Because of the Thanksgiving holiday in the U.S., TI E2E™ design support forum responses may be delayed from November 25 through December 2. Thank you for your patience.

  • State Resolved
  • Locked Locked
  • Replies 5 replies
  • Subscribers 15 subscribers
  • Views 548 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.

ISO1042-Q1: Can ISO1042-Q1 replace the combination of SN65HVD1040 and ISO7742DWR?

andy lee1
Prodigy 180 points
Part Number: ISO1042-Q1
Other Parts Discussed in Thread: SN65HVD1040, ISO1042

Hello,

Can ISO1042-Q1 replace the combination of SN65HVD1040 and ISO7742DWR?

Will this replacement cause any problem?

Or what are the benefits of using ISO1042-Q1? (A detailed comparison will be good)

Thanks a lot for the replying!

LEE

  • 0
    TI__Guru 54155 points

    Hi Lee,

    ISO1042-Q1 is our latest isolated CAN transceiver and hence has the best specifications incorporated. ISO1042 can certainly be used in place of SN65HVD1040 and ISO77742. Please allow me to come back to you with a comparison data between ISO1042 & SN65HVD1040. Thanks.

    Regards,
    Koteshwar Rao

  • 0 in reply to Koteshwar Rao
    Prodigy 180 points

    Hi Koteshwar,

    Except the higher data rate, reinforced surge protection and the reduction of an ISO IC (more space, lower price), does it have other advantages of using ISO1042?

    Thanks for your replying!

    LEE

  • 0 in reply to andy lee1
    TI__Expert 6195 points

    Hi Lee, 

    You have highlighted the main benefits. It also has:

    • A higher standoff voltage range (+/-70V instead of -27V/+40V).
    • Larger common mode range (+/-30V instead of +/-12V)
    • The integration also makes it easier to ensure that your system meets the CAN timing specs. 

    I did want to point out that unlike the SN65HVD1040, the ISO1042 does not have wakeup / standby functionality or the split rail. 

    Best regards, 

    Dan

  • 0 in reply to Dan Kisling
    Prodigy 180 points

    Hi Dan:

    The data rate of ISO1042 is said can be designed up to 5-Mbps from datasheet, and I would like to ask how to design the data rate? By designing the ICC1?

    Thank you very much!

    LEE

  • 0 in reply to andy lee1
    TI__Expert 6195 points

    Hi Lee, 

    There is nothing special that has to be configured to get the ISO1042 to work at 5Mbps. If you give a 5Mbps signal on TX the CAN bus will follow. Icc1 and Icc2 should be designed to handle worst case (bus dominant) for whatever Vcc1 you use. 

    Best regards, 

    Dan