• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 63 subscribers
  • Views 42 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.

Original question:

TPS2597: TPS25970A Active Current limit Level vs Short Circuit

TPS2597: Active Current Limit

Takanobu Shinoda
Prodigy 10 points
Part Number: TPS2597

Tool/software:

Hi team,

I am currently evaluating TPS25970ARPW. I set my current limit value(ILIM) to be at 0.82A.

I verified that the active current limit is engaged at a load current value of 0.8A using an electronic load, as shown in the image bellow.

However, when I ramp the input current to 0.83A, the Vout drops to 0V and then starts "auto-retry" at 190ms intervals.

This behavior does not sees to be in line with the operation of the active current limit.

Is this considered normal operation?

Best, Shinoda.

  • +1
    TI__Mastermind 34985 points

    Hi Shinoda-san,

    Are you using CC load. Can you retry this with CR mode.

    In CC mode, load acts like constant current sink and device acts like constant current source but these are set at different values so this may result in unexpected behavior.

    Best regards,
    Arush