750 can work only VBUS supply without VIN_3V3.

    Do you have any current consumption data when VBUS is ON and VIN_3V3 is OFF?

    Regards,

    Saito

  • 0 in reply to Takahiro Saito
    TI__Mastermind 30000 points

    Hello, 

    No we do not have this measurement, but would you be able to elaborate on why you or your customer needs this specific measurement? 

    When there is no power on VIN_3V3 and the TPS25750 is powered from VBUS, the current is being supplied by the charger at the other end of the Type-C cable which by the Type-C spec must be able to provide a minimum of 900mA. 

    Also, this state should only be temporary. The device is only powered by VBUS when VIN_3V3 is not available which is typically only in a dead battery condition. In such a condition, the TPS25750 is powered by VBUS, passes the voltage on VBUS to the rest of the system, which should then power up the system and supply the 3.3V to VIN_3V3

  • 0 in reply to Adam Mc Gaffin
    TI__Expert 5585 points

    Hi Adam-san,

    Thank you for your clear explanation. I understand VIN_3V3 = 0 is the dead battery and temporary condition.

    I answered it customer. I will let you know once I get feedback from customer. If there is no question from customer, I will close this thread soon.

    Regards,

    Saito