Texas Instruments UCC38500EVM manual General Information, Chapter, Page, Topic

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Chapter 1

General

Information

This chapter details the Texas Instruments (TI) DM38500 PFC/PWM Combination Controller 100W Power Factor Correction Preregulator Evaluation Module (EVM) SLUU068. It includes a list of EVM features, a brief description of the module illustrated with a pictorial, schematic diagrams, and EVM specifications.

Topic		Page

1.1	Features	. . 1−2
1.2	Description	. . 1−2
1.3	Operating Guidelines	. . 1−3
1.4	DM38500 EVM Performance	. . 1−5

General Information

1-1

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Contents User’s Guide Using the UCC38500EVMSLUU068C 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 Warnings1.4 DM38500 EVM Performance Figure 1−3. DM38500 Power FactorFigure 1−2. DM38500 EVM Efficiency V IN = 265 Figure 1−4. DM38500 Total Harmonic DistortionDistortion TotalDM38500 EVM Part Descriptions ReferenceDM38500 Board Layouts 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