• State TI Thinks Resolved
  • Locked Locked
  • Replies 3 replies
  • Answers 1 answer
  • Subscribers 16 subscribers
  • Views 1220 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.

ISO1050: cascading isolated can transceiver

Vincent Daanen
Prodigy 30 points
Part Number: ISO1050

Hi,

is it possible to build a CAN bus isolator by cascading 2 (or more) iso1050 components ?

Will something like this work ?

My first attempt failed

Vince

  • 0
    TI__Intellectual 2855 points
    Hi Vince,

    This Configuration may cause a raise around condition, let me check in detail and get back to you on this.
    Meanwhile can you please share application details and isolation requirement? also can you please briefly explain what you tried and what are your observations.

    Regards
    Tejas
  • 0 in reply to Tejas Hommaradi
    Prodigy 30 points

    Hi,

    Isolatation requirements is 4000V (Medical device).

    I simply tried the schematics drawn in the first post and I observed a sort of signal-looping.

    I discussed with an old skilled electronic engineer and he showed with this could not work.It seems I need at least of MCU (or something like that) between hte 2 isolators..

    Can you confirm ?

    Best regards

    Vincent

  • 0 in reply to Vincent Daanen
    TI__Intellectual 2855 points

    Hi Vincent,

    Yes thats correct, you need at least a MCU between 2 isolators for this to work and avoid signal-looping.

    On other hand, you may look at isolating the signal between MCU and CAN bus as below,

    please let us know if you have any further question.

    Thanks,

    Regards

    Tejas