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Subject: Re: Thermal resistance of DIP-8
User-Agent: MT-NewsWatcher/3.1 (PPC)
Date: Sat, 16 Nov 2002 16:37:14 GMT
NNTP-Posting-Date: Sat, 16 Nov 2002 11:37:14 EST
In article <firstname.lastname@example.org>,
Marcin E. Hamerla wrote:
> Does anybody know the value of the DIP-8 package junction-to-case
> thermal resistance?
You may have to measure it yourself. It is a relatively easy thing to do
in the laboratory. But the procedure is too lengthy to explain here. It
essentially involves the measurement of the surface temperature of your
device and the internal temperature and relating it to the power
dissipated. You capture the temperature/voltage characteristic of an
internal diode at a set current. You then use the diode characteristic
to determine internal temperature when your device is operating.
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