Related Manuals for Texas Instruments LM5122EVM-2PH
Summary of Contents for Texas Instruments LM5122EVM-2PH
- Page 1 LM5122EVM-2PH Evaluation Module User's Guide Literature Number: SNVU205 APRIL 2013...
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Page 2: Table Of Contents
......................... Efficiency ......................Load Transient ....................... Interleaving ....................Light Load Operations ........................Startup ......................Loop Response ......................... Schematic ..........................Layout ......................... Bill of Materials Table of Contents SNVU205 – APRIL 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated... - Page 3 ....................Mid2 Copper (X-Ray View) .................... Bottom Copper (X-Ray View) List of Tables ..................Electrical Performance Specifications ......................Pin Descriptions ......................Bill of Materials SNVU205 – APRIL 2013 List of Figures Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
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Page 4: Introduction
LM5122EVM-2PH Evaluation Module Introduction The LM5122EVM-2PH evaluation module (EVM) provides the design engineer with a fully functional dual phase synchronous boost converter to evaluate the Texas Instruments LM5122 synchronous boost controller device. The EVM provides 28 V output at up to 7 A current from a 9 V to 20 V input. The EVM is designed to start up from a single power supply without any additional bias voltage. -
Page 5: Test Equipment
VIN and GND. Wire gauge for the output electronic load should be 12 AWG minimum and no longer than 1 foot each for VOUT and GND. SNVU205 – APRIL 2013 LM5122EVM-2PH Evaluation Module Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated... -
Page 6: Test Setup
Efficiency = 20V = 9V SUPPPLY SUPPLY = 12V SUPPLY = 250 kHz = 28V LOAD CURRENT [A] C001 Figure 2. Efficiency LM5122EVM-2PH Evaluation Module SNVU205 – APRIL 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated... -
Page 7: Load Transient
= 12 V, 3.5 A to 7 A and 7 A to 3.5 A load transient SUPPLY C1: V Figure 3. Load Transient Interleaving = 12 V SUPPLY C1: SW1, C2: SW2 Figure 4. Interleaving SNVU205 – APRIL 2013 LM5122EVM-2PH Evaluation Module Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated... -
Page 8: Light Load Operations
= 12 V, I = 0 A SUPPLY LOAD C1:SW1 Figure 5. Pulse Skip C1: SW1 Figure 6. Skip Cycle C1: SW1 Figure 7. Forced PWM LM5122EVM-2PH Evaluation Module SNVU205 – APRIL 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated... -
Page 9: Startup
Figure 8. Startup Loop Response = 12V SUPPLY PHASE = 7.0A LOAD GAIN -135 -180 1000 10000 100000 FREQUENCY [Hz] C002 Figure 9. Loop Response SNVU205 – APRIL 2013 LM5122EVM-2PH Evaluation Module Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated... -
Page 10: Schematic
Schematic www.ti.com Schematic Figure 10. Schematic (Power Block) LM5122EVM-2PH Evaluation Module SNVU205 – APRIL 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated... -
Page 11: Schematic (Control Block)
Schematic www.ti.com Figure 11. Schematic (Control Block) SNVU205 – APRIL 2013 LM5122EVM-2PH Evaluation Module Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated... -
Page 12: Layout
LM5122 device. Figure 12. Top Silk (Top View) Figure 13. Bottom Silk (X-Ray View) LM5122EVM-2PH Evaluation Module SNVU205 – APRIL 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated... -
Page 13: Top Copper (Top View)
Layout www.ti.com Figure 14. Top Copper (Top View) Figure 15. Mid1 Copper (X-Ray View) SNVU205 – APRIL 2013 LM5122EVM-2PH Evaluation Module Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated... -
Page 14: Mid2 Copper (X-Ray View)
Layout www.ti.com Figure 16. Mid2 Copper (X-Ray View) Figure 17. Bottom Copper (X-Ray View) LM5122EVM-2PH Evaluation Module SNVU205 – APRIL 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated... -
Page 15: Bill Of Materials
H3, H4, H7, H8 B&F NY PMS 440 0025 PH Nylon Header, TH, 100mil, 2x1, Gold plated SAMTEC TSW-102-07-G-S U1, U2 Synchronous Boost Controller Texas Instruments LM5122MH SNVU205 – APRIL 2013 LM5122EVM-2PH Evaluation Module Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated... - Page 16 Bill of Materials www.ti.com LM5122EVM-2PH Evaluation Module SNVU205 – APRIL 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
- Page 17 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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