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UCC256404: I have a question regarding the capacitor on the BLK pin

Part Number: UCC256404


It seems like we had noise on our BLK pin, so we increased the cap to 0.22 uF.  Do you see an issue with this?  Is there a max recommended capacitor for the BLK pin?  In the next board rev, we will try to get a better/lower noise layout, and will lower the resistance value in this resistor divider network, but would like to know what size of capacitor that we can use here.