5 VDC supply from PCM?

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Dec 22, 2005 | 12:19 PM

SSpeedracer

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From: In my garage

5 VDC supply from PCM?

I'm in the process of adding several 5VDC pressure transducers (~10mA each) and would like to avoid adding a DC-DC converter if possible. Does anyone know if 5VDC is available from the PCM, and if so is it stable? thanks

Dec 22, 2005 | 01:37 PM

technical

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From: Fat Chance Hotel

I'd avoid tapping power from the PCM - too critical. There should be 5VDC from other components. What about the radio?

Dec 22, 2005 | 02:14 PM

jimmyblue

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From: East Central Florida

There are several 5V reference outputs but I agree
you probably don't want to be adding load to them.

A LM7805K type linear regulator will give you an amp
with adequate heat sinking, dead simple, reasonably
good tolerances and pretty cheap.

http://www.digikey.com/scripts/DkSea...544918&Site=US

http://rocky.digikey.com/WebLib/Texa...0%20Series.pdf

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