Texas Instruments UCC38500EVM manual Operating Guidelines, Load Connections, Applying Input Power

Contents Using the UCC38500EVM User’s GuideSLUU068C Power Management Products Using the UCC38500User’s Guide FebruaryIMPORTANT NOTICE EVM IMPORTANT NOTICE EVM WARNINGS AND RESTRICTIONS 1−1. DM38500 Evaluation Module Application Schematic Contents1.3.3 Step 3. Evaluating the Demonstration’s Boards Performance 1.3.4 Additional Information 1.4 DM38500 EVM PerformanceChapter General InformationPage TopicJ Controls Boost Preregulator to Near-unity Power Factor 1.1 FeaturesJ Accurate Power Limiting J Improved Feedforward Line Regulation 1.2 Description1.3 Operating Guidelines 1.3.2 Step 2. Applying Input Power1.3.1 Step 1. Load Connections 1.3.3 Step 3. Evaluating the Demonstration’s Boards PerformanceHigh-Voltage component. See High-Temperature componentSee EVM Warnings EVM Warnings andFigure 1−3. DM38500 Power Factor 1.4 DM38500 EVM PerformanceFigure 1−2. DM38500 EVM Efficiency Distortion Figure 1−4. DM38500 Total Harmonic DistortionTotal V IN = 265Reference DM38500 EVM Part DescriptionsDM38500 Board Layouts Table 2−1. DM38500 Part Descriptions 2.1 DM38500 EVM Part Descriptions3 Capacitor C38 is located at reference designator R38 on the PCB 2 Unless otherwise specified, all resistors have a tolerance of ±1%Description Value/Type Number2.2 DM38500 Board Layouts Figure 2−1. DM38500 EVM PC Board Top Assembly