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UCC256402: Questions in design about ISNS, VCR and RVCC

Part Number: UCC256402

Tool/software:

Hi E2E,

We are designing a product with UCC256402A.

if ISNS, VCR  the capacitor CISNS and CVCR(upper & lower)  can be designed as follow?
ISNS sampling: C+R+R
VCR sampling: C+R+C

In addition, when the VCC power supply is interrupted, only the HV power supply, Is there still a +12V output by RVCC?

Thanks