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Short to Power Protection for ADV7180 and ADV7393

Question asked by SGauche on Feb 1, 2012
Latest reply on Feb 8, 2012 by GuenterL



I am working on a project used inside a vehicle.  The video signals for the input and output of the ADV7393 and ADV7180 are run in cables that also run power to other parts of the system.  The voltage is nominally 28V but can experience 100V load dumps.  There is a possibility that the cable may break and the video signal could short to 28V.  I have been trying to come up with a way to protect the video inputs and outputs but have not found a good solution yet.  AC coupling will be large, expensive components. Is there another solution?