I need some characteristics about ADRF6755 for the thermal design,
just like the power dissipation and Junction-Case Thermal Resistance,
Can anybody help me?
Thanks very much!
Power dissipation numbers are in the datasheet. Nominal current is 380mA at 5V = 1.9W. You should calculate for maximum though which is 420mA x 5.25V = 2.2W.
Junction temperature is harder to calculate as it depends on a number of factors such as environment, PCB stack-up and layout. See diagram below.
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