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.

TPS25910: Does it need to control slew rate if application does not support USB-PD?

Part Number: TPS25910
Other Parts Discussed in Thread: TIDA-00728, , TPS25947

Hello Experts,

My customer is interested in TIDA-00728 for USB Type-C front port. Customer has question as follows. Would you answer them, please?
- TPS25910 is adopted in TIDA-00728 for VBUS switch. TPS25910 can be controlled an inrush current slew rate by adding Cext between GATE and GND. Does it need to control slew rate if application does not support USB-PD? If so, why it is needed?

Best Regards,
Fujiwara

  • Hi Fujiwara,

    TPS25910 has two protection mechanism : Power limiting and slew rate control.

    When Cext=0 then power limiting is acting and  device control current through it , we can not control current. So if current is large such that it can damage the load after TPS25910 then we can go with slew rate control.

    By adding cext we can control inrush current and keep it below a safe level that our load can tolerate.

    We have a new device TPS25947 suitable for USB Type-C,USB-PD applications.

    Regards

    Kunal Goel

  • Hi Fujiwara,

    Closing thread for now. Let me know if any other concern.

    Regards

    Kunal Goel