Other Parts Discussed in Thread: UCC28056, UCC28051
Hi Team,
EVM audio noise comes out while VINAC up to 264V~280V, If want to avoid this, how can I adjust?
Thank you.
This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
Hi Team,
EVM audio noise comes out while VINAC up to 264V~280V, If want to avoid this, how can I adjust?
Thank you.
Hi Chentsu,
Thanks for the response. While UCC28056 can support universal type input ranges from 85Vac to 265Vac, if an application requires wider input voltage range than this (80Vac to 305V for example), UCC28051 would be a better fit.As you noted, the brown-in threshold of the ZCD/CS pin would limit the maximum allowable bulk voltage setting to avoid tripping OVP2 protection.
Best Regards,
Ben Lough