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Bidirectional digital isolator for CAN

Tsukui Yusuke
Guru 21930 points

Other Parts Discussed in Thread: ISO1050, ISO1042

Hi,

Customers want to realize the following circuits.
Customer is looking for a solution to isolate and connect two different CAN bus.
Are there any TI device that you recommend?
(ISO1050 is not a corresponding product.)



Best Regards,
Yusuke

  • 0
    TI__Expert 6195 points

    Hi Yusuke,

    Thanks for asking your question on E2E!

    I do not know of any device we have that can do this alone, but I can make some recommendations on how to design such a system.

    Essentially what you need is an isolated CAN repeater. We do have a reference design for this: http://www.ti.com/tool/TIDA-01487

    If the goal is to get Unit 3 and Unit 4 isolated from Unit 1 and Unit 2, there may be another way to accomplish this. Consider the block diagram I have proposed below. This could be achieved by using an isolated CAN transceiver like the ISO1042 or ISO1050. 

    Would either of these solutions work for you?

    Best regards, 

    Dan

  • 0 in reply to Dan Kisling
    TI__Expert 6195 points
    Hi Yusuke,
    I haven't heard from you in a few days. If this answered your question about an isolated CAN network, please feel free to press the this resolved my issue button. If you have any other questions feel free to reply on this thread or open a new one.
    Best regards,
    Dan
  • 0 in reply to Dan Kisling
    Guru 21930 points

    Dan-san,

    I'm sorry for my late reply.
    Thank you for your kind support.
    I have informed the customer the plan you gave me.
    Currently, I am waiting for customer feedback.
    Please wait a little while longer for that reply.

    Best Regards,
    Yusuke