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15 Revision History

NOTE: Page numbers for previous revisions may differ from page numbers in the current version.

Changes from Revision * (July 2016) to Revision A (August 2021)

Page

• Updated user's guide title...................................................................................................................................

3

• Updated the numbering format for tables, figures, and cross-references throughout the document. ................

3

Revision History

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42

TPS549D22 SWIFT™ Step-Down Converter Evaluation Module User's Guide

SLUUBG4A – JULY 2016 – REVISED AUGUST 2021

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Copyright © 2021 Texas Instruments Incorporated

Summary of Contents for TPS549D22

Page 1: ...Using the Fusion GUI 11 10 Test Procedure 12 10 1 Line and Load Regulation Measurement Procedure 12 10 2 Efficiency 12 10 3 Equipment Shutdown 12 11 Performance Data and Typical Characteristic Curves...

Page 2: ...28 Figure 12 9 Change View Screen to Monitor Screen 29 Figure 12 10 System Dashboard 30 Figure 12 11 Status Screen 31 Figure 12 12 Store Configuration To Memory 32 Figure 12 13 PMBus Logging 33 Figur...

Page 3: ...put at up to 40 A load current 2 1 Typical End User Applications Enterprise Storage SSD NAS Wireless and Wired Communication Infrastructure Industrial PCs Automation ATE PLC Video Surveillance Enterpr...

Page 4: ...IOUT max 0 40 A Output voltage regulation Line regulation input voltage 5 V to 16 V 0 5 Load regulation output current 0 A to IOUT max 0 5 VOUT Output voltage ripple VIN 12 V IOUT 40 A 10 mVPP VOUT O...

Page 5: ...A 2 PMB_CLK 3 EN_UVLO 4 BOOT 5 SW 6 SW 7 SW 8 SW 9 SW 10 SW 11 SW 12 PGND 13 PGND 14 PGND 15 PGND 16 PGND 17 PGND 18 PGND 19 PGND 20 PVIN 21 PVIN 22 PVIN 23 PVIN 24 PVIN 25 PVIN 26 NC 27 VDD 28 DRGND...

Page 6: ...must be purchased separately It is not included with this EVM kit 5 1 2 Features Some of the tasks performed with the GUI include Turn on or off the power supply output either through the hardware con...

Page 7: ...ir cooling with a small fan aimed at the 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...

Page 8: ...p and Barrel VOUT Ripple Measurement Figure 7 2 Tip and Barrel Measurement PWR 784EVM www ti com 8 TPS549D22 SWIFT Step Down Converter Evaluation Module User s Guide SLUUBG4A JULY 2016 REVISED AUGUST...

Page 9: ...B Interface Adapter www ti com PWR 784EVM SLUUBG4A JULY 2016 REVISED AUGUST 2021 Submit Document Feedback TPS549D22 SWIFT Step Down Converter Evaluation Module User s Guide 9 Copyright 2021 Texas Inst...

Page 10: ...ternal resistor divider ratio during initial power up TP15 T H loop VSEL Monitor the VSEL external resistor divider ratio during initial power up TP9 T H loop BP LDO output TP8 T H loop PG Power good...

Page 11: ...enable regulatio Unit ImmediateOff Margin None STATUS_BYTE 0x78 0x00 Status Output Off Vout OV Fault IOUT OC Fault Vin UV Fault Temperature CML STATUS_CML 0x7E 0x00 Status Invalid Command Invalid Data...

Page 12: ...ecrease VIN to 0 V or turn off the supply 10 2 Efficiency To measure the efficiency of the power train on the EVM it is important to measure the voltages at the correct location This is necessary beca...

Page 13: ...8 V IN 12 V IN 16 V IN Figure 11 1 Efficiency of 1 V Output vs Load 11 2 Load Regulation IOUT A V OUT V 0 5 10 15 20 25 30 0 99 0 995 1 1 005 1 01 D002 8 V 12 V 16 V Figure 11 2 Load Regulation of 1 V...

Page 14: ...on of 1 V Output Figure 11 4 PMBus VOUT Step Up 0 6 V to 1 2 V at 0 A Performance Data and Typical Characteristic Curves www ti com 14 TPS549D22 SWIFT Step Down Converter Evaluation Module User s Guid...

Page 15: ...at 0 A www ti com Performance Data and Typical Characteristic Curves SLUUBG4A JULY 2016 REVISED AUGUST 2021 Submit Document Feedback TPS549D22 SWIFT Step Down Converter Evaluation Module User s Guide...

Page 16: ...40 A Performance Data and Typical Characteristic Curves www ti com 16 TPS549D22 SWIFT Step Down Converter Evaluation Module User s Guide SLUUBG4A JULY 2016 REVISED AUGUST 2021 Submit Document Feedbac...

Page 17: ...t 40 A www ti com Performance Data and Typical Characteristic Curves SLUUBG4A JULY 2016 REVISED AUGUST 2021 Submit Document Feedback TPS549D22 SWIFT Step Down Converter Evaluation Module User s Guide...

Page 18: ...formance Data and Typical Characteristic Curves www ti com 18 TPS549D22 SWIFT Step Down Converter Evaluation Module User s Guide SLUUBG4A JULY 2016 REVISED AUGUST 2021 Submit Document Feedback Copyrig...

Page 19: ...Ripple Figure 11 10 Output Ripple and SW Node of 1 V Output at 12 VIN 0 A Output www ti com Performance Data and Typical Characteristic Curves SLUUBG4A JULY 2016 REVISED AUGUST 2021 Submit Document F...

Page 20: ...12 Start up from Control 1 V Output at 12 VIN 40 A Output Performance Data and Typical Characteristic Curves www ti com 20 TPS549D22 SWIFT Step Down Converter Evaluation Module User s Guide SLUUBG4A...

Page 21: ...e 11 14 Soft Stop from Control 1 V Output at 12 VIN 40 A Output www ti com Performance Data and Typical Characteristic Curves SLUUBG4A JULY 2016 REVISED AUGUST 2021 Submit Document Feedback TPS549D22...

Page 22: ...12 VIN 40 A Output Performance Data and Typical Characteristic Curves www ti com 22 TPS549D22 SWIFT Step Down Converter Evaluation Module User s Guide SLUUBG4A JULY 2016 REVISED AUGUST 2021 Submit Do...

Page 23: ...aunch Figure 12 2 Scan Finds Device Successfully www ti com Fusion GUI SLUUBG4A JULY 2016 REVISED AUGUST 2021 Submit Document Feedback TPS549D22 SWIFT Step Down Converter Evaluation Module User s Guid...

Page 24: ...igure 12 4 Software Launch Continued Fusion GUI www ti com 24 TPS549D22 SWIFT Step Down Converter Evaluation Module User s Guide SLUUBG4A JULY 2016 REVISED AUGUST 2021 Submit Document Feedback Copyrig...

Page 25: ...ettings Frequency RAMP DCAP3 VDD UVLO On Off Configuration Track and Sequencing Write Protect VOUT Command Voltage VOUT Margin Operation Figure 12 5 First Screen After Successful Launch Configure Limi...

Page 26: ...ns Figure 12 6 Figure 12 6 Configure Frequency FS Configuration Pop up Fusion GUI www ti com 26 TPS549D22 SWIFT Step Down Converter Evaluation Module User s Guide SLUUBG4A JULY 2016 REVISED AUGUST 202...

Page 27: ...y and defaults back to previous setting on input power cycle When Store Config to NVM is selected change is committed to nonvolatile memory and becomes the new default Figure 12 7 Figure 12 7 Configur...

Page 28: ...prompts a confirm selection pop up and if confirmed the changes are committed to nonvolatile memory Figure 12 8 Figure 12 8 Configure Store Config to NVM Fusion GUI www ti com 28 TPS549D22 SWIFT Step...

Page 29: ...en Configure Monitor and Status as needed Figure 12 9 Figure 12 9 Change View Screen to Monitor Screen www ti com Fusion GUI SLUUBG4A JULY 2016 REVISED AUGUST 2021 Submit Document Feedback TPS549D22 S...

Page 30: ...plays system level information Figure 12 10 Figure 12 10 System Dashboard Fusion GUI www ti com 30 TPS549D22 SWIFT Step Down Converter Evaluation Module User s Guide SLUUBG4A JULY 2016 REVISED AUGUST...

Page 31: ...f the controller Figure 12 11 Figure 12 11 Status Screen www ti com Fusion GUI SLUUBG4A JULY 2016 REVISED AUGUST 2021 Submit Document Feedback TPS549D22 SWIFT Step Down Converter Evaluation Module Use...

Page 32: ...e configure screen It results in committing the current configuration to nonvolatile memory Figure 12 12 Figure 12 12 Store Configuration To Memory Fusion GUI www ti com 32 TPS549D22 SWIFT Step Down C...

Page 33: ...loop between the GUI and the device The user is prompted to select a location for the file to be stored See next screen Figure 12 14 Figure 12 13 PMBus Logging www ti com Fusion GUI SLUUBG4A JULY 201...

Page 34: ...g button is selected and stops when it is reselected as Stop Logging This file can rapidly grow in size so caution is advised when using this function Figure 12 14 PMBus Log Details Fusion GUI www ti...

Page 35: ...per finish for all layers Figure 13 1 PWR 784EVM Top Layer Assembly Drawing Top View Figure 13 2 PWR 784EVM Top Solder Mask Top View www ti com EVM Assembly Drawing and PCB Layout SLUUBG4A JULY 2016 R...

Page 36: ...784EVM Inner Layer 1 Top View EVM Assembly Drawing and PCB Layout www ti com 36 TPS549D22 SWIFT Step Down Converter Evaluation Module User s Guide SLUUBG4A JULY 2016 REVISED AUGUST 2021 Submit Docume...

Page 37: ...WR 784EVM Inner Layer 3 Top View www ti com EVM Assembly Drawing and PCB Layout SLUUBG4A JULY 2016 REVISED AUGUST 2021 Submit Document Feedback TPS549D22 SWIFT Step Down Converter Evaluation Module Us...

Page 38: ...WR 784EVM Bottom Layer Top View EVM Assembly Drawing and PCB Layout www ti com 38 TPS549D22 SWIFT Step Down Converter Evaluation Module User s Guide SLUUBG4A JULY 2016 REVISED AUGUST 2021 Submit Docum...

Page 39: ...R 784EVM Bottom Overlay Layer Top View www ti com EVM Assembly Drawing and PCB Layout SLUUBG4A JULY 2016 REVISED AUGUST 2021 Submit Document Feedback TPS549D22 SWIFT Step Down Converter Evaluation Mod...

Page 40: ...TH 5x2 Shrouded header 5103308 1 TE Connectivity L1 1 250nH Inductor Shielded Drum Core Ferrite 250 nH 50 A 0 000165 ohm SMD 12 5x13mm 744309025 Wurth Elektronik LBL1 1 Thermal Transfer Printable Labe...

Page 41: ...0603 GRM188R71H682KA01D Murata C34 C44 0 1uF CAP CERM 1 F 16 V 10 X5R 0603 0603 C0603C105K4PACTU Kemet C36 0 1000pF CAP CERM 1000 pF 25 V 10 X7R 0603 0603 GRM188R71E102KA01D Murata C37 0 470uF CAP Tan...

Page 42: ...on A August 2021 Page Updated user s guide title 3 Updated the numbering format for tables figures and cross references throughout the document 3 Revision History www ti com 42 TPS549D22 SWIFT Step Do...

Page 43: ...ther than TI b the nonconformity resulted from User s design specifications or instructions for such EVMs or improper system design or c User has not paid on time Testing and other quality control tec...

Page 44: ...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 in...

Page 45: ...instructions set forth by Radio Law of Japan which includes but is not limited to the instructions below with respect to EVMs which for the avoidance of doubt are stated strictly for convenience and s...

Page 46: ...any interfaces electronic and or mechanical between the EVM and any human body are designed with suitable isolation and means to safely limit accessible leakage currents to minimize the risk of electr...

Page 47: ...R DAMAGES ARE CLAIMED THE EXISTENCE OF MORE THAN ONE CLAIM SHALL NOT ENLARGE OR EXTEND THIS LIMIT 9 Return Policy Except as otherwise provided TI does not offer any refunds returns or exchanges Furthe...

Page 48: ...are subject to change without notice TI grants you permission to use these resources only for development of an application that uses the TI products described in the resource Other reproduction and...

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