Using the UCC28700EVM-068 User's Guide Literature Number: SLUU968 July 2012
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User's Guide SLUU968 – July 2012 UCC28700EVM-068 5-W USB Adapter 1 Description The UCC28700EVM-068 is a 5-W evaluation module for evaluating off-line adapters for USB applications. The UCC28700EVM-068 is intended for evaluation purposes only and is not intended to be an end product. The UCC28700EVM-068 converts a 100-V to 240-V RMS input voltage down to an isolated 5 V DC output, with a 1-A current limit for USB adapter applications. Figure 1.
Electrical Performance Specifications 2 www.ti.com Electrical Performance Specifications Table 1. Electrical Performance Specifications PARAMETER TEST CONDITION MIN TYP MAX UNITS Input Characterstics VIN Input voltage 100 No load input power 115/230 VIN = nom, IOUT = 0 A 240 V 30 mW Output Characterstics VOUT Output voltage VIN = nom, IOUT = nom VOUT Line regulation VIN = min to max, IOUT = nom 4.75 5 5.
Neutral Line J2 1 2 3 TP2 TP1 VIN = 90V to 265V RMS 10 R3 HD06 D5 + 4.7 uF C4 470 uH L1 487 + 4.7 uF C5 R13 2.05 R8 R6 5.11M R5 5.11M R4 5.11M 1000pF C8 T1 330nF C7 22.5 R15 RS1B-13-F D3 Note: No Value Means Not Populated R12 10.0k STD2HNK60Z-1 Q1 MURS160-13-F R11 10 SMBJP6KE82A D4 D1 560 uF C2 3 DRV C9 + CS 4 GND 5 VS 6 U1 UCC28700 + R10 4.64k TP7 560 uF C3 B340LB-13-F 1 CBC/NTC 2 VDD D2 C6 VOUT - R2 3.01k VOUT + R9 30.
Test Setup 4 www.ti.com Test Setup Safety: This evaluation module is not encapsulated and there are voltages that are much greater than 50 V DC. • If you are not trained in the proper safety of handling and testing power electronics please do not use this evaluation module. Voltage Source: Isolated AC source or variable AC transformer capable of 265-V AC cable of handling 10 W. Voltmeter: One digital voltage meter.
Performance Data and Typical Characteristic Curves www.ti.com 6 Performance Data and Typical Characteristic Curves 6.1 Efficiency Efficiency 78% 76% % Efficiency 74% 72% 70% Efficiency @ 115V RMS 68% Efficiency @ 230V RMS 66% 64% 25% 50% 75% 100% Output Power Figure 4. UCC28700EVM-068 Efficiency 6.2 Startup at 115-V RMS Input Figure 5. No Load SLUU968 – July 2012 Submit Documentation Feedback Figure 6.
Performance Data and Typical Characteristic Curves 6.3 www.ti.com Startup at 230-V RMS Input Figure 7. No Load 6.4 Load Transients at 115-V RMS Input Figure 9. 0.1-A to 0.6-A Load Step 8 Figure 8. 5-Ω Load Figure 10. 0.6-A to 0.
Performance Data and Typical Characteristic Curves www.ti.com 6.5 Load Transients at 230-V RMS Input Figure 11. 0.1-A to 0.6-A Load Step 6.6 Figure 12. 0.6-A to 0.1-A Load Step Output Ripple Voltage • • CH4 = VOUT at EVM output. CH2 = VOUT measured at the end of the 1 M of cable in parallel with a 1-µF capacitor. The output voltage has less than 50 mV of output ripple at the end of the cable. Figure 13.
EVM Assembly Drawing and PCB layout 7 www.ti.com EVM Assembly Drawing and PCB layout Figure 14. Top Assembly Drawing Figure 15.
EVM Assembly Drawing and PCB layout www.ti.com Figure 16. Bottom Assembly Drawing Figure 17.
List of Materials 8 www.ti.com List of Materials The EVM components list according to the schematic shown in Figure 2. Table 3. UCC28700EVM-068 List of Materials QTY 12 REF DES DESCRIPTION PART NUMBER C1 Capacitor, ceramic chip, 200 V, ±10%, 1206, 1 nF 2 C2, C3 Capacitor, electrolytic, 10VDC, -55°C to 125°C, ±20%, 560 RHT1A561MDN1 µF Nichicon 2 C4, C5 Capacitor, electrolytic, 400 V, -25°C to 85°C, ±20%, 4.
EVALUATION BOARD/KIT/MODULE (EVM) ADDITIONAL TERMS Texas Instruments (TI) provides the enclosed Evaluation Board/Kit/Module (EVM) under the following conditions: The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user indemnifies TI from all claims arising from the handling or use of the goods.
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.
【Important Notice for Users of this Product in Japan】 】 This development kit is NOT certified as Confirming to Technical Regulations of Radio Law of Japan If you use this product in Japan, you are required by Radio Law of Japan to follow the instructions below with respect to this product: 1. 2. 3. Use this product in a shielded room or any other test facility as defined in the notification #173 issued by Ministry of Internal Affairs and Communications on March 28, 2006, based on Sub-section 1.
EVALUATION BOARD/KIT/MODULE (EVM) WARNINGS, RESTRICTIONS AND DISCLAIMERS For Feasibility Evaluation Only, in Laboratory/Development Environments. Unless otherwise indicated, this EVM is not a finished electrical equipment and not intended for consumer use.
EVALUATION BOARD/KIT/MODULE (EVM) ADDITIONAL TERMS Texas Instruments (TI) provides the enclosed Evaluation Board/Kit/Module (EVM) under the following conditions: The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user indemnifies TI from all claims arising from the handling or use of the goods.
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.
【Important Notice for Users of this Product in Japan】 】 This development kit is NOT certified as Confirming to Technical Regulations of Radio Law of Japan If you use this product in Japan, you are required by Radio Law of Japan to follow the instructions below with respect to this product: 1. 2. 3. Use this product in a shielded room or any other test facility as defined in the notification #173 issued by Ministry of Internal Affairs and Communications on March 28, 2006, based on Sub-section 1.
EVALUATION BOARD/KIT/MODULE (EVM) WARNINGS, RESTRICTIONS AND DISCLAIMERS For Feasibility Evaluation Only, in Laboratory/Development Environments. Unless otherwise indicated, this EVM is not a finished electrical equipment and not intended for consumer use.
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. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.
