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TPS709: EN pin of TPS70933DRV

Wendy Wang1
Genius 16920 points
Part Number: TPS709

Hi team,

According to the datasheet of TPS70933DRV, the EN pin can be left open as chip enabled. 

In my application, the input voltage is 12~25V. From reliability & EMS point of view, what is the best way to deal with EN pin? is there any concerns to left open?

Best regards.

Wendy

  • +1
    TI__Mastermind 37015 points

    Hi Wendy,

    You can leave the EN pin floating.  If you want to tie it to Vin externally, you will need to use a voltage divider to reduce the voltage from the Vin rail.  A divider ratio of 6/25, maximum, should work from Vin to the enable pin.

    Thanks,

    - Stephen