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UCC21225A: as one low side driver only

Jerry Chen
Expert 5110 points
Part Number: UCC21225A

Hi,

In a project, it needs to shut down OUTA by turning off Input A PWM. At this time, INB and OUTB are still working. How to configure UCC21225A? Especially, how to deal with DT pin? As no signal is on INA, I don't need any dead time or delay from INB to OUTB brought by DT setting.

Thanks.

  • 0
    TI__Guru**** 189401 points

    Hi Jerry,

    Good to hear from you!

    Your use case seems fine. Since you aren't using both channels, the deadtime setting isn't critical, so you can leave it configured as their normal case. If you tie it to VCCI, it will disable the internal DT.

    Let us know if you have any further questions!