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Is there a suitable led output constant current drive scheme recommended

Tony xiong
Intellectual 670 points
Other Parts Discussed in Thread: UCC25600

Hi Guys:

          Is there a suitable led output constant current drive scheme and IC part number recommended?

Application: LED Driver;

Input electricity is three - phase electricity, Select one of the two - phase electrical work when working;

          Parameter:

Nominal  Vin:277V~480Vac:

              Vout:42V;

              Pout:120W

              mode:Constant current output

Can the voltage of mos/diode stress be no more than 650V? thank you!

        

  • 0
    TI__Genius 13660 points

    Hi Tony,

    Sorry I can't get the meaning of "Input electricity is three - phase electricity, Select one of the two - phase electrical work when working".

    May you explain it?  Thanks.

    Teng

  • 0 in reply to Teng Feng
    Intellectual 670 points

    Hi  Teng

           Sorry, Maybe I didn't make myself clear。

    For example， three - phase electricity voltage is 380V;  So  select the two-phase voltage  is380V;

    When the customer says three-phase electricity, he just means that the input voltage is high;

          Give me an input voltage range: Nominal  Vin:277V~480Vac:Is there a suitable reference design

    Nominal  Vin:277V~480Vac:

                  Vout:42V;

                  Pout:120W

                  mode:Constant current output

    Thank you

            

  • 0 in reply to Tony xiong
    TI__Genius 13660 points

    Hi Tony,

    I think LLC controller UCC25600 is suitable for this spec, which has no high voltage start up functionality and can work with high voltage input.

    Regards,
    Teng