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DS90UB953-Q1: PDB Pin capacitor request

Lanxi Li
Expert 6795 points
Part Number: DS90UB953-Q1

Hello team,

I notice that in 953 datasheet PDB pin capacitor need > 1uF, but in 953A datasheet, the PDB pin need capacitor need > 10uF? Would you mind help clarify why this different or just 953 datasheet typo?

My customer want to use 953 , not 953A with small capacitor, want to double check whether the capacitor can use as 1uF or 2.2uF?

Best regards,

Lanxi Li

  • 0
    TI__Guru** 107740 points

    Hello Lanxi,

    In the coming update we are going to change the 953 and make it same as the 953A, i.e. 10uF Cap.

    But to clarify, this is our recommendation to fulfill the power-up sequence and timings as per Section "9 Power Supply Recommendations". If the customer can fulfill these, they can use any capacitor.