Texas Instruments manual User’s Guide, Using the UCC38500EVM, SLUU068C

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User’s Guide

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Contents User’s Guide Using the UCC38500EVMSLUU068C 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 and1.4 DM38500 EVM Performance Figure 1−3. DM38500 Power FactorFigure 1−2. DM38500 EVM Efficiency Distortion Figure 1−4. DM38500 Total Harmonic DistortionTotal V IN = 265DM38500 EVM Part Descriptions ReferenceDM38500 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