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UCC21540: DT pin floating aaplication

Chao Fu Chen
Intellectual 920 points
Part Number: UCC21540

Hi Team,

My customer wonder to use this part and they just asking that if they let the DT pin to floating on his board.

Did it will happen any issue unstable or concern ? please share your idea and comment to let me know.Thanks!

Eddie

  • 0
    TI__Expert 4065 points

    Hi Eddie,

    We don't recommend leaving this pin floating because external noise can couple to this pin with more ease and affect the deadtime amount. I recommend either tying the pin to VCC or tying it to ground with a resistor in parallel with a capacitor. 

    Regards,

    Krystian