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Original question:

TPS65100-Q1: TPS65100-Q1 schematic add RC delay

TPS65100-Q1: TPS65100-Q1 schematic add RC delay

Lawrence He
Genius 3280 points
Part Number: TPS65100-Q1

Dear,
our client change input capacitor and output capacitor, Capacitance and size, have any side effect?
and add RC delay  as below schematic:

217EA01-1A0_L TPS65100.pdf

If any suggestion, Please advise me.

Thanks,

Best regards,

Lawrence.

  • 0
    TI__Mastermind 18550 points
    Hello Lawrence,
    I will review and get back to you with any feedback in the next couple of days.

    Kind Regards,
    Liaqat
  • 0
    TI__Mastermind 18550 points

    Hello Lawrence,

    I reviewed the input and output capacitance and it should be fine as long as multiple capacitors are placed tightly together and close to device pins. For added RC delay on EN, I would suggest to change bottom resistor R118 to approx. 30K ohm. This is done so that the EN pin will have a high enough voltage to cross Vih logic threshold (which is 1.5V per datasheet spec.) with some margin to enable the device. I think had reviewed this schematics previously and may have missed this point before.

    Kind Regards,

    Liaqat