Breaking News
Design How-To

Understanding dissipation, thermal resistance, and IC temperature (Part 2 of 2)

NO RATINGS
More Related Links
View Comments: Newest First | Oldest First | Threaded View
Allen10
User Rank
Rookie
re: Understanding dissipation, thermal resistance, and IC temperature (Part 2 of 2)
Allen10   11/2/2007 6:30:25 PM
NO RATINGS
This data, while well intentioned in suspect: Experimental technique: you could certainly have connected Kelvin leads to the test board (if not to the chip directly) and gotten better, more believeable, measurements. Lack of data: the plots of enable current v. Temp are too good. The actual measurements need to be plotted, not just the fitted line. Application: Who has 30x30 mm or more to heat sink a tiny SC70 package? What PCB layout did the designer specify for the specd 240C/W? What about lot-to-lot variation? Finally, I'd like to see the designer of this chip comment on the methods and results.

Radio
NEXT UPCOMING BROADCAST
EE Times Senior Technical Editor Martin Rowe will interview EMC engineer Kenneth Wyatt.
Top Comments of the Week
Like Us on Facebook

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
EE Times on Twitter
EE Times Twitter Feed
Flash Poll