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UCC28950: 6.6kw obc +dc- dc converter design with only using ASIC IC

Part Number: UCC28950
Other Parts Discussed in Thread: UCC28070, UCC28951, UCC28070A
Hi Experts,
Good day!
Our customer wanted to develop 6.6kW OBC by using only analog control based design.
There is a strict restriction that they do not to use any digital control. They have finalized for PFC UCC28070 and PSFB UCC28950 but both IC are not in stock.
So we would like to know any other IC available for the same power level. If not PSFB they are ready to use LLC topology as well. 
Thank you in advance. 
Best regards,
Jonathan