SLUS930D April 2011 – November 2016 TPS40400
Power dissipation ratings determine the thermal limitations of any power supply design. In general, power dissipation in the power MOSFETs and output inductor will limit the safe operating area of the design. Consult the manufacturer data sheets for these components to ensure that power dissipation ratings are met with sufficient margin. Additionally, Table 70 shows the power dissipation ratings of the TPS40400 controller device itself.
|AIRFLOW||TA = 25°C
|TA = 85°C
|31.1||Natural Convection||3.21 W||1.29 W|
|25.2||200 LFM||3.96 W||1.58 W|
|23||400 LFM||4.36 W||1.74 W|