• 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…

  • 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…

  • RE: PoE Injector Port Power

    The LTC4291 uses SRAM and not flash.

    LTC4291 firmware is field-upgradable by downloading and executing firmware images. Firmware images must be re-downloaded after each VDD power cycle, but will remain valid during other reset and VEE power events.

    The…

  • 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 …

  • 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…

  • RE: ltc4291 vs 4291-1

    The LTC4291-1/LTC4292 chipset comes preloaded (in ROM) with version 1.6 firmware. Firmware version 1.6 is fully qualified as IEEE compliant.  When using the LTC4291-1 with the default firmware no code download is required and IEEE compliant operation can…

  • RE: About LTC4291

    In the future, please type your questions in the forum to allow the website to perform the language translation.

    I believe you are asking about requiring a host controller with the LTC4291 and auto mode operation.  For the LTC4291, a code download must…

  • LT4295 & LTC4291-1/92 EVM pre-test report AF/AT/BT

    Hi Sir,

    Could you please share LT4295 & LTC4291-1/92 EVM pre-test report for AF/AT/BT ? 

    About BT standard, We'd like know that, the testing/verification method ? if use LT4295 or LTC4291-1/92 

    Please kindly help&advise it.

    thanks!

  • LTC4291-1/LTC4292 doesn't get the output power

    Hi ,

    My question seems LTC4291-1 doesn't work well.

    So I check the LTC4291-1 whether it is fail or ok by I2C read back. 

    I have tried to read the register by MCU I2C ,but it shows I2C not ack.(Please see the attached picture)

    I have tried auto pin…

  • RE: IEEE 802.3bt Backward Compatibility with market in general

    Yes the 802.3bt PSE & PD. LTC4291/LTC4292 and LT4321.