• State Resolved
  • Locked Locked
  • Replies 2 replies
  • Subscribers 33 subscribers
  • Views 389 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.

TPS65982: OVP function

Takashi Onawa
Genius 13200 points
Part Number: TPS65982

Hi Team,

My customer wants to know the details how the OVP funtion behaves. Could you follow the 4 questions below?

1. Does TPS65982 also watch VBUS pins for OVP even in source side operation?

2. Are the OVP function's settings also valid even in Non-PD operation?

3. Which register determines OVP threshold for Source side in both PD and Non-PD case?

4. Are there any registers to set spesific OVP voltage level like 0x28[bit 21:16, OvpTripPoint] for each PDOs?

Regards,

Takashi Onawa

  • 0
    TI__Mastermind 36756 points

    Hi Onawa-san,

    1. Yes, OVP will still work when operating as a Source. It will also watch the VBUS pin for OVP when a Source.

    2. Yes, OVP will still work for non-PD devices. The OVP function watches VBUS and will trip if it is a certain percentage higher than the expected voltage. For a non-PD device, the expected voltage is 5V.

    3. OVP is configured in the System Configuration Register (0x28) by the "Over-Voltage Protection Usage" and "Over-Voltage Protection Trip Point" fields.

    4. We do not support setting a different OVP trip point for different PDOs. However, you could set the OVP trip point to a percentage of the expected value using the "Over-Voltage Protection Usage" field in the System Configuration Register (0x28).

    If this answers your question, PLEASE select  This resolved my issue 

    Thank you,

    Eric

  • 0 in reply to Eric Beljaars
    TI__Genius 13200 points
    Hi Eric-san,

    Thanks, I understood.

    Regards,
    Takashi Onawa