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User's Guide
TPS544x20 Step-Down Converter Evaluation Module
User's Guide
The PWR-634EVM evaluation module uses either the TPS544C20 or TPS544B20 devices. The TPS544C20
and TPS544B20 are highly integrated synchronous buck converters that are designed for up to 30-A or 20-A
current output, respectively.
1 Description..............................................................................................................................................................................
Applications............................................................................................................................................................2
1.2 Features.............................................................................................................................................................................
2 Electrical Performance Specifications.................................................................................................................................
3
Schematic................................................................................................................................................................................4
Setup................................................................................................................................................................................5
4.1 Test and Configuration Software........................................................................................................................................
4.2 Test Equipment..................................................................................................................................................................
PWR-634EVM.............................................................................................................................................................7
4.4 Test Set up and USB Interface Adapter.............................................................................................................................
4.5 List of Test Points...............................................................................................................................................................
5.1 Configuration Procedure..................................................................................................................................................
6 Test Procedure......................................................................................................................................................................
6.2 Efficiency..........................................................................................................................................................................
6.3 Equipment Shutdown.......................................................................................................................................................
7 Performance Data and Typical Characteristic Curves......................................................................................................
7.1
Efficiency..........................................................................................................................................................................12
7.2 Load Regulation...............................................................................................................................................................
7.3 Transient Response.........................................................................................................................................................
7.4 Output Ripple...................................................................................................................................................................
Shots.........................................................................................................................................................................17
8.1 Fusion GUI Screen Shots................................................................................................................................................
9 EVM Assembly Drawing and PCB Layout..........................................................................................................................
10 List of Materials..................................................................................................................................................................
History..................................................................................................................................................................37
SLUUAY7B - MAY 2014 - REVISED AUGUST 2021
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ABSTRACT
Table of Contents
GUI..........................................................................................................................10
Procedure........................................................................................11
TPS544x20 Step-Down Converter Evaluation Module User's Guide
Copyright © 2021 Texas Instruments Incorporated
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Related Manuals for Texas Instruments TPS544 20 Series
Summary of Contents for Texas Instruments TPS544 20 Series
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Page 1: Table Of Contents
8.1 Fusion GUI Screen Shots..............................9 EVM Assembly Drawing and PCB Layout.......................... 10 List of Materials.................................. 11 Revision History..................................37 SLUUAY7B – MAY 2014 – REVISED AUGUST 2021 TPS544x20 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 2: Description
– Programmable high- and low-output margin voltages with a maximum range of 10%, –20% of nominal output voltage • Convenient test points for probing critical waveforms TPS544x20 Step-Down Converter Evaluation Module User's Guide SLUUAY7B – MAY 2014 – REVISED AUGUST 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 3: Electrical Performance Specifications
Full-load efficiency = 8 V, I = 10 A, F = 300 kHz Operating temperature °C oper SLUUAY7B – MAY 2014 – REVISED AUGUST 2021 TPS544x20 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 4: Schematic
Schematic www.ti.com 3 Schematic Figure 3-1. PWR-634EVM Schematic TPS544x20 Step-Down Converter Evaluation Module User's Guide SLUUAY7B – MAY 2014 – REVISED AUGUST 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 5: Test Setup
Configure common operating characteristics such as VOUT trim and margin, UVLO, soft-start time, warning and fault thresholds, fault response, and ON/OFF. This software is available for download at http://www.ti.com/tool/fusion_digital_power_designer SLUUAY7B – MAY 2014 – REVISED AUGUST 2021 TPS544x20 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 6: Test Equipment
EVM. Temperature of the devices on the EVM must be maintained below 105°C. USB-to-GPIO Interface Adapter: A communications adapter is required between the EVM and the host computer. This EVM was designed to use the Texas Instruments USB-to-GPIO Adapter (see Figure 4-2). -
Page 7: The Pwr-634Evm
Test Setup 4.3 The PWR-634EVM Figure 4-1. PWR-634EVM Overview SLUUAY7B – MAY 2014 – REVISED AUGUST 2021 TPS544x20 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 8: Test Set Up And Usb Interface Adapter
Test Setup www.ti.com 4.4 Test Set up and USB Interface Adapter Figure 4-2. Complete Test Setup Including Texas Instruments USB-to-GPIO Adapter Metal Ground Barrel Probe Tip and Barrel V Ripple Measurement Figure 4-3. Tip and Barrel Measurement TPS544x20 Step-Down Converter Evaluation Module User's Guide SLUUAY7B –... -
Page 9: List Of Test Points
T-H loop – TP10 T-H loop TP11 T-H loop – TP12 T-H loop CNTL Control signal SLUUAY7B – MAY 2014 – REVISED AUGUST 2021 TPS544x20 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 10: Evm Configuration Using The Fusion Gui
3. Launch the Fusion GUI software. See the screen shots in Section 8 for more information. 4. Configure the EVM operating parameters as desired. TPS544x20 Step-Down Converter Evaluation Module User's Guide SLUUAY7B – MAY 2014 – REVISED AUGUST 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 11: Test Procedure
2. Reduce input voltage to 0 V. 3. Shut down the external fan if in use. 4. Shut down equipment. SLUUAY7B – MAY 2014 – REVISED AUGUST 2021 TPS544x20 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 12: Performance Data And Typical Characteristic Curves
1 2 3 4 5 6 7 8 9 101112131415161718192021222324 Figure 7-2. Load Regulation of 1-V Output TPS544x20 Step-Down Converter Evaluation Module User's Guide SLUUAY7B – MAY 2014 – REVISED AUGUST 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 13: Transient Response
Figure 7-4. Transient Response of 1-V Output at 12 V , Transient is 20 A to 10 A SLUUAY7B – MAY 2014 – REVISED AUGUST 2021 TPS544x20 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 14: Output Ripple
Figure 7-6. Output Ripple and SW Node of 1-V Output at 12 V , 20-A Output TPS544x20 Step-Down Converter Evaluation Module User's Guide SLUUAY7B – MAY 2014 – REVISED AUGUST 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... - Page 15 Figure 7-8. Shutdown from Control and SW Node of 1-V Output at 12 V , 20-A Output SLUUAY7B – MAY 2014 – REVISED AUGUST 2021 TPS544x20 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
- Page 16 Performance Data and Typical Characteristic Curves www.ti.com Figure 7-9. 50% PreBias Start (No Load) TPS544x20 Step-Down Converter Evaluation Module User's Guide SLUUAY7B – MAY 2014 – REVISED AUGUST 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
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Page 17: Screen Shots
8.1 Fusion GUI Screen Shots Figure 8-1. First Window at Fusion Launch Device Found Figure 8-2. Scan Finds Device Successfully SLUUAY7B – MAY 2014 – REVISED AUGUST 2021 TPS544x20 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... - Page 18 Screen Shots www.ti.com Figure 8-3. Software Launch Continued Figure 8-4. Software Launch Continued TPS544x20 Step-Down Converter Evaluation Module User's Guide SLUUAY7B – MAY 2014 – REVISED AUGUST 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
- Page 19 Soft-start time • Margin voltage Figure 8-5. First Screen After Successful Launch: Configure- Limits & On/Off SLUUAY7B – MAY 2014 – REVISED AUGUST 2021 TPS544x20 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
- Page 20 8-7). The screen also shows other details, like hexadecimal (hex) encoding. Figure 8-7. Configure – All TPS544x20 Step-Down Converter Evaluation Module User's Guide SLUUAY7B – MAY 2014 – REVISED AUGUST 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
- Page 21 When Store User Defaults is selected, the change is committed to the nonvolatile memory and becomes the new default (Figure 8-9). Figure 8-9. Configure- Limits and On/Off- On/Off Config Pop-up SLUUAY7B – MAY 2014 – REVISED AUGUST 2021 TPS544x20 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
- Page 22 The On/Off configuration can also be configured from the All configuration screens, where the same process applies (Figure 8-11). Figure 8-11. Configure- All Config- On/Off Config Pop-up TPS544x20 Step-Down Converter Evaluation Module User's Guide SLUUAY7B – MAY 2014 – REVISED AUGUST 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
- Page 23 Configure, Monitor and Status as needed (Figure 8-13). Figure 8-13. Change View Screen to Monitor Screen SLUUAY7B – MAY 2014 – REVISED AUGUST 2021 TPS544x20 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
- Page 24 At first GUI launch, faults can occur due to communications during power up. These faults can be cleared once the device is enabled. Figure 8-14. Monitor Screen TPS544x20 Step-Down Converter Evaluation Module User's Guide SLUUAY7B – MAY 2014 – REVISED AUGUST 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
- Page 25 Once the EVM is converting and clear of any faults, selecting Clear Faults clears any prior fault flags (Figure 8-16). Figure 8-16. Display Change on Power Up SLUUAY7B – MAY 2014 – REVISED AUGUST 2021 TPS544x20 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
- Page 26 Selecting Status from lower left corner shows the status of the controller (Figure 8-18). Figure 8-18. Status Screen TPS544x20 Step-Down Converter Evaluation Module User's Guide SLUUAY7B – MAY 2014 – REVISED AUGUST 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
- Page 27 Store User Defaults button from within the configure screen. It results in committing the current configuration to nonvolatile memory (Figure 8-20). Figure 8-20. Store Configuration To Memory SLUUAY7B – MAY 2014 – REVISED AUGUST 2021 TPS544x20 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
- Page 28 8-22). The UUT had was running with a modified voltage, at an approximate 3.5-A load and room temperature. Figure 8-22. Data Log File TPS544x20 Step-Down Converter Evaluation Module User's Guide SLUUAY7B – MAY 2014 – REVISED AUGUST 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
- Page 29 See the next screen (Figure 8-24). Figure 8-23. PMBus Logging SLUUAY7B – MAY 2014 – REVISED AUGUST 2021 TPS544x20 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
- Page 30 Data is stored in a CSV file, with a date-stamp name (Figure 8-25). Figure 8-25. PMBus Log TPS544x20 Step-Down Converter Evaluation Module User's Guide SLUUAY7B – MAY 2014 – REVISED AUGUST 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
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Page 31: Evm Assembly Drawing And Pcb Layout
PWR-634EVM printed-circuit board (PCB). Figure 9-1. PWR-634EVM Top Layer Assembly Drawing (Top View) Figure 9-2. PWR-634EVM Top Copper SLUUAY7B – MAY 2014 – REVISED AUGUST 2021 TPS544x20 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... - Page 32 EVM Assembly Drawing and PCB Layout www.ti.com Figure 9-3. PWR-634EVM Layer 1 (Top View) Figure 9-4. PWR-634EVM Layer 2 (Top View) TPS544x20 Step-Down Converter Evaluation Module User's Guide SLUUAY7B – MAY 2014 – REVISED AUGUST 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
- Page 33 EVM Assembly Drawing and PCB Layout Figure 9-5. PWR-634EVM Layer 3 (Top View) Figure 9-6. PWR-634EVM Layer 4 (Top View) SLUUAY7B – MAY 2014 – REVISED AUGUST 2021 TPS544x20 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
- Page 34 Figure 9-7. PWR-634EVM Bottom Copper (Top X-ray View) Figure 9-8. PWR-634EVM Bottom Assembly (Top X-ray View) TPS544x20 Step-Down Converter Evaluation Module User's Guide SLUUAY7B – MAY 2014 – REVISED AUGUST 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
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Page 35: List Of Materials
10,000 per roll !PCB Printed circuit board PWR634 Transistor, NPN, 40 V, 0.2 A, SOT-23 MMBT3904 Fairchild Semiconductor SLUUAY7B – MAY 2014 – REVISED AUGUST 2021 TPS544x20 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... - Page 36 Test point, miniature, black, TH 5001 Keystone TP11 TPS544C20 18-V, 30-A PMBus Synchronous Buck TPS544C20RVF Texas Instruments Converters, RVF0040A TPS544x20 Step-Down Converter Evaluation Module User's Guide SLUUAY7B – MAY 2014 – REVISED AUGUST 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
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Page 37: Revision History
• Added updated EVM Assembly Drawings and PCB Layout drawings............. • Changed List of Materials..........................SLUUAY7B – MAY 2014 – REVISED AUGUST 2021 TPS544x20 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... - Page 38 STANDARD TERMS FOR EVALUATION MODULES Delivery: TI delivers TI evaluation boards, kits, or modules, including any accompanying demonstration software, components, and/or documentation which may be provided together or separately (collectively, an “EVM” or “EVMs”) to the User (“User”) in accordance with the terms set forth herein.
- Page 39 www.ti.com Regulatory Notices: 3.1 United States 3.1.1 Notice applicable to EVMs not FCC-Approved: FCC NOTICE: This kit is designed to allow product developers to evaluate electronic components, circuitry, or software associated with the kit to determine whether to incorporate such items in a finished product and software developers to write software applications for use with the end product.
- Page 40 www.ti.com Concernant les EVMs avec antennes détachables Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne d'un type et d'un gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada. Dans le but de réduire les risques de brouillage radioélectrique à...
- Page 41 www.ti.com EVM Use Restrictions and Warnings: 4.1 EVMS ARE NOT FOR USE IN FUNCTIONAL SAFETY AND/OR SAFETY CRITICAL EVALUATIONS, INCLUDING BUT NOT LIMITED TO EVALUATIONS OF LIFE SUPPORT APPLICATIONS. 4.2 User must read and apply the user guide and other available documentation provided by TI regarding the EVM prior to handling or using the EVM, including without limitation any warning or restriction notices.
- Page 42 Notwithstanding the foregoing, any judgment may be enforced in any United States or foreign court, and TI may seek injunctive relief in any United States or foreign court. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2019, Texas Instruments Incorporated...
- Page 43 TI products. TI’s provision of these resources does not expand or otherwise alter TI’s applicable warranties or warranty disclaimers for TI products.IMPORTANT NOTICE Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2021, Texas Instruments Incorporated...
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