• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 63 subscribers
  • Views 147 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.

TPS25750: No Vbus power, but Vin_3V3, device stays in PTCH mode

Kevin Rowett
Prodigy 70 points
Part Number: TPS25750
Other Parts Discussed in Thread: BQ25792, , TPS25751

Tool/software:

IN our config, we supply power via tow different source, to the BQ25792.  One of those sources is a 12V supply.   The other source is the '750.  

We have Vin_3V3 connected to the PCBA 3.3V rail.  

If the '750 doesn't see a USB-C signal, and no power on VBUS, then the device reports always in PTCH mode.  If we connect a USB-C PD to the '750, then the firmware loads from the EEPROM, and the device goes to APP mode.

  • 0
    TI__Mastermind 30482 points

    Hi Kevin, 

    Thank you for reaching out!

    I would like to highlight our follow-on device, the TPS25751, recommended for all new designs. This device is pin-to-pin compatible with the TPS25750 and addresses known issues with battery charger control on the TPS25750. Please see the following FAQ for more information.

    Best Regards, 

    Aya Khedr