• DC2583A (LT4294) does not supply enough power to the load

    I've arranged the DC2583A (LT4294) and DC2660A as DCDC (LT8646S) boards as shown:

    Then I've connected the SW-525 PoE switch + 48V/100W Power Supply and an electronic load for the LT8646S 5V output.

    • Jumper selection are set to JP11 and JP12 (40W…
  • DC2583A (LT4294) does not supply enough power to the load

    I've arranged the DC2583A (LT4294) and DC2660A as DCDC (LT8646S) boards as shown:

    Then I've connected the SW-525 PoE switch + 48V/100W Power Supply and an electronic load for the LT8646S 5V output.

    • Jumper selection are set to JP11 and JP12 (40W…
  • LT4294 Power delivery issue

    Hello,

    Few months ago I had a session here related to the LT4294IMS#PBF PD issue, that was found to be related to the hot swap N-FET SOA characteristics, that were not good enough.

    I have replaced the transistor(to CSD19537Q3) with better characteristics…

  • LT4294 Does not switch to Auxiliary input with TP-Link PSE.

    Hi Engineer Zone Team

    We are currently evaluating the LT4294 PD interface controller.
    Please refer the attached schematic sheet titled “LT4294_PoE_Aux.pdf”.
    Note only the essential circuitry is shown for clarity.

    The intended maximum power required…

  • LT4294

         Hello! Please explain to me how the resistance in the upper arm is 174k, in the lower arm 52.3 K on the example of the DC2583A debugging Board circuit.

  • lt4294 behavior with passive POE adaptor

    Hello,

    What behavior to expect when connecting lt4294 with the passive POE adaptor(48V)? I'm assuming passive POE is the only power supply, so there will be no negotiation between the POE adaptor and the LT4294. Will the voltage pass through the N-CH FET…

  • LT4294 application issue

    Hi ADIexpert

    I have two questions for the LT4294 application

    1. May I know how long does it usually take for the handshaking from detection to power up between a PSE and PD?

    If I connect a adaptor (use the Aux pin function) and a PSE to a LT4294 PD device…

  • LT4294/95 & LTC4291-1/92 Demo Board Pre-test Report

    Dear All:

    I need the following demo board for IEEE 802.3bt protocols and electrical characteristics pre test report. Can you give us a reference??

    LT4295 Demo Board: P/N: DC2584A-A :https://www.analog.com/en/design-center/evaluation-hardware-and-software…

  • RE: LTSpice model for LT4293

    Hi teja123,

    The model for LT4294 can be used. The only difference between the LT4293 and LT4294 is the /T2P pin signaling when connected to an LTPoE++ PSE.

  • Questions regarding the PoE PD controllers in general.

    Hi Engineer Zone Team

    I have a few questions regarding the PoE PD controllers in general although my application intends to use the LT4294.

    Question 1. – Where does the PD controller receive power during the detection process.

    In the PD controllers…