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C-SIP RED Platform, reset supervisor VCC

Forums › Reference, Evaluation, and Development Boards › C-SIP RED Platform, reset supervisor VCC

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    • January 21, 2021 at 3:33 pm #11146
      Scott Hemmelgarnscott_vubiq
      Participant

        Hello,

        On the C-SIP RED schematic, the reset supervisor is monitoring SYS_VDD1_3P3V. Is there some significance to that choice of power rails?

        Thank you,

        Scott

      • January 25, 2021 at 10:52 am #11155
        Neeraj Dantu
        Moderator

          Scott,

          SYS_VDD1_3P3V is directly powered by the SYS_VOUT output of the PMIC. SYS_VOUT is switched from all the inputs of the PMIC(AC, USB, BAT). SYS_VDD1_3P3V was chosen as it is closest to SYS_VOUT, which is also independent from the internal power rails of the PMIC.

          Best,

          Neeraj

        • January 26, 2021 at 10:17 am #11160
          Scott Hemmelgarnscott_vubiq
          Participant

            Neeraj,

            Thank you for the detailed explanation, very helpful.

            Scott

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