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  • PMP20859: Questions

    TI Thinks Resolved
    Part Number: PMP20859 Other Parts Discussed in Thread: TPS2372 Hi, I would like to ask why R35 is configured to 27.4k ohms? This contradicts the TPS2372 datasheet which recommends 24.9k ohms. Thank you, Sith

  • PMP20859: Questions

    TI Thinks Resolved
    Part Number: PMP20859 Other Parts Discussed in Thread: TPS3808 , TPS2372 , TPS2373 Hi Experts, I have a few questions regarding this design: Why is there a need for the UVLO of the converter to be pulled low by Q9? I thought that unless the inrush phase…

  • TPS2373: PMP20859 .bt change to .at

    TI Thinks Resolved
    Part Number: TPS2373 Other Parts Discussed in Thread: TPS2378 , TPS2372 , PMP20859 Dear Team, Below redundant PD is for .bt, if I want to implement .at version just change the TPS2372 to TPS2378, right? Or you have better total solution or reference design…
    • Answered

  • PMP20859: Questions about PMP20859

    Resolved
    Part Number: PMP20859 Hi experts, As we know PMP20859 can support up to 3 inputs, two are PSE, one is DC Jack. Now customer is going to use PMP20859 as base to modify for their customer. 1. They would like to remove DC Jack, what components can be…
    • Resolved
    • Answered

  • PMP20859: How to choose R58 size and calculate method?

    Resolved
    Part Number: PMP20859 For PMP20859, I see the R58 package for 35.7kohm is 0603 on PMP20859, but it's only 1/16W. Is it ok? Please help to check how to calculate it?
    • Resolved
    • Answered

  • PMP20859: Dual-Input Redundant PoE PD With Smooth Transition

    Resolved
    Part Number: PMP20859 Other Parts Discussed in Thread: TPS2373 , Hello Sirs, Just need to double check this PMP20859 .(two tps2373 + single isolation flyback ) Is it no problem for two PSE input redundant power input , and system still working without power…
    • Resolved
    • Answered

  • [FAQ] PMP20859: What benefits does the “smooth transition” feature offer in the implementation of Power over Ethernet (PoE) Powered Device (PD)?

    Resolved
    Part Number: PMP20859 What benefits does the “smooth transition” feature offer in the implementation of Power over Ethernet (PoE) Powered Device (PD)?
    • Resolved
    • Answered

  • [FAQ] PMP20859: What are the benefits of using TPS2372 (PoE High-Power PD Interface with Automatic MPS & Autoclass) in the implementation of a “smooth transition” PoE PD reference design?

    Resolved
    Part Number: PMP20859 Other Parts Discussed in Thread: TPS2372 What are the benefits of using TPS2372 (PoE High-Power PD Interface with Automatic MPS & Autoclass) in the implementation of a “smooth transition” PoE PD reference design?
    • Resolved

  • TPS2378: Dual poe input

    TI Thinks Resolved
    Part Number: TPS2378 Other Parts Discussed in Thread: PMP20859 , TPS2372 Dear team The customer's PD application will have two POE input(back side and bottom side), the application condition : The POE input will source by different PSE device. But …

  • RE: TPS2378: TPS2378

    Hello, This is expected behavior. Having the output voltage never drop is called "smooth transition" or "hitless failover" in PoE market. Please see the following materials for training on this topic: Blog: https://e2e.ti.com/blogs_…

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