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TPS53319: TPS53319 RVOP 1uF cap to solve the mis OVP issue

Frank Xiao
Genius 12055 points
Part Number: TPS53319

Hi team,

My customer is using the TPS53319 now and meets mis OVP issue dure to the noise of the pin5(ROVP) below. currently we have used an cap C97 with 1uF to solve the issue. Whether it has risks to use the 1uF cap here? Thanks.

  • 0
    TI__Mastermind 23695 points

    Since R112 is open,  make R111 0 ohms to eliminate the noise coupling. 

      If R112 and R111 are present , lower the values to 1kOhm to reduce the noise coupling.   

    The C97 may be used, but the capacitor on ROVP may slow the redundant OVP response.