UCC21222-Q1: Channel to Channel abs voltage rating

Hi Koh,

I work on the applications team in the high power drivers group and can help you with your question.

UCC21222-Q1 should have the same channel to channel voltage rating as UCC21520-Q1. Keep in mind that this is the functional rating for the internal of the device. Externally, channel to channel voltage is limited by creepage and clearance, which normally are determined by working voltage, material group, and pollution degree. Also, we would not recommend higher ch-ch voltage than the primary-to-secondary ratings, listed on pg. 6 of the datasheet.

Can you tell me more about your application? What working voltage is being switched? What standard is being used to determine creepage/clearance requirements?

If this answered your question, could you please press the green button? If not, please feel free to ask more questions.

Thanks and best regards,

John