• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 32 subscribers
  • Views 65 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

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.

TCAN1051-Q1: Tying Silent to VIO?

Jacob Wyrick
Expert 5975 points
Part Number: TCAN1051-Q1

Hi team,

If I only want my CAN transceiver to listen to the bus, but never transmit, can I tie S to VIO? Do we have a recommended pull-up resistor value?

If we are able to tie S to VIO, would we gain any robustness to noise/EMC by also tying TXD to S and VIO?

Thanks,

Jacob

  • +1
    TI__Guru 65202 points

    Jacob,

    Yes, tying S high will put the transceiver into Silent mode indefinitely, and if that's all that's needed for the application that will work. Using a 1k to 10k resistor will be sufficient.

    Tying TXD high would give a bit more protection against noise just having a stronger pull-up to known state rather than what's internal to the transceiver, which is a fairly weak pull-up in the hundreds of thousands of ohms. 

    Please let me know if you have any other questions.

    Regards,

    Eric Hackett