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UCC21520: UCC21520 control

Tianlin Lu
Prodigy 20 points
Part Number: UCC21520

I want use the UCC21520 to control the marx curcuits, UCC21520 will be used to control the IGBT(1.2KV), so:

1. If the switch voltage is 750V, is the UCC21520 work voltage is suit to control the IGBT?

2. UCC21520 has two channel, is it can be worked independently, I means the two channel both worked on high side or low side or mixed(half bridge), depend on my choice. And th control signal INA/INB can be a constant signal(100%  high voltage or 0v)?

  • 0
    TI__Intellectual 2991 points

    Hi Tianlin,

    Thank you for your interest in our device!

    Answering your questions:

    1.) Yes, the UCC21520 is rated to sufficiently control a 750V switch. 

    2.) Correct, the two channels are independent and can be used to drive a half-bridge or both low side / high side. The inputs can also be a constant high or low as well.

    Hope this answers your questions.

    Regards,

    Hiroki