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UCC27524: can't pass the EMC test

Howard Zou
Genius 12365 points
Part Number: UCC27524
Other Parts Discussed in Thread: TPS2812

Hi,

we promoted UCC27524 to replace IR4427 on the customer's boost circuit to drive the low side IGBT.

With IR4427 they can pass the EMC test but not with our UCC27524. They've adjusted the value of the gate drive resistor but it doesn't help.

The main difference is that our device's drive current is larger.

Since they will not change their PCB board, the only way we can do is to find a smaller drive current device, which one do you promote? TPS2812?

  • 0
    TI__Genius 13445 points

    Hello Howard, 

    Thanks for your help promoting our drivers.

    I will send you an email shortly to further discuss this opportunity.

    Meanwhile, I will mark this thread as "resolved" but feel free to post if you have additional questions.

    Regards,

    -Mamadou