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TPS659037: TPS6590379 Power Sequences question.

Chun Youngsu
Expert 2485 points
Part Number: TPS659037

Dear TI Team,

I want to inquire about the power sequence of the TPS6590379.

I want to know if the Power Sequences work the same when the Main Power is forced off.

Does the power sequences only work when there is input to the PWRON?

Will the power sequences work even if the main power is turned off due to a power outage?

Table 5-10. Due to VSYS-LO of OFF Requests, it is thought that Power Sequences will work even when Main Power is Off due to power failure.

I want to confirm exactly.

Thanks.

  • 0
    TI__Genius 10000 points

    Hi Chun,

    If VSYS_LO is hit, all the rails will shut down at the same time. The power down sequences will not be executed. For all other OFF Requests, while VCC1 is above VSYS_LO, the power down sequence will execute.

    Thanks,

    Nastasha