• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 33 subscribers
  • Views 489 views
  • Users 0 members are here
Support feedback
Options
Options
Related

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.

SN55LVDS31-SP: Failure effect on LVDS input/outputs when supply exceeds absolute rating

Mollet Dominique
Prodigy 20 points
Part Number: SN55LVDS31-SP
Other Parts Discussed in Thread: SN55LVDS32-SP

In our application the SN55LVDS31-SP and SN55LVDS32-SP are supplied with 3,3V. The absolute maximum rating is 4,0V.

Assuming a failure case were the supply exceeds the maxium rating (i.e 5,5V) what will be the failure effect on the LVDS inputs/outputs?

  • 0
    TI__Guru 62930 points

    Mollet,

    An informal experimental analysis was performed on the LVDS31 to help answer this question.

    Please see this report.

    SN55LVDS31-SP_VCC_Fault_Experiment.pdf

    The LVDS32 uses same process, and it is expected that it would similarly not be subjected to immediate failure from exposure to VCC exceeding absolute max ratings.  It is not expected that catastrophic shorts to power or ground would occur to either inputs or outputs based on reasonably short duration faults on VCC.

    If this answers your question, please click "Verify it as the answer"
    Regards,
    Wade