• State TI Thinks Resolved
  • Locked Locked
  • Replies 3 replies
  • Answers 2 answers
  • Subscribers 63 subscribers
  • Views 96 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

BQ25883: Will VREGN be disable when ADC disable to acheive a low power consumption

Pierson Wang
Prodigy 20 points
Part Number: BQ25883

On the datasheet, it mentioned the chipset power consumption will be around 12uA when ADC disable. While, I wodering if VREGN will be disable or not? Cause it will have much higher fix power conumption if the VREGN not disable.

  • 0
    TI__Genius 10175 points

    Hi Pierson Wang,

    VREG is the output of an internal voltage regulator that is required to bias some of the internal circuitry required for charging. For this reason, it cannot be disabled during charging operation. The LDO should be disabled if there is no input adaptor connected to minimize quiescent current.

    Please let me know if you would like any clarifications.

    Best Regards,

    Juan Ospina 

  • 0
    Prodigy 60 points

    Hi Juan Ospina,

    I found the REGN always on even without any VBUS input. I am wondering any situation would trigger this?

    Thanks,
    Pierson

  • 0 in reply to Pierson Wang
    TI__Genius 10175 points

    Hi Pierson,

    I misread your originial question. Disabling the ADC, while no VBUS input is present, will disable the REGN. In this case, it is likely still enabled because the ADC is enabled.

    Best Regards,

    Juan Ospina