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Using Thermal Calculation Tools for Analog Components

 

This document provides general guidance on the use of tools and calculations for thermal estimates of component operating temperatures for analog devices. Of particular focus are components with direct thermal paths to the PCB, which is common for components which need a low thermal resistance to manage the dissipated power. This document provides practical considerations for estimation of operating temperatures while still in the design stages of the system. This document also specifically includes technical details for the PCB Thermal Calculator located at: www.ti.com/pcbthermalcalc. All device operating temperatures should be confirmed with measurements to ensure the maximum operating specs are met.