• State TI Thinks Resolved
  • Locked Locked
  • Replies 4 replies
  • Answers 1 answer
  • Subscribers 33 subscribers
  • Views 2160 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TPD4E1U06: Ethernet, TVS, POE

LP Kim
Intellectual 510 points
Part Number: TPD4E1U06

Dear Members 

Because of filed issue, I am searching the adptive TVS Diode instead of TPD4EU06.

My Product doesn't support POE related to ethernet. But some other user connected product to POE and complained the ethernet communication error. 

TPD4E1U06 DCKR was damaged but operated normally after changing the new TPD4E1U06DCKR. 

Q1) Please recommend the new protection device to use without problem regardless of POE or Not POE Port. 

Q2) Although the idea isn't good , Can I moved the position of TPD4E1U06  

  • 0
    TI__Genius 12410 points

    Hello,

    Are you putting the device on the primary or secondary side of the transformer?

    Do you know that those lines are not going higher than 5V? The VRWM of the device is 5V

  • 0 in reply to Cameron Phillips
    Intellectual 510 points

    Hello

    I putted the protection device on the primary side of the transformer. 

    Do you know that those lines are not going higher than 5V? The VRWM of the device is 5V

    -> Yes, I know 

    When the our product was connected to POE port , the TPD4E1U was damaged.

    Althought our product can't support POE , i think that the ethernet communcaiton is good regardless POE or NO POE Port.   

  • 0 in reply to Cameron Phillips
    Intellectual 510 points

    Hello

    I putted the protection device on the primary side of the transformer. 

    Do you know that those lines are not going higher than 5V? The VRWM of the device is 5V

    -> Yes, I know 

    When the our product was connected to POE port , the TPD4E1U was damaged.

    Althought our product can't support POE , i think that the ethernet communcaiton is good regardless POE or NO POE Port.   

  • 0 in reply to LP Kim
    TI__Genius 12410 points

    With POE the common mode voltage with respect to ground is ~50V. Since you have the device grounded on the side that sees the POE voltage it will surely be damaged.

    I would recommend moving the device to the CPU side of the transformer.