• Semi-automatic mode operation of LTC4291-1 & LTC4291

    Hello,

    I have a question about LTC4291-1 & LTC4292.

    I am checking if the LTC4292 can be connected to the evaluation board (DC2911A) set to Class 8 of the LT4293 to supply power.

    In Auto mode, power was supplied without problems when a Class 8 PD…

  • LTC4291 LTC4291-1 registers

    In LTC4291-1 datasheet there is Note.

    Note 12: See the LTC4291 Software Programming documentation for information on serial bus usage and device configuration and status registers.

    Where should I find these documentation about registers and programming …

  • About the detection method of LTC4291-1 & LTC4292

    Hello

    I am considering the LTC4291-1 & LTC4292 chipsets.


    PD may be detected correctly in auto mode, and PD may be erroneously detected in semi-automatic mode.

    Specifically, it is judged as Class 4 etc. even though Class 8 is connected.

    This can be…

  • LTC4291-1/LTC4292 about power recovery after power cut off

    Hi,

    My customer is considering PoE LTC4291-1 and LTC4292 and I got questions.

    It is assumed that power is supplied to the LTC4291-1 but LTC4992 power is not supplied (cut off) and after that power is recovery.
    In this case, what kind of operation does…

  • LTC4291-1 Datasheet and availabilty

    Hi,

    We are designing a PoE power Management board using DC2685A Evaluation Board.

    We came to know that there are two versions of LTC4291(That requires code download) and LTC4291-1(Not requiring any external firmware).

    we are in need LTC4291-1 's Complete…

  • Questions about the optimal design that can design 8 port 802.3bt Class8 using LTC4291-1 & LTC4292

    Customer wants to develop 8 ports of PSE with LTC4291-1 and LTC4292.

    When configuring 8 ports with 4-Pair (802.3bt Class8-71W), please let the customer know how designing can minimize the price.

    ex) 2* (LTC4291-1 & LTC4292) = 8 port (4 pair) =>…

  • Enable power using LTC4291 -1

    Hi,

    I am using LTC4291-1 & LTC4292 based design. Earlier i was using LTC4291 and i was using LTC4291 GUI application but since LTC4291 needed programming after each power on reset, i went with LTC4291IUF-1#PBF which is pre-programmed. I want to know how…

  • LTC4291-1 & LTC4292 Issue

    Hi 

    We are using LTC4291-1 and LTC4292 in our PSE application. While connecting the the PD through LAN I don't get output. Gate pin stays low always. Below waveform (10x) is the one I'm getting on OUT1A when connecting PD. When PD is not connected…

  • How to test LTC4291-1

    Hi we have designed board based on LTC4292 and LTC4291. Earlier i was using LTC4291 and LTC4291 GUI application but since LTC4291 needed programming after each power on reset, i went with LTC4291IUF-1#PBF which is pre-programmed. I want to know how do…

  • LTC4291-1/LTC4292 Inter-chip Communication Error

    Hello team,

    When LTC4291-1/LTC4292 Inter-chip Communication got an error due to effect of noise, will they be reset ?

    Best Regards,