UCC28070: 1400W PFC turn-on issue

user6004348

Intellectual 380 points

Part Number: UCC28070

Hi TI 1400W PFC issue.docx team

I have some question for ucc28070

Please refer to the attached file

TKS

over 3 years ago

0 Mike O' over 3 years ago

TI__Guru 66135 points

Hello,

I have reached to the appropriate applications engineer and he will be getting back to you shortly.

Regards,

0 Peter Repka over 3 years ago in reply to Mike O'

Prodigy 210 points

Looks like the dither values is 10X too large. The spreadsheet does not evaluate the input values just calculate based on whatever is typed in. Probably the reason for the start-up issues.

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UCC28070: 1400W PFC turn-on issue