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

Models: UCC38500EVM

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DM38500 Board Layouts

Board layout examples of the DM38500 EVM PCB are shown in the following illustrations. They are not to scale and appear here only as a reference.

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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 J Peak Current Mode Control in Second Stage J Programmable Oscillator1.3.2 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 DistortionV IN = 175 TotalReference ChapterPage Topic2.1 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