• State TI Thinks Resolved
  • Locked Locked
  • Replies 4 replies
  • Answers 3 answers
  • Subscribers 34 subscribers
  • Views 1061 views
  • Users 0 members are here
Support feedback
Options
Options
Related

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.

TPS65981: Can be used to power up a portable speaker?

ikon
Genius 5355 points
Part Number: TPS65981
Other Parts Discussed in Thread: TPS25740B

Hi Support,

Please advise if the TPS65981 can be used to power up a portable speaker just like AC/DC adaptor.

The portable speaker may or may not have internal battery.

Does not need the USB interface to PC. Just need the USB Power delivery portion.

Considering TPS65981 but need single function, preferably it works without external MCU or serial Flash for chip configuration.

Thanks.

  • 0
    TI__Mastermind 36756 points
    Hi Ikon,

    The TPS65981 can be used to handle the power delivery section of your design. However, the TPS65981 needs to have an external SPI Flash chip on the board to load configuration from. Without the SPI Flash, the TPS65981 will not boot.

    Thank you,
    Eric
  • 0
    TI__Guru 50120 points

    Hi Ikon,

    If you are only interested in USB Power Delivery then the TPS25740B can perform that job without the need for serial flash chip config. The TPS25740B DFP PD controller that uses a resistive divider circuitry to implement the default voltage setting of 5V,9V,15V,20V or adjusted for 5V,9V,12V,15V.

    For more information, please take a look at the following:

    Datasheet: http://www.ti.com/lit/ds/symlink/tps25740b.pdf

    Regards,

    Jimmy Hua

  • 0 in reply to Jimmy Hua
    Genius 5355 points

    Hi Jimmy,

    Yes. They need something similar but this chip is for power source side. Portable speaker is on power ‘sink’ side.

    Any other recommendation?

    Thanks.

  • 0 in reply to ikon
    TI__Guru 50120 points

    Hi Ikon,

    Thanks for the clarification. With that said, I don't think there are any other products that I am aware of that implements simple state machine process for a USB PD UFP application.


    If you are interested in making a power source then the TPS25740B would be a good choice. Otherwise for power sink, I would also agree with Eric that the TPS65981 would be able to satisfy your intended application.

    Regards,
    Jimmy Hua