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UCC21520: DT pin application

Charles Zhang1
Expert 3410 points
Part Number: UCC21520

Hi Team,

Is okay to place a ~nF capacitor from DT pin to GND rather than connecting DT pin to VCC when DT function is unused? 

Regards,

  • 0
    TI__Expert 3575 points

    Hi Charles Zhang, 

    It is recommended to short DT to VCCI, however, DT pin can also be shorted to GND or to a small cap. DT pin has a Steady State 0.8V that saturates at 1mA, any current above 1mA will saturate this pin. 

    Let us know if this answers you question. 

    Best 

    Francisco Lauzurique