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  • TPS23754: poe out put error

    Part Number: TPS23754 bdrsu_v4_230425.pdf Under low temperature conditions, POE power supply is unstable, and in severe cases, it cannot output; Please help check the schematic design and analyze possible causes.

  • RE: TPS23754: schematic check

    Hi GARETH, Thanks for your test. According to the VSS-RTN voltage, it looks like the hotswap has a short-circuit fault. But this normally leads to a hiccup mode which is different from your case. I am wondering if you could check whether Q2, Q4, or Q6 was…
    • Answered

  • TPS23754: PoE at 18W

    Resolved
    Part Number: TPS23754 Other Parts Discussed in Thread: TPS23861 , TPS23882 , TIDA-00465 , , TPS23756 Hi Team, A customer is looking into developing a RFID reader PoE PD with 18W power consumption and max 100MBit/s. Can you check if the following statements…
    • Resolved
    • Answered

  • TPS23754: can you share the DSN format file of EVM to customer

    Resolved
    Part Number: TPS23754 Hi Team customer want to refer to our EVM design of TPS23754 can we offer the DSN format file? Thank you! Best regards Joe AUG 10
    • Resolved
    • Answered

  • RE: TPS23754EVM-383: tps23754 can't power up below 0

    Resolved
    Hi Qizhi, If there is no concern about EMI, then there should be no impact of removing L147 and L148. Best regards, Nahiyan Muzaffar
    • Answered

  • TPS23754: IEEE802.3at PoE ethernet cable loss

    Resolved
    Other Parts Discussed in Thread: TPS23754 We would like to know how where the 4.5W gap comes between 802.3 at PSE 30W and PD 25.5W. From IEEE calculated formula, type 2 Rchan is DC pair loop resistance 12.5ohm What is the difference between Rchan and…
    • Resolved
    • Answered

  • RE: TPS23754: Could TPS23754 detect the passive PSE injector? if not, any circuits recommended to achieve this?

    Resolved
    Closing thread, please click "+ Ask a related question" for further questions! Thanks and Regards, Raymond Lin
    • Answered

  • TPS23754: Power gap between PSE output and PD input

    Resolved
    Part Number: TPS23754 Hi, Sir, According to the std of 802.3at, the PSE needs to output 30W and only 25.4W is guaranteed for PD. 4.6W gap was reserved for the loss consumed by cable. We did calculations of the cable loss with different cables. Could you…
    • Resolved

  • TPS23754: IBIS/AMI or Spice simulation model

    TI Thinks Resolved
    Part Number: TPS23754 Hi Team, Good day ， Please help provide an IBIS/AMI or Spice simulation model of below parts ： TPS23754PWPR TPS3823-33DBVR TPS53689RSBR TPS536C9RSLR Best Regards James Man
    • Answered

  • TPS23754: PoE ORing option for multiple power outputs

    Resolved
    Part Number: TPS23754 Other Parts Discussed in Thread: PMP6812 , TPS23731 Hi all, I would like to get advice about the most reasonable way to implement redundant power supply for my device by powering it via 2 DC power supplies and 1 PoE as backup. My end…
    • Resolved

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