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TPS7B63-Q1: About EN control

oaku.hiroshi
Prodigy 190 points
Part Number: TPS7B63-Q1

Hi

I am thinking of controlling EN with MCU.
Since it is written below, can I understand that this is the recommended usage?

Also, I would like to use the 5V output from the MCU for EN, but how much current will be consumed by the EN pin?

  • +1
    TI__Genius 14245 points

    Hi Hiroshi-san,

    You are correct, EN pins are often controlled by MCUs in customer applications. The EN pin current will be very low as you are driving the gate of a mosfet and some auxiliary circuits like ESD protection, which will require <1uA. 

    A 5V output from the MCU should be sufficient, just make sure that the digital high and low signals adhere to the low-level and high-level specs shown below from the EC table.