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DCP020505 in parallel

Aaron Spaete
Expert 4527 points
Other Parts Discussed in Thread: DCP020505

Team,

My customer would like to possibly put 3 of these in parallet to achieve a 6 W solution.  Is this a safe option?

As a secondary request, how efficient are these at light loads?   Do they have a ECO/pulse skip feature? 

Thanks,

Aaron

  • 0
    TI__Expert 7055 points

    Hi Aaron -

    It is possible to connect multiple DCP020505 in parallel to get higher output capacity.  The data sheet recommends also using the SYNC feature to eliminate any beat frequency issues that may occur if the oscillators are left to free run.

    Regarding the light load efficiency, there is a table in the data sheet that describes the No Load Current for the various family devices.  With no load, it can be between 12mA, and 27mA depending on which device is being used.

    thanks,

    Jake


    DCP020505: Miniature, 2W Isolated Unregulated DC/DC Converters
    Product Folder: http://www.ti.com/product/dcp020505

     

     

  • 0 in reply to Jake Salmi
    TI__Mastermind 38230 points

    The DCx products including the DCP020505U  are unregulated converters. They only share when the  Vout voltageof one  versus output current droops to less the other. . They can share about to 75% of the 2W rating and not more than 2 are recommended in parallel. The output voltege unloaded  or about 5mA load   can be as high as 11V .

    At 75% load( 300mA)  on one DCP020505 with exactly 5 Vin(+/-1%)  the  output voltage   is 5V with range of  4.75V to 5.25V.

    Tom