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TPS62097: Clarify EN pin electrical specification!

Paul Yeh
Genius 16695 points
Part Number: TPS62097


Hi team,

Could you explain the meaning of EN pin specification? see below table.

Why Vh_en min. value is 2V and typical value is 1.6V?

Why the definition is not like Vh_mo?

Currently customer GPIO voltage is 1.8V, so is it ok to enable TPS62097?

Thanks

  • 0
    TI__Mastermind 22870 points

    Hello Paul,

    1.6V is the typical value for the condition--> Tj=25 degrees and Vin=3.6V. and it does not include all the worst cases. That is why the 2V (worst case) value is specified. 2V gives you the lowest voltage you should pull the EN pin in order to turn on the device reliably.

    If you connect to 1.8V, it can not be 100% reliable that device will turn on in all cases.

    The following paper can help you to understand more about the EN pin specifications.

    https://www.ti.com/lit/an/slyt730/slyt730.pdf 

    Thanks and Best Regards,

    Farheen

  • +1 in reply to Farheen
    TI__Mastermind 22870 points

    Hello Paul,

    Do you have any further question related to this thread? If not, feel free to close this thread by clicking on resolved button.

    Thanks and Best Regards,

    Farheen