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TPS2553-1: About release conditions of current limit

Guru 21045 points
Part Number: TPS2553-1

Hi Team,

 

I understand that the release conditions of current limit are power is cycled or the device enable is toggled.

I would like to know the period of LOW of each condition (Period_1 and Period_2).

Could you please let us know if you have a recommended time?


 

 

Regards,

Kanemaru

  • Hi Team,

     

    Could you please let us know the current status regarding this thread?

    If you could reply by tomorrow, it would be very helpful.

     

    I’d greatly appreciate your verification.

     

    Regards,

    Kanemaru

  • Hi, Kanemaru,

    Sorry for late reply. I planned to do a test at the beginning, but we got an urgent case last week and this week. So according to datasheet, I recommend you to use a value higher than turn on time, like 4ms.

    Apologize again.

    Best Regards,

    Bob

  • Hi Bob-san,

     

    Thank you for your prompt reply and your comment.

    I understand that your recommended time is more than turn on time (3ms), like 4ms.

     

    By the way, would you carry out a test of TPS2553-1 if an urgent item is resolved?

     

    Regards,

    Kanemaru

  • Hi, Kanemaru-san,

    No problem. We plan to work on the urgent case this week. So I can do test of TPS2553-1 next week. Is this okay for you?

    Regards,

    Bob

  • Hi Bob-san,

    Thank you for your kind support.

    I’m looking forward to hearing from you.

    Regards,

    Kanemaru

  • Hi, Kanemaru-san,

    There's no problem with 4ms toggle time. I did a test to validate it.

    For EN toggle time, even a 1us Low level toggle time will  enable TPS2553-1 from latch off.

    For Vin cycle time, even a 100us low level cycle time will power on TPS2553-1 from latch off.

    Because of the limitation of instruments, I can't test the minimum time of toggle time.

    Regards,

    Bob

  • Hi Bob-san,

    I’m sorry for the delay in my reply.

    Thank you for your kind support.

    I understand. Thank you very much.

    Regards,

    Kanemaru