Texas Instruments UCC28060EVM - Manuals

Page 2 - Schematics; Figure 1; Figure 1. Interleaved PFC Power Stage

4 Schematics + + Schematics www.ti.com Figure 1 and Figure 2 show the schematics for this EVM. See the List of Materials for specific values. To evaluate inductor ripple currents, Jumpers JP8 and JP9 can be removed and replaced with currentloops. Figure 1. Interleaved PFC Power Stage 2 UCC28060EVM 3...

Page 3 - Figure 2. Controller Circuitry

+ www.ti.com Schematics Figure 2. Controller Circuitry SLUU280B – May 2007 – Revised July 2008 UCC28060EVM 300-W Interleaved PFC Pre-Regulator 3 Submit Documentation Feedback

Page 4 - Isolation Transformer; 3V Bias Supply; WARNING; Connect an isolation transformer between the source and unit; before; supplying power to the EVM.; Figure 3; CAUTION

5 Test Setup and Power-Up/Power-Down Instructions Isolation Transformer 0 to 300W Load VM + 13V Bias Supply Test Setup and Power-Up/Power-Down Instructions www.ti.com WARNING There are high voltages present on the pre-regulator. It should onlybe handled by experienced power supply professionals. Toe...

Page 5 - Typical Performance Data; Figure 4; Figure 4. Efficiency at 85V; input voltages. Phase management improved the light load; Figure 5. Efficiency at 115 V; , With and Without Phase Management

6 Typical Performance Data Efficie ncy 90.0% 91.0% 92.0% 93.0% 94.0% 95.0% 96.0% 97.0% 98.0% 99.0% 100.0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% % Output Pow e r E ff ic ie n c y (% ) Effice ncy at V in 85V RM S Effice ncy at V in = 265V RM S Efficie ncy a t Vin = 115V RMS 91.0% 92.0% 93.0% 94.0% ...

Page 6 - Figure 6. Efficiency at 230 V

Efficie ncy a t Vin = 230V RMS 85.0% 87.0% 89.0% 91.0% 93.0% 95.0% 97.0% 99.0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% % Output Pow e r E ff ic ie n c y (% ) With Phas e M anage m e nt Without Phas e M anage m e nt 1.40706 1.17256 0.93805 0.70354 0.46904 0.23453 0.00002 Amplitude(A) 0 6 12 18 24 30...

Page 7 - Figure 8; Figure 9; Figure 9. Inductor and Input Ripple Current at; at Peak of Line Voltage; Input at Half the Line Voltage

6.1 Output Ripple Voltage at Full Load 6.2 Input Ripple Current Cancellation www.ti.com Typical Performance Data Figure 8 illustrates the output ripple voltage. Figure 8. V OUT Ripple, P OUT = 300 W Figure 9 through Figure 14 show the input current (M 1 = I L1 + I L2 ), Inductor Ripple Current (I L1...

Page 9 - and; . Once the UCC28060 control device has determined that the; Figure 17. Brownout at 85 V

6.3 Startup Characteristics 6.4 Brownout Protection www.ti.com Typical Performance Data Figure 15 and Figure 16 illustrate the UCC28060EVM startup characteristics. Figure 15. Start-Up at V IN = 85 V RMS , P OUT = Figure 16. Start-Up at V IN = 265 V RMS , P OUT = 0 350 W W The UCC28060 has a brownout...

Page 10 - Line Transient; and the transient response was evaluated in each case. From the

6.5 Line Transient Typical Performance Data www.ti.com A line transient test was conducted with an ac source on the reference design. The line was varied from230 V RMS to 115 V RMS to 230 V RMS and the transient response was evaluated in each case. From the oscilloscope image in Figure 19 , it can b...

Page 11 - Reference Design Assembly Drawing; Figure 20. Top Layer Assembly

7 Reference Design Assembly Drawing C3 C2 Output 390V Maximum Load 0.77A 13 www.ti.com Reference Design Assembly Drawing Figure 20 and Figure 22 show the top and bottom layers (respectively) of the UCC28060EVM. Note: Board layouts are not to scale. These figures are intended to show how the board is...

Page 12 - List of Materials; Figure 22. Bottom Layer Assembly; Table 2; Table 2. List of Materials

13 C 1 7 D2 Output 390V Maximum Load 0.77A JP8 JP9 8 List of Materials List of Materials www.ti.com Figure 22. Bottom Layer Assembly Table 2 lists the EVM components as configured according to the schematics (see Section 4 ). Table 2. List of Materials Qty RefDes Value Description Size Part Number M...

Page 14 - EVALUATION BOARD/KIT IMPORTANT NOTICE; FCC Warning; ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSES; EVM WARNINGS AND RESTRICTIONS

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...

Page 15 - IMPORTANT NOTICE; Products

IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements,and other changes to its products and services at any time and to discontinue any product or service without notice. Customers shouldobtain the l...