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Honored Contributor
Honored ContributorArria V FPGA overcurrent
Dear All, we have developed an electronic board using an ARRIA V 5AGXBB1D4F40C5 and we followed the requirements for the sequence of the power supplies. we have an exte...
Altera_ForumHonored Contributor
Honored Contributor --- Quote Start --- Hi Kronic, The Vref absolute max rating is -0.5V, so you were right in the middle of a "no man's land", on the edge of permanent damage frontier...I would say, you have 50% chance your FPGA has survived. Was it a transient or a permanent voltage ? --- Quote End --- Hi Genoli, thank you for your help. about the Vref voltage, unfortunately, we didn't find this absolute maximum rating in the documentation (in contrary to other voltages/pins)... if you have the reference document and the page where you found this information, I would be greatly interested. maybe we sought in the wrong documents... about your question, it was a permanent voltage (worst case I guess). in fact it was a part of the output voltage of an amplifier which goes to saturation (a design issue that we have to fix for future releases).
