Texas Instruments UCC38500EVM manual 1.4 DM38500 EVM Performance, 2. DM38500 EVM Efficiency

Contents SLUU068C Using the UCC38500EVMUser’s Guide February Using the UCC38500Power Management Products User’s GuideIMPORTANT NOTICE EVM IMPORTANT NOTICE EVM WARNINGS AND RESTRICTIONS 1.3.4 Additional Information 1.4 DM38500 EVM Performance Contents1−1. DM38500 Evaluation Module Application Schematic 1.3.3 Step 3. Evaluating the Demonstration’s Boards PerformanceTopic General InformationChapter Page1.2 Description 1.1 FeaturesJ Controls Boost Preregulator to Near-unity Power Factor J Accurate Power Limiting J Improved Feedforward Line Regulation1.3.3 Step 3. Evaluating the Demonstration’s Boards Performance 1.3.2 Step 2. Applying Input Power1.3 Operating Guidelines 1.3.1 Step 1. Load ConnectionsEVM Warnings and High-Temperature componentHigh-Voltage component. See See EVM WarningsFigure 1−2. DM38500 EVM Efficiency Figure 1−3. DM38500 Power Factor1.4 DM38500 EVM Performance V IN = 265 Figure 1−4. DM38500 Total Harmonic DistortionDistortion TotalDM38500 Board Layouts ReferenceDM38500 EVM Part Descriptions Table 2−1. DM38500 Part Descriptions 2.1 DM38500 EVM Part DescriptionsValue/Type Number 2 Unless otherwise specified, all resistors have a tolerance of ±1%3 Capacitor C38 is located at reference designator R38 on the PCB Description2.2 DM38500 Board Layouts Figure 2−1. DM38500 EVM PC Board Top Assembly