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I spec’d in LM317MDCYR on a design I am working on. The temperature range of the product is -35°C to +60°C. The link below is for the front page of the part.
http://www.ti.com/product/lm317M
The temperature rating for this part is called out as -40°C to 125°C under the "Parametric" and also the "sample and buy" sections, which is what I need for my application. When selecting the part this is what I used.
However in the Data Sheet dated July 2006 it calls it out as 0°C to 125°C. You need to order the part with a “Q” suffix to get a automotive temp. Datasheet link below:
http://www.ti.com/lit/ds/symlink/lm317m.pdf
But confusion comes in again when you go to Addendum-Page 1 of the datasheet. and the part is called out at the larger temp range. The addendum is dated for 29-Jan-2014.
I have tested the part down to -35°C many times and the part functions correctly.
So is the discrepancy of temps the case of the data sheet was not updated? Just trying to see if I need to spec in another part. Or what I have will work correctly? I wasn't sure if there was a consolidation of parts and only the higher temp range is offered?
