• State TI Thinks Resolved
  • Locked Locked
  • Replies 3 replies
  • Answers 1 answer
  • Subscribers 34 subscribers
  • Views 314 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.

THVD1450: A and B channel continuous shorting

Satish Ghariya
Intellectual 390 points
Part Number: THVD1450


Hi,

I am using THVD1450 in half duplex mode.

In case of both RE and DE are enabled (But there is no communication going on) and if l B channel is grounded (PCB common ground) and there is no signal on A.

What could be the possibility. Is there any chance of damage to IC. Amy violation of maximum operating condition. or something else.

Thanks

  • 0
    TI__Mastermind 25705 points

    Hi

    In THVD1450, each A and B pin has its own driver. In general, they work separately. Could you give more information about what you've seen? How's your setup, like supply, the state of control pins (like D), load (any resistors on the bus)? Do you see this behavior on one device or multiple ones? If you ground A, would B have no response as well? When did this happen, during operating, after power on, etc?

    Regards,

    Hao

  • 0 in reply to Hao L
    Intellectual 390 points

    Hi Hao,

    I my question I am asking about the possibility I mean what all possible issue can be there if I shorted any of the channel to ground.

    Is any possibility of damage of IC, Hange issue or something else. let me know.

    Thanks

  • 0 in reply to Satish Ghariya
    TI__Mastermind 25705 points
    Hi,

    In the case of shorting any bus pins to ground, there should be no damage to IC. These two pins can stand -18V to +18V individually and have internal short current limit.

    Please let me know if you have other concerns.
    Regards,
    Hao