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ADM3053 and associated power dissapation

Question asked by gdownes on Dec 4, 2014
Latest reply on Dec 15, 2014 by ConalW



I am wondering if there is an error in the ADM3053 datasheet with regards to the power dissapation for this part.


Rev. B | Page 3 of 20 of the datasheet shows the following values for 1mbps operation:


That works out to 700.28mW of power (from VCC=5V and VIO=3.3V).


If you continue reading to page 8, you see this:




650mW of power when fully loaded.  Wait, what?  What conditions gave us 650mW of power?


Is there any more thermal information for this part?  The datasheet seems pretty vague with some details.