• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 63 subscribers
  • Views 154 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TPS40305: How to use EE/SS pin to shutdown the regulatror

Amir Eshraghi
Expert 1270 points
Part Number: TPS40305

Hi

Base on Datasheet EN/SS pin need to be Floating in order to turn on, but how can I connect this to the microcontroller so I can control it.

Thank you

  • 0
    TI__Genius 14455 points

    Hi Amir,

        If you look at the electrical characteristics table on page 5 of the datasheet, if the voltage on EN pin is greater than 1V it will enable the converter and if it is lower than 0.27V, it will disable the converter. So you can connect the GPIO of the microcontroller and ensure that Vih/Vil levels of TPS40305 are met to drive the converter EN pin ON.

    The datasheet is mentioning that you dont have to drive the EN pin on, even if you leave it floating the converter will turn on. 

    Regards,

    Gerold