Texas Instruments UCC38500EVM 2.2 DM38500 Board Layouts, 1. DM38500 EVM PC Board Top Assembly

Contents User’s Guide Using the UCC38500EVMSLUU068C Using the UCC38500 Power Management ProductsUser’s Guide FebruaryIMPORTANT NOTICE EVM IMPORTANT NOTICE EVM WARNINGS AND RESTRICTIONS Contents 1−1. DM38500 Evaluation Module Application Schematic1.3.3 Step 3. Evaluating the Demonstration’s Boards Performance 1.3.4 Additional Information 1.4 DM38500 EVM PerformanceGeneral Information ChapterPage Topic1.1 Features J Controls Boost Preregulator to Near-unity Power FactorJ Accurate Power Limiting J Improved Feedforward Line Regulation 1.2 Description1.3.2 Step 2. Applying Input Power 1.3 Operating Guidelines1.3.1 Step 1. Load Connections 1.3.3 Step 3. Evaluating the Demonstration’s Boards PerformanceHigh-Temperature component High-Voltage component. SeeSee EVM Warnings EVM Warnings and1.4 DM38500 EVM Performance Figure 1−3. DM38500 Power FactorFigure 1−2. DM38500 EVM Efficiency Figure 1−4. DM38500 Total Harmonic Distortion DistortionTotal V IN = 265DM38500 EVM Part Descriptions ReferenceDM38500 Board Layouts 2.1 DM38500 EVM Part Descriptions Table 2−1. DM38500 Part Descriptions2 Unless otherwise specified, all resistors have a tolerance of ±1% 3 Capacitor C38 is located at reference designator R38 on the PCBDescription Value/Type NumberFigure 2−1. DM38500 EVM PC Board Top Assembly 2.2 DM38500 Board Layouts