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DCP022415D: No output

Michael Stadtler
Prodigy 140 points
Part Number: DCP022415D
Other Parts Discussed in Thread: ISO124

I get no output from multiple devices.

Do I need an output load?

Do I need to do anything with the SYNC pin?

Are any caps required for a bench test?

Thanks

  • 0
    TI__Mastermind 38230 points

    Michael;:

    DCP02 series including DCP022415DP requires a minimum 0.47 µF input ceramic capacitor with 1.0uF  ceramic capacitor on each output to ground. Does this application have any connection o n the input sync. pin to ground? or any stray capacitance greater than 3-5pF on this pin?

     What is the current rating on the input 24V power source?

    What is the general secondary application? is it a IGBT drive circuit  or FET driver with high voltage on the secondary ground( com ?

    Contact me directly at tguerin@ti.com on your response? Also include, if possible your tel. # in this response.

    Tom

  • 0 in reply to Tom Guerin
    Prodigy 140 points

    thanks for that I will try the cap today

    No connection connection to sync pin.

    The supply is 10A.

    The application is "isolated supplies for ISO124 devices"

  • 0 in reply to Michael Stadtler
    TI__Mastermind 38230 points

    Michael:

    Thanks for  the information on DCP022415Db using the ISO124 . DCP022415 when it has no load on each  ± output can be as high as 30V . Is there a  voltage  difference between primary  and secondary isolation  grounds of > 42VAC or 60VDC?

    Can you sent me an e-mail so we can discuss this application.

    Tom