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Author Topic: LED as a zener, temperature coeficient  (Read 98 times)

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Offline Seekonk

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LED as a zener, temperature coeficient
« on: Yesterday at 09:35:22 pm »
I've used LED for years as a convenient way to offset voltage and provide status at the same time. A while back there a really good thread about just how stable they were with temperature.  I've searched and searched a variety of terms and have been unable to locate it. Did anyone bookmark this?  I'm looking to compare the TC of LED vs a standard diode.
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Offline David Hess

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Re: LED as a zener, temperature coeficient
« Reply #1 on: Yesterday at 09:53:33 pm »
Somewhere I have seen a table of -millivolt/C temperature coefficients for different LED processes.  Some of them are a good match for the -2 millivolt/C of a forward biased silicon diode or base-emitter junction making them a convenient way to build temperature compensated current sources.
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Offline MasterT

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Re: LED as a zener, temperature coeficient
« Reply #2 on: Yesterday at 10:15:51 pm »
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