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UCC21520: OUTA for low side Mos, OUTB for high side Mos

Mia Ma
Intellectual 2495 points
Part Number: UCC21520

Hi team,

My customer is using UCC21520 for a high bridge driver application, OUTA for high side Mos, OUTB for low side Mos with boostrap circuit.

And here is layout signal cross in the PCB design, so they are wondering if we could directly change the set up as:

VoutA to low side driver, VSSA link to GND; VoutB to high side driver, VSSB link to switching node; boost trap work paired with OUTB channel.

If above setting is resonable? and any other point we need to change?

Thanks

Best regards

Mia Ma

  • 0
    TI__Expert 5921 points

    Hello Mia,

    Thanks for reaching out. 

    Both channels of the UCC21520 are the same, so either channel can be the high side or low side driver. 

    The setup you described should work without problem.

    If the customer would like us to review the schematic we would be happy to do so.

    Please let us know if this resolves your issue by clicking the green button, or let us know if you have follow up questions.

    Regards,

    Daniel 

  • 0 in reply to Daniel Norwood
    TI__Intellectual 2495 points

    Hi Daniel,

    Clear and thanks a lot for your reply.

    Regards

    Mia