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UCC21225A: High side driver for half bridge rectifier

Part Number: UCC21225A
Other Parts Discussed in Thread: UCC21222

Hi Gate driver folks,

Could you help find the proper high side gate driver IC for the half bridge rectifier application? You can find the link below for more details on the application.

I'm looking at UCC21225A but not sure if it's the best suitable device. I believe the typical propagation delay spec of UCC21225A is appealing. Could you advise?



  • Hi Ella,

    From the information you share the UCC21225 looks like it would be a good option. Since it is a dual channel driver one channel could be used for each of the high side FETs. As you mention, this driver has best in class propagation delay, and is one of the smallest isolated gate drivers available.

    Another option would be the UCC21222, a driver with similar functionality to UCC21225, but a newer version. Unfortunately, this device is not available in quite as small a package as UCC21225.

    In short, UCC21225 is my best recommendation unless you are able to provide more information such as the power FETs being used, and the voltages present.

    If this answers your question please click the green button, otherwise let us know how we can continue to help.