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UCC21225A: power dissipation and cooling

Marcello Deluca
Prodigy 190 points
Part Number: UCC21225A

Tool/software:

Do you have a good examples of PCB layout to achieve good cooling? This part has high current capability but low power capacity  / high thermal resistance..

Alternatively is there a part with similar function / pinout but higher power capacity?. 

  • 0
    TI__Expert 4426 points

    Hi Marcello,

    Thank you for your interest in our devices!

    For optimized thermal performance, we recommend increasing the PCB copper connecting to VDDA, VDDB, VSSA, and VSSB pins.

    Refer 11.1 Layout Guidelines of the datasheet, where it talks about PCB layout considerations. 11.2 Layout Example also provides images of sample layouts. 

    We are currently in development of a new isolated dual channel gate driver with high thermal performance that I would recommend looking into: UCC21231 

    Please feel free to ask any additional questions below.

    Regards,

    Hiroki