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UCC27201: UCC27201DR external bootstrap diode

Part Number: UCC27201

Hi TI EE:

              Please help to make sure if UCC27201DR needing external bootstrap diode as bellow figure.

Thank you!

Best Regards

Cheney_Sun

  • Hello Cheney,
    The need for an external boot diode is determined by whether the application is at high frequency and high gate charge MOSFETs. Most applications do not require this external diode, it is likely that yours does not.
    Refer to the application note SNVA083 on guidance regarding the need for an external diode, and selection guidelines.
    Link is: www.ti.com/.../snva083b.pdf


    Regards,
    Richard Herring