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TPS3850: Sequence requirement and terminal proccecing of unused pin

tateo yamashiro
Guru 10890 points
Part Number: TPS3850

Hi,

We got a question from the customer about TPS3850.
Could you help us?

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

  SENSE
  VDD
  WDI

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

  /RESET
  /WDO

Best Regards,
tateo

  • 0
    TI__Genius 12630 points

    Tateo,

    There is no start up or shutdown sequence for SENSE, VDD, WDI. SENSE and WDI can be on before VDD comes on or SENSE and WDI can some on after VDD. WDI is ignored until t_RST after SENSE comes up.

    If /RESET and /WDO are not used, leave floating or connect to GND. If not using watchdog feature, connect WDI to GND also.

    I hope this answers your questions!

    -Michael