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Related Manuals for Texas Instruments UCC25230EVM-662
Summary of Contents for Texas Instruments UCC25230EVM-662
- Page 1 Using the UCC25230EVM-662 User's Guide Literature Number: SLUU863 February 2012...
- Page 2 Introduction This EVM is used to evaluate bias power supply with UCC25230 used in the UCC28250, based on a secondary-side controlled, half-bridge DC-to-DC converter. The UCC25230EVM-662 is actually a combination of two released EVMs, UCC28250EVM-564 and UCC25230EVM-754. The UCC28250EVM-564 is an EVM of secondary-side controlled symmetrical half-bridge DC-to-DC converter.
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Page 3: Electrical Performance Specifications
Electrical Performance Specifications www.ti.com Electrical Performance Specifications Table 1. UCC25230EVM-662 Electrical Performance Specifications PARAMETER TEST CONDITIONS UNITS Input Characteristics Voltage range Maximum input current = 36 V and I = 30 A No load input current = 72 V Output Characteristics... - Page 4 Schematic www.ti.com Schematic Figure 1. UCC25230EVM-662 Schematic SLUU863 – February 2012 Biased Half-Bridge Converter with UCC28250 Secondary-Side Control for 48-V Telecom Applications Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated...
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Page 5: Test Equipment
Ventilation Fan: 200 LFM minimum compatible. Recommended Test Setup TP10 TP12 TP11 TP13 Figure 2. UCC25230EVM-662 Recommended Test Set Up SLUU863 – February 2012 Biased Half-Bridge Converter with UCC28250 Secondary-Side Control for 48-V Telecom Applications Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... -
Page 6: List Of Test Points
Primary bias, 9 V TP13 Bias_S Secondary bias, 8 V INPUT Input voltage terminals OUTPUT Output voltage terminals SLUU863 – February 2012 Biased Half-Bridge Converter with UCC28250 Secondary-Side Control for 48-V Telecom Applications Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... -
Page 7: Test Procedure
2. Decrease VIN to 0 V. 3. Shut down VIN and the fan. 4. Shut down the load. SLUU863 – February 2012 Biased Half-Bridge Converter with UCC28250 Secondary-Side Control for 48-V Telecom Applications Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... -
Page 8: Performance Data And Typical Characteristic Curves
Performance Data and Typical Characteristic Curves www.ti.com Performance Data and Typical Characteristic Curves Figure 3 through Figure 11 present typical performance curves for UCC25230EVM-662. Efficiency 36.0V 48.0V 72.0V - Amps Figure 3. UCC25230EVM-662 Efficiency Load Regulation 3.350 3.300 3.250 3.200 3.150... - Page 9 -120.00 -50.00 -150.00 10.0 100.0 F - Frequency - kHz Figure 5. UCC25230EVM-662 Feedback Loop Bode Plots = 48 V, I = 15 A) SLUU863 – February 2012 Biased Half-Bridge Converter with UCC28250 Secondary-Side Control for 48-V Telecom Applications Submit Documentation Feedback...
- Page 10 Figure 7. Output Voltage Turn on with Pre bias. = 48 V, I = 0 A, Pre bias = 1.5 V) SLUU863 – February 2012 Biased Half-Bridge Converter with UCC28250 Secondary-Side Control for 48-V Telecom Applications Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated...
- Page 11 Figure 9. Output Voltage Turn On with Pre bias = 48 V, I = 0 A, Pre bias = 0 V) SLUU863 – February 2012 Biased Half-Bridge Converter with UCC28250 Secondary-Side Control for 48-V Telecom Applications Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated...
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Page 12: Output Ripple
Output Ripple Figure 11. Output Ripple = 48 V, I = 15 A, without external capacitance) SLUU863 – February 2012 Biased Half-Bridge Converter with UCC28250 Secondary-Side Control for 48-V Telecom Applications Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... -
Page 13: Evm Assembly Drawing And Pcb Layout
L x W = 4.2 inch x 2.3 inch, PCB material: FR406 or compatible, four layers and 2-ounce copper on each layer. Figure 12. UCC25230EVM-662 Top Layer Assembly Drawing (top view) Figure 13. UCC25230EVM-662 Bottom Assembly Drawing (Bottom view) SLUU863 –... - Page 14 EVM Assembly Drawing and PCB layout www.ti.com Figure 14. UCC25230EVM-662 Top Copper (top view) Figure 15. UCC25230EVM-662 Internal Layer 1 (top view) SLUU863 – February 2012 Biased Half-Bridge Converter with UCC28250 Secondary-Side Control for 48-V Telecom Applications Submit Documentation Feedback...
- Page 15 EVM Assembly Drawing and PCB layout www.ti.com Figure 16. UCC25230EVM-662 Internal Layer 2 (top view) Figure 17. UCC25230EVM-662 Bottom Copper (top view) SLUU863 – February 2012 Biased Half-Bridge Converter with UCC28250 Secondary-Side Control for 48-V Telecom Applications Submit Documentation Feedback...
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Page 16: List Of Materials
List of Materials www.ti.com List of Materials The EVM components list according to the schematic shown in Figure 1 Table 3. UCC25230EVM-662 List of Materials REF DES DESCRIPTION PART NUMBER C1, C35, C41, C42 Capacitor, ceramic, 16 V, X7R, ±10%, 1 µF, 0603 C10, C37, C39 Capacitor, ceramic, 50 V, NP0, ±10%, 100 pF, 0603... - Page 17 List of Materials www.ti.com Table 3. UCC25230EVM-662 List of Materials (continued) REF DES DESCRIPTION PART NUMBER R15, R45, R47 Resistor, chip, 1/16 W, ±1%, 0 Ω, 0603 Resistor, chip, 1/16 W, ±1%, 75.0 kΩ, 0603 R17, R19 Resistor, chip, 1/16 W, ±1%, 402 Ω, 0603 Resistor, chip, 1/16 W, ±1%, 4.64 kΩ, 0603...
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Page 18: Evaluation Board/Kit Important Notice
Evaluation Board/Kit Important Notice Texas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSES ONLY and is not considered by TI to be a finished end-product fit for general consumer use. Persons handling the product(s) must have electronics training and observe good engineering practice standards. -
Page 19: Regulatory Compliance Information
Any exceptions to this are strictly prohibited and unauthorized by Texas Instruments unless user has obtained appropriate experimental/development licenses from local regulatory authorities, which is responsibility of user including its acceptable authorization. - Page 20 FCC Interference Statement for Class B EVM devices This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
- Page 21 Also, please do not transfer this product, unless you give the same notice above to the transferee. Please note that if you could not follow the instructions above, you will be subject to penalties of Radio Law of Japan. Texas Instruments Japan Limited (address) 24-1, Nishi-Shinjuku 6 chome, Shinjuku-ku, Tokyo, Japan http://www.tij.co.jp...
- Page 22 FDA Class III or similar classification, then you must specifically notify TI of such intent and enter into a separate Assurance and Indemnity Agreement. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2012, Texas Instruments Incorporated...
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Page 23: Important Notice
IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue.
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