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Texas Instruments UCC28600 User Manual
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Texas Instruments UCC28600 User Manual

Texas Instruments UCC28600 User Manual

120-w evaluation module
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UCC28600 120-W Evaluation Module
User's Guide
October 2006
Power Supply MAN
SLUU256A

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Summary of Contents for Texas Instruments UCC28600

  • Page 1 UCC28600 120-W Evaluation Module User's Guide October 2006 Power Supply MAN SLUU256A...
  • Page 2 UCC28600 120-W Evaluation Module User's Guide Literature Number: SLUU256A August 2006 – Revised October 2006...
  • Page 3 STATUS pin is used to disable the PFC controller when the converter has entered standby. This user’s guide provides the schematic, component list, assembly drawing for a single-sided PCB application, artwork, and test set up necessary to evaluate the UCC28600 in a typical off-line converter application.
  • Page 4 • Programmable over voltage protection • Internal over temperature protection • Less than 500-mW input power during standby • Programmable soft start • PFC disable using the STATUS pin of the UCC28600 • Regulation down to zero output current • Single-sided board layout CAUTION High voltage levels are present on the evaluation module whenever it is energized.
  • Page 5 = 6.2 A 82.7% = 230 V = 6.2 A 86.4% No load power = 115 V = 0 A consumption = 230 V = 0 A SLUU256A – August 2006 – Revised October 2006 UCC28600 120-W Evaluation Module Submit Documentation Feedback...
  • Page 6 The bias to the UCC28051 controller is provided by the auxiliary winding of the quasi-resonant flyback inductor and controlled by the STATUS output of the UCC28600 controller. During light load operation, the bias to the PFC controller is removed, enabling the converter to operate at high efficiencies.
  • Page 7 Schematic Figure 1. PFC Portion of the UCC28600EVM SLUU256A – August 2006 – Revised October 2006 UCC28600 120-W Evaluation Module Submit Documentation Feedback...
  • Page 8 Schematic Figure 2. Quasi-Resonant Flyback Portion of the UCC28600EVM UCC28600 120-W Evaluation Module SLUU256A – August 2006 – Revised October 2006 Submit Documentation Feedback...

  • Page 9: Evm Test Setup

    V HI V LO A H I A LO A EXT − Ripple Scope Figure 3. Recommended HPA126 EVM Test Configuration for Operation with a Load. SLUU256A – August 2006 – Revised October 2006 UCC28600 120-W Evaluation Module Submit Documentation Feedback...
  • Page 10 − − − − V HI V LO A LO A EXT A HI − Figure 4. Equipment Set Up for HPA126 Evaluation During No-Load. UCC28600 120-W Evaluation Module SLUU256A – August 2006 – Revised October 2006 Submit Documentation Feedback...

  • Page 11: Power Meter

    Because this evaluation module is not enclosed, allowing probing of circuit nodes, a small fan capable of 200 LFM to 400 LFM should be used to reduce component temperatures when operating at or above 50% maximum rated load current. SLUU256A – August 2006 – Revised October 2006 UCC28600 120-W Evaluation Module Submit Documentation Feedback...
  • Page 12 Increase load from 0 A up to 6.2 A. 3. Power Down a. Turn off ac source. b. Discharge the output capacitor bank. c. Turn off the load. UCC28600 120-W Evaluation Module SLUU256A – August 2006 – Revised October 2006 Submit Documentation Feedback...
  • Page 13 Change, V = 230 V 200 mV/div. 200 mV/div. t − Time − 2.0 ms/div. t − Time − 2.0 ms/div. Figure 7. Figure 8. SLUU256A – August 2006 – Revised October 2006 UCC28600 120-W Evaluation Module Submit Documentation Feedback...
  • Page 14 No Load Output Voltage Ripple, V = 230 V 50 mV/div. 20 mV/div. t − Time − 5.0 µs/div. t − Time − 5.0 ms/div. Figure 11. Figure 12. UCC28600 120-W Evaluation Module SLUU256A – August 2006 – Revised October 2006 Submit Documentation Feedback...
  • Page 15 CH3: 1.0 V/div. CH4:1.0 V/div. CH4: 500 mV/div. CH3: 5.0 V/div. t − Time − 2.5 µs/div. t − Time − 200 µs/div. Figure 15. Figure 16. SLUU256A – August 2006 – Revised October 2006 UCC28600 120-W Evaluation Module Submit Documentation Feedback...
  • Page 16 −20 −80 1E + 02 1E + 03 1E + 04 f − Frequency − Hz − Output Current − A Figure 19. Figure 20. UCC28600 120-W Evaluation Module SLUU256A – August 2006 – Revised October 2006 Submit Documentation Feedback...
  • Page 17 UCC28600EVM Performance Data and Characteristic Curves EFFICIENCY OUTPUT LOAD = 85 V = 115 V = 230 V = 265 V − Output Load− A Figure 21. SLUU256A – August 2006 – Revised October 2006 UCC28600 120-W Evaluation Module Submit Documentation Feedback...
  • Page 18 EVM Assembly Drawing and Layout Figures 22 and 23 show the layout of the single-sided printed circuit board used for the evaluation module. Figure 22. Top Layer of EVM UCC28600 120-W Evaluation Module SLUU256A – August 2006 – Revised October 2006 Submit Documentation Feedback...
  • Page 19 EVM Assembly Drawing and Layout Figure 23. Bottom Layer of EVM SLUU256A – August 2006 – Revised October 2006 UCC28600 120-W Evaluation Module Submit Documentation Feedback...

  • Page 20: List Of Materials

    Diode, ultra fast rectifier, 1 A, 100 V, SMA ON Semiconductor MURA110T3 These assemblies are ESD sensitive, ESD precautions shall be observed. These assemblies must comply with workmanship standards IPC-A-610 Class 2. UCC28600 120-W Evaluation Module SLUU256A – August 2006 – Revised October 2006 Submit Documentation Feedback...
  • Page 21 Resistor, wirewound, 0.13 Ω, 3 W, ±1%, axial, 0.600 X Huntington Electric ALSR-3-.13-1% 0.250 inch Resistor, chip, 499 Ω, 1/10 W, ±1%, 0603 R34, R35 Yageo America RC0603FR-07499RL SLUU256A – August 2006 – Revised October 2006 UCC28600 120-W Evaluation Module Submit Documentation Feedback...
  • Page 22 IC, Precision Adjustable Shunt Regulator, SOT23-3 Texas Instrumants TL1431QDBZ** References 1. UCC28600 8-Pin Quasi-Resonant Flyback Green Mode Controller, Datasheet, SLUS646B 2. Standby and Low Power Measurements, VOLTECHNOTES, VPN 104-054/1, http://www.voltech.com/Downloads/PMAppNotes/Low%20Power%20Standby.pdf UCC28600 120-W Evaluation Module SLUU256A – August 2006 – Revised October 2006...
  • Page 23 TI product or service and is an unfair and deceptive business practice. TI is not responsible or liable for any such statements. Following are URLs where you can obtain information on other Texas Instruments products and application solutions:...

  • Page 24: Texas Instruments

    Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Texas Instruments UCC28600EVM...