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TPS2597: TPS25970A Max. tITIMER...

Peter Tseng
Mastermind 6230 points
Part Number: TPS2597

Tool/software:

Hi Team,

May I know what is the Max. tITIMER for TPS25970A?

I know the equation is   

Is there any limitation to choose CITIMER?

Thanks.

  • +1
    TI__Mastermind 39315 points

    Hi Peter,

    Increasing the itimer will have two impacts in expected operation.

    1. Bigger itimer cap will require longer time to charge back after the faults so if multiple fault events occur, then it is possible that second event can create OCP response before full ITIMER time delay. 

    2. During startup, we don't want ITIMER to remain low and cause false fault trip so we will have to adjust the startup (dvdt cap) accordingly so that ITIMER charge time is shorter than the startup time.

    Best regards,
    Arush