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  • PMP21455: Suggestions for implementation with minimal components

    Resolved
    Part Number: PMP21455 Other Parts Discussed in Thread: PMP20708 , UCC28881 Tool/software: Hi, We're designing a very compact mains powered device, and the PMP21455 specs and small form factor fit our requirements. I've have some questions in regards…
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    • Answered

  • PMP21455: Check the part number of the transformer

    Resolved
    Part Number: PMP21455 Other Parts Discussed in Thread: PMP20708 Tool/software: Hi, Specification of PMP21455 design is: Vout = 5 V, Iout = 200 mA, but when I checked 750316908 transformer parameters on the Wurth's page: https://www.we-online.com/en…
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  • PMP21455: Why using external current source

    TI Thinks Resolved
    Part Number: PMP21455 Other Parts Discussed in Thread: UCC28881 , , PMP20708 In your reference design PMP21455, UCC28881's Pin 4 (named as output in the datasheet) is fed from an external current source. Is that correct? Why are you suggesting to use…
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  • PMP21455: Wrong schematic symbol in reference design

    Resolved
    Part Number: PMP21455 Dear Sir or Madame, I have built your reference design and during that process noticed that the schematic symbol (pinout) for the transformer is wrong at least for the secondary side. Could you confirm? Best regards Lukas
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  • RE: UCC28881: Isolated power supply design with UCC28881

    Hi, Vikram There are many reference designs using UCC28881 for isolated power supply, below reference design is recommended. https://www.ti.com.cn/tool/cn/PMP21455 BR, Yunsheng

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