This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TPS7A3001-EP: Voltage on Pin 6 (NR/SS) on P/N TPS7A3001-EP

Part Number: TPS7A3001-EP

Sirs,

I am doing a Voltage Stress analysis on a 0.01uF Cap connected to Pin 6 (NR/SS) on P/N TPS7A3001-EP and need to know the typical and worse case Voltages.  Please get back to me promptly as we need it for a PDR.  Thank you.

Charles Neill

JPL Sr. Reliability Engineering Analyst II

281-507-7447 C

Charles.Neill@jpl.nasa.gov

  • Hello Charles,

    I'm not sure I entirely understand your question. You can see the internal reference voltage range from -1.22V to -1.142V on page 4 of the datasheet in the electrical characteristics section. This test condition has Vnr/ss = Vref. Additionally, you can see the absolute maximum range from Vnr/ss to GND is -2V to 0.3V. The NR/SS pin to IN absolute max range is -0.3 to 36V. The absolute maximum ratings are on page 3 of the datasheet.

    Perhaps that answers your question. If not please let me know.

    Thanks,
    Kyle
  • Kyle, I think you answered my question but just to confirm. For Pin 6 (NR/SS) would you agree that -2V (or absolute value of is 2V) should be used for my Voltage Stress calculation out to the capacitor? Is the 2V the typical value seen primarily at that pin? I don't want to use any Absolute Max voltage of 36V since that will not be there. The Cap at Pin 6 is a 0.01uF and rated at 25V.
  • Hello Charles,
    That is correct. Using -2V for pin 6 (NR/SS) would be good to use for you voltage stress calculation. However, the typical value seen at that pin is -1.184V.
    Thanks,
    Kyle