• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 32 subscribers
  • Views 187 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.

TCAN4550-Q1: Physical layer test of TCAN4550

William Zhang2
Intellectual 835 points
Part Number: TCAN4550-Q1
Other Parts Discussed in Thread: CC2642R-Q1, TCAN4550

Hi team,

Customer is developing a PAAK project based TCAN4550-Q1 and CC2642R-Q1.

TCAN4550 is currently tested for lack of feasibility tests. It is relatively risky to directly connect to the CAN bus of the vehicle. They need our support to complete some feasibility and optimization tests.

1. How to perform the physical layer test of TCAN4550? Is there a complete test tool and method?
Such as CAN conformance test, sampling point, CAN short circuit, CAN supply low voltage and restore normal voltage and other abnormal handling under test conditions.
2. Is there any experience and app note for software debug? For example, what should be done after an error occurs in the register? What configuration should be done after waking up in different ways?

Thanks a lot.

William

  • 0
    TI__Mastermind 48215 points

    Hi William,

    We evaluate the reliability and protection capabilities of our own devices using standardised test procedures such as IEC 61000-4-2 and SAEJ2962-2 so that our customers can know what performance they can expect. Many customers and manufacturers will require or conduct additional testing to make sure that the device performs as required when implemented in a more specific manner or system. While some of these are general enough for us to get approval for from third parties (such as J2962 or Zwickau), it's not possible for us to test every end-use case. 

    The most reliable evaluation of our devices' performance in a particular system is to test the device in the system itself. This allows all of the unique variables and intricacies of the system to be accounted for in the testing. If the end equipment needs to be able to withstand a certain level of ESD stress, the ESD ratings of help determine if it is suitable for the application by representing its performance under regulated conditions. However, to ensure that the system will be able to qualify for similar ratings, it must be tested as a whole. 

    If there is a particular test standard you are interested in evaluating TCAN4550 under, I can help clarify how it was qualified internally and are results from 3rd party test sites (may need to share internally). If you are looking for more general physical layer tests, I would recommend reviewing some of the standards that exist for an idea of what specifications are generally tested and what the procedure for testing them entails. 

    For evaluating the functional safety of our particular device, we do offer functional safety documentation that can help designers best implement this device into their system. 

    Let me know if you have any more questions. 

    Regards,
    Eric Schott