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UCC28634: 15Vac-50Vac

Johnson Cheah1
Prodigy 20 points
Part Number: UCC28634
Other Parts Discussed in Thread: UCC28C43

Hi,

Is UCC28634 support 15Vac-50Vac input voltage? If not, any reference design or solution that can do it? 

  • 0
    TI__Guru* 85616 points

    Hello,

    The HVC PSR controllers generally have a UVLO turn-on off 21 V.  These were designed for line applications of 85 V AC or greater.

    In this low voltage application the UCC28C43/5 devices may be a better choice due to its low UVLO turn on of less than 8.4 V.

    You might try searching TI reference design data base to see if their is a design that meets your needs.  You can find the reference designs at the following link.

    Please note that low voltage AC designs are not popular I would search on  15 to 100V input designs with your output power requirements.  There might be a design that you can already use.

    If you decide to use the UCC28C43/5 please repost with that part number in the title so the appropriate applications engineer can you help you with your design.

    Regards,

    Mike