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UC3842: UC3842

Part Number: UC3842

Dear Texas Instruments, 

i am designing my switch mode power supply and intend to use the UC3842, however i need some assistance with the part numbers or values for the components i have highlighted in the attached schematic i extracted from the TI datasheet for UC3842 typical application example. 

Thank you

regards, 

Kawesa

  • Kawesa

    Thanks for your interest in TI.

    What is your input voltage range, output voltage, and output current maximum?

    You can also search for reference designs at Ti.com/powerlab in the meantime. Or you can use the Webench tool at TI.com/Webench

    Or the Webench tool specific to uc3842 here:

    Additionally I will also mention ucc38c42 is the newest version of the 3842 family.

    Regards

    John

  • In reply to John Stevens:

    Thank you John for the reply,
    My input

    voltage range is 220 - 260 VAC

    output

    5 VDC 3A

    let me also check out with Webench and the ucc38c42
  • In reply to kawesa Nasser:

    Kawesa,

    Yes those specifications should work fine for UCC38C42. The quickest path for a schematic would be webench. Let me know if you have other questions but I'll assume you are all set at this point.

    Regards,

    John

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