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Altera_Forum's avatar
Altera_Forum
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16 years ago

Maximum power dissipation

Hello, I am designing a Cyclone III EP3C25 and/or EP3C40 prototyping board. Since the main purpose is for design development, I would like to remain as flexible in the power requirements as pos...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

Thanks again for your help.

However, when I put the numbers in, I get about 1.5 to 1.6W rather than 3-4W.

e.g.: (80 (degrees max junction temp)-50 (max ambient temp))/20 (thermal resistance from dspkg.pdf) = 1.5W

I get about the same result if I use 125 degree max junction temp and 80 degrees max ambient temp

Is there something that I am doing wrong? What values were you using?

Dave Rector

*:^)