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pcrider · 08-28-2008, 08:41 AM

Tell you what, Sourcing a 30 volt zener isn't terribly bad, it adds a component, but I cannot believe that there isn't a common 5 volt voltage regulator in existence designed for automotive use. Can somebody mouse around and see if the 7805 should be obsolete for automotive use and replaced with something better?[/QUOTE]

The LM2940.. was designed by National Semiconductor for auto applications with attendent power interruptions and spiking and is available with a 5v output. I'm not sure which temp. spec you're interested in, but in general the T0-220 variety runs just under $2 from DIGI-KEY.

I've watched the development of this project and am ipressed with the progress. Keep up the good work!

G. Taylor
Honda PC800 50mpg

08-28-2008, 08:41 AM	#24 (permalink)
pcrider EcoModding Lurker Join Date: Apr 2008 Location: rockaway, NJ Posts: 1 Thanks: 0 Thanked 0 Times in 0 Posts	7805 Automotive Replacement Tell you what, Sourcing a 30 volt zener isn't terribly bad, it adds a component, but I cannot believe that there isn't a common 5 volt voltage regulator in existence designed for automotive use. Can somebody mouse around and see if the 7805 should be obsolete for automotive use and replaced with something better?[/QUOTE] The LM2940.. was designed by National Semiconductor for auto applications with attendent power interruptions and spiking and is available with a 5v output. I'm not sure which temp. spec you're interested in, but in general the T0-220 variety runs just under $2 from DIGI-KEY. I've watched the development of this project and am ipressed with the progress. Keep up the good work! G. Taylor Honda PC800 50mpg