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LM25141-Q1: Sequence requirement and terminal proccecing of unused pin

tateo yamashiro
Guru 10890 points
Part Number: LM25141-Q1

Hi,

We got a question from the customer about LM25141-Q1.
Could you help us?

[Question]
- Is there start-up and shutdown sequence requirement between following pins?

  VIN
  EN
  DEMB

- If the following pins is unused, what is the recommended terminal procceing?

  PG

Best Regards,
tateo

  • 0
    TI__Mastermind 25590 points

    Tateo-san,

    There is generally no sequencing between these pins, just make sure that DEMB does not exceed VDD+0.3V as specified in the, "Absolute Maximum Ratings" table. This would most likely only be an issue if you applied a voltage to DEMB externally before powering the LM25141-Q1.

    I'm not sure I understand the question about PG. We recommend connecting a 10k resistor to logic-high if you are using this signal. If not, it can be left floating.

    -Sam