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UCC25660: LLC controller with Capacitive Mode Detection

Conor
Mastermind 8860 points
Part Number: UCC25660

Hi,

I'm considering TI's LLC controller as a replacement for the SSC3S902.
https://www.semicon.sanken-ele.co.jp/sk_content/ssc3s900_ds_en.pdf

The following features are required.
・Automatic Dead Time Adjustment
・Capacitive Mode Detection
・Adjustable soft start function

I think the UC25640x/UCC25660 series is applicable, but if you have any recommendations or advice as a replacement, please let me know.

Thanks,

Conor

  • 0
    TI__Mastermind 44220 points

    HI Conor,

    The UCC25660 has the above features with a much more robust Capacitive Mode avoidance scheme. The soft-start is integrated and internally controlled to avoid premature termination. 

    Please note the SSC3S902 has a maximum oscillator frequency of ~300kHz. The UCC25660 can resonate at 750kHz. This can dramatically reduce the size of the magnetics to help improve power density.