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UCC20225A-Q1: UCC20225A-Q1

user5181082
Prodigy 20 points
Part Number: UCC20225A-Q1
Other Parts Discussed in Thread: UCC21225A

Hello,

I am looking for suitable gate driver for my Full Bridge application. There are variety of gate drivers listed on TI website that I may use. I came across UCC20225A-Q1 part numbered product and went through its datasheet. I think, this product fits my application. However, ıts datasheet does not say that this IC is compatible with Full Bridge Inverter applications even though its features suits my application. Should I be worried with selecting this IC for my project?

There are other products such as UCC21225A of which datasheet mentions product's suitability with Inverters. Even though these two IC's features seems to be equal to me, why not one is not applicable to Inverter apllications while another is?

Thank you

Alper

  • 0
    TI__Guru**** 189399 points

    Hi, Alper,

    Welcome to e2e, and thanks for your interest in our products!

    The difference between these two parts is the input structure. The UCC20225A-Q1 only has one PWM input, whereas the UCC21225A has two PWM inputs which allows you to independently control the output transistors.

    So, you need to choose the appropriate device based on your modulation scheme.

    Let us know if you have further questions.

  • 0 in reply to Don Dapkus
    Prodigy 115 points

    Hi Don,

    Thank you for your reply. One more question. Some of TI gate drivers are applicable for both MOSFETs and GaN switches whereas some TI gate drivers are applicable for only MOSFETs. I don't see any difference  between MOSFET and GaN drivers. Could you tell me the difference between two gate drivers apart from  one driven with one pwm while another has two inputs?

    For example UCC21225A is for both  MOSFET and GaNs whereas UCC20225A-Q1 is for MOSFET and IGBTs. What makes UCC21225A special as GaN driver?

  • 0 in reply to Alper Çimendağ
    TI__Guru**** 189399 points

    Hi, Alper,

    Some GaN devices have lower gate drive requirements, so you need to select one of our drivers with the appropriate UVLO (undervoltage lock out) levels. There is nothing else special, so if your GaN device has a higher gate drive requirement, you can use one of our parts with higher UVLO, even if it doesn't say GaN specifically.

    If this answered your question, please press the green button to let us know.

  • 0 in reply to Don Dapkus
    Prodigy 20 points

    Hi Don,

    Your answer helped me figure it out. Thank you.

    Alper