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UCC28220 current sense...... any leading edge blanking?

Ram Chandru
Prodigy 170 points
Other Parts Discussed in Thread: UCC28220

I am designing a high power buck converter using interleave controller UCC28220.  It was not specified on the data sheet whether the chip has internal leading edge blanking on the two current sense pins.  On the 'typical application' circuit diagram, there is NO RC filters on the current sense pins...... does that mean there is blanking internally to chip?

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    TI__Mastermind 31580 points
    Hi Ram,

    I can find no mention of leading edge blanking on the CS pins for this device. The EVM uses 1K and 56pF externally so I recommend you take a look at the EVM schematic and the refrence designs on the controller web page for some guidance on suitable filter values.

    Regards

    Peter