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SN65HVD1781: Differences with SN65HVD1781A-Q1?

Tony Heglas
Prodigy 180 points
Part Number: SN65HVD1781

Hello, 

Got two short questions above the devices in the title:  Beyond the automotive -Q1 rating and slightly different operating temperature & ESD ratings, are there any functional differences between these two devices?

Also to clarify, the -A variant of the -Q1 device is functionally identical to the non-A, -Q1 device? (-A version is a direct upgrade/replacement?)

From my understanding & reading through the datasheets, there shouldn't be any issue using the SN65HVD1781A-Q1 as a drop-in replacement for the non-Q1 version (SOIC-8 Package)

Thanks!

  • +1
    TI__Mastermind 46607 points

    Hi Tony,

    For you first question: Not beyond the points of difference you noted - (some ESD/temperature differences and the Q1 declaration) 

    For you second question: Yes the -A/-Q1 is functionally identical. The A Version does have functional safety documentation linked for the device however (it doesn't really change functionality it just adds some more documentation) 

    You should be able to drop in SN65HVD1781A-Q1 for the non-Q1 version - its essentially the same part but with a more strict qual process due to the Q1 rating.

    If you have any other questions please let me know!

    Best,

    Parker Dodson

  • 0 in reply to Parker Dodson
    TI__Prodigy 180 points

    Parker, 

    That answers my question perfectly.  

    Thanks!