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Texas Instruments UCC28060EVM Output Ripple Voltage at Full Load, VOUT Ripple, POUT = 300 W

Models: UCC28060EVM

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Typical Performance Data

6.1Output Ripple Voltage at Full Load

Figure 8 illustrates the output ripple voltage.

Figure 8. VOUT Ripple, POUT = 300 W

6.2Input Ripple Current Cancellation

Figure 9 through Figure 14 show the input current (M1= IL1 + IL2), Inductor Ripple Current (IL1, IL2) versus rectified line voltage. From these graphs, it can be observed that interleaving reduces the magnitude of input ripple current caused by the inductor ripple current.

Figure 9. Inductor and Input Ripple Current at	Figure 10. Inductor and Input Ripple Current
85 VRMS at Peak of Line Voltage	at 85 VRMS Input at Half the Line Voltage

SLUU280B–May 2007–Revised July 2008

UCC28060EVM 300-W Interleaved PFC Pre-Regulator

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Texas Instruments UCC28060EVM specifications Output Ripple Voltage at Full Load, Input Ripple Current Cancellation

Contents

2 Thermal Requirements 3 Electrical CharacteristicsTable 1. UCC28060EVM Electrical Specifications 1 DescriptionFigure 1. Interleaved PFC Power Stage 4 SchematicsSubmit Documentation Feedback Figure 2. Controller CircuitrySchematics UCC28060EVM 300-W Interleaved PFC Pre-RegulatorFigure 3. Test Setup 5 Test Setup and Power-Up/Power-Down Instructions∙ Connect an isolation transformer between the source and unit 6 Typical Performance Data Figure 5. Efficiency at 115 VRMS, With and Without Phase ManagementFigure 4. Efficiency at 85VRMS and 265VRMS UCC28060EVM 300-W Interleaved PFC Pre-Regulator Figure 6. Efficiency at 230 VRMS, With and Without Phase ManagementFigure 7. Current Harmonics Typical Performance DataFigure 9. Inductor and Input Ripple Current at 6.2 Input Ripple Current Cancellation6.1 Output Ripple Voltage at Full Load Figure 8. VOUT Ripple, POUT = 300 Wat 265 V RMS Input at Half Peak Line Voltage Figure 11. Inductor and Input Ripple CurrentFigure 12. Inductor and Input Ripple Current at 265 V RMS Input at Peak Line VoltageFigure 16. Start-Up at V IN = 265 V RMS, P OUT = 6.3 Startup Characteristics6.4 Brownout Protection Figure 15. Start-Up at V IN = 85 V RMS, P OUT =Figure 19. Line Transient, POUT = 300W 6.5 Line TransientUCC28060EVM 300-W Interleaved PFC Pre-Regulator 7 Reference Design Assembly DrawingFigure 20. Top Layer Assembly Figure 21. Bottom Layer Copper Reference Design Assembly DrawingList of Materials Figure 22. Bottom Layer Assembly8 List of Materials Table 2. List of MaterialsSubmit Documentation Feedback Table 2. List of Materials continuedList of Materials UCC28060EVM 300-W Interleaved PFC Pre-RegulatorFCC Warning EVALUATION BOARD/KIT IMPORTANT NOTICEEVM WARNINGS AND RESTRICTIONS dataconverter.ti.com IMPORTANT NOTICEpower.ti.com amplifier.ti.com

6.1Output Ripple Voltage at Full Load

Figure 8. VOUT Ripple, POUT = 300 W

6.2Input Ripple Current Cancellation

Figure 9. Inductor and Input Ripple Current at

Figure 10. Inductor and Input Ripple Current

85 VRMS at Peak of Line Voltage

at 85 VRMS Input at Half the Line Voltage