Texas Instruments TPS544 20 Series User Manual Download Page 33 | Manualshive

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Figure 9-5. PWR-634EVM Layer 3 (Top View)

Figure 9-6. PWR-634EVM Layer 4 (Top View)

EVM Assembly Drawing and PCB Layout

SLUUAY7B – MAY 2014 – REVISED AUGUST 2021

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TPS544x20 Step-Down Converter Evaluation Module User's Guide

33

Copyright © 2021 Texas Instruments Incorporated

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Summary of Contents for TPS544 20 Series

Page 1: ...Set up and USB Interface Adapter 8 4 5 List of Test Points 9 5 EVM Configuration Using the Fusion GUI 10 5 1 Configuration Procedure 10 6 Test Procedure 11 6 1 Line Load Regulation and Efficiency Meas...

Page 2: ...output up to 30 ADC steady state output current Output is marginable and trimmable via the PMBus interface Programmable UVLO Soft Start and Enable via the PMBus interface Programmable overcurrent war...

Page 3: ...ge regulation Line regulation Input voltage 8 V to 14 V 0 5 Load regulation Output current 0 A to IOUT_max 0 5 VOUT Output voltage ripple VIN 12 V IOUT 20 A 30 mVpp VOUT Output overcurrent 20 A System...

Page 4: ...R15 49 9 R13 VOUTS VOUTS 20 0k R6 30 1k R9 Open R4 DNP ADJ Output Voltage Adjust May be used with LM10011 0 01 F C4 100k R1 BP3 Q1 MMBT3904 1000pF C2 PGOOD VIN 10V 14V VOUT 1 0V 30A MAX FSW 500KHz 400...

Page 5: ...2 Features Some of the tasks you can perform with the GUI include Turn on or off the power supply output either through the hardware control line or the PMBus operation command Monitor real time data...

Page 6: ...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 Instru...

Page 7: ...ure 4 1 PWR 634EVM Overview www ti com Test Setup SLUUAY7B MAY 2014 REVISED AUGUST 2021 Submit Document Feedback TPS544x20 Step Down Converter Evaluation Module User s Guide 7 Copyright 2021 Texas Ins...

Page 8: ...O Adapter Metal Ground Barrel Probe Tip Tip and Barrel VOUT Ripple Measurement Figure 4 3 Tip and Barrel Measurement Test Setup www ti com 8 TPS544x20 Step Down Converter Evaluation Module User s Guid...

Page 9: ...lert signal TP4 T H loop BPEXT Bypass connect TP5 T H loop VOUT Sense TP6 T H loop VOUT Sense TP7 T H loop VOUT TP8 T H loop VIN TP9 T H loop VIN TP10 T H loop GND TP11 T H loop VOUT TP12 T H loop CNT...

Page 10: ...estart continuously Response to OC fault IOUT_OC_WARN_LIMIT 0x4A 0xF828 20 0 A 20 OC warning level MFR_04 VREF_TRIM 0xD4 0x0000 0 000 V 0 Trim voltage ON_OFF_CONFIG 0x02 0x02 Mode always converting Co...

Page 11: ...he voltage drop in the copper traces and in the input and output connectors are not related to the efficiency of the power train and they must not be included in efficiency measurements Table 6 1 List...

Page 12: ...14V Figure 7 1 Efficiency of 1 V Output vs Line and Load 7 2 Load Regulation 1 000 1 002 1 004 1 006 1 008 1 010 1 012 1 014 1 2 3 4 5 6 7 8 9 101112131415161718192021222324 8V 12V 14V Figure 7 2 Loa...

Page 13: ...UT1 at 50 mV division Ch2 IOUT1 at 5 A division Figure 7 4 Transient Response of 1 V Output at 12 VIN Transient is 20 A to 10 A www ti com Performance Data and Typical Characteristic Curves SLUUAY7B M...

Page 14: ...at 20 mV division Ch2 SW Node at 10 V division Figure 7 6 Output Ripple and SW Node of 1 V Output at 12 VIN 20 A Output Performance Data and Typical Characteristic Curves www ti com 14 TPS544x20 Step...

Page 15: ...on Ch2 SW Node at 10 V division Figure 7 8 Shutdown from Control and SW Node of 1 V Output at 12 VIN 20 A Output www ti com Performance Data and Typical Characteristic Curves SLUUAY7B MAY 2014 REVISED...

Page 16: ...Performance Data and Typical Characteristic Curves www ti com 16 TPS544x20 Step Down Converter Evaluation Module User s Guide SLUUAY7B MAY 2014 REVISED AUGUST 2021 Submit Document Feedback Copyright...

Page 17: ...t Fusion Launch Device Found Figure 8 2 Scan Finds Device Successfully www ti com Screen Shots SLUUAY7B MAY 2014 REVISED AUGUST 2021 Submit Document Feedback TPS544x20 Step Down Converter Evaluation M...

Page 18: ...d Figure 8 4 Software Launch Continued Screen Shots www ti com 18 TPS544x20 Step Down Converter Evaluation Module User s Guide SLUUAY7B MAY 2014 REVISED AUGUST 2021 Submit Document Feedback Copyright...

Page 19: ...nse UVLO On Off configuration Soft start time Margin voltage Figure 8 5 First Screen After Successful Launch Configure Limits On Off www ti com Screen Shots SLUUAY7B MAY 2014 REVISED AUGUST 2021 Submi...

Page 20: ...configure all of the configurable parameters Figure 8 7 The screen also shows other details like hexadecimal hex encoding Figure 8 7 Configure All Screen Shots www ti com 20 TPS544x20 Step Down Conver...

Page 21: ...selected When Write to Hardware is selected the change is committed to volatile memory and defaults back to the previous setting on the input power cycle When Store User Defaults is selected the chang...

Page 22: ...ctual step is displayed on relaunch of the Fusion GUI Figure 8 10 Figure 8 10 Configure Other IOUT Cal Gain Change The On Off configuration can also be configured from the All configuration screens wh...

Page 23: ...igure 8 12 Figure 8 12 Configure Store User Defaults In the lower left corner the different view screens can be changed The view screens can be changed between Configure Monitor and Status as needed F...

Page 24: ...device is configured for always converting these radio buttons are either grayed out or have no effect Margin control PMBus log which displays activity on the PMBus Tips and hints which displays addi...

Page 25: ...hanges scale to display both the zero and VOUT level 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 Po...

Page 26: ...re 8 17 Faults Cleared Selecting Status from lower left corner shows the status of the controller Figure 8 18 Figure 8 18 Status Screen Screen Shots www ti com 26 TPS544x20 Step Down Converter Evaluat...

Page 27: ...8 19 Import Project Import Configuration File Selecting Store User Configuration to Flash Memory from the device pulldown menu has the same functionality as the Store User Defaults button from within...

Page 28: ...tored in the directory path shown Logging begins when the Start Data Logging button is selected and stops when it is reselected Figure 8 21 Data Logging Details Common contents of the data log as show...

Page 29: ...UI and the device It also includes common operating values such as VOUT IOUT and temperature The user is prompted to select a location for the file to be stored See the next screen Figure 8 24 Figure...

Page 30: ...s reselected as Stop Logging This file can rapidly grow in size so caution is advised when using this function Figure 8 24 PMBus Log Details Data is stored in a CSV file with a date stamp name Figure...

Page 31: ...oard PCB Figure 9 1 PWR 634EVM Top Layer Assembly Drawing Top View Figure 9 2 PWR 634EVM Top Copper www ti com EVM Assembly Drawing and PCB Layout SLUUAY7B MAY 2014 REVISED AUGUST 2021 Submit Document...

Page 32: ...PWR 634EVM Layer 2 Top View EVM Assembly Drawing and PCB Layout www ti com 32 TPS544x20 Step Down Converter Evaluation Module User s Guide SLUUAY7B MAY 2014 REVISED AUGUST 2021 Submit Document Feedba...

Page 33: ...PWR 634EVM Layer 4 Top View www ti com EVM Assembly Drawing and PCB Layout SLUUAY7B MAY 2014 REVISED AUGUST 2021 Submit Document Feedback TPS544x20 Step Down Converter Evaluation Module User s Guide...

Page 34: ...PWR 634EVM Bottom Assembly Top X ray View EVM Assembly Drawing and PCB Layout www ti com 34 TPS544x20 Step Down Converter Evaluation Module User s Guide SLUUAY7B MAY 2014 REVISED AUGUST 2021 Submit Do...

Page 35: ...uminum 470 F 16 V 20 SMD EMVA160ADA471MH A0G Nippon Chemi Con C1 C3 0 Capacitor ceramic 0 01 F 25 V 10 X7R 0402 C1005X7R1E103K TDK C11 0 Capacitor ceramic 1000 pF 50 V 10 X7R 0402 C1005X7R1H102K TDK C...

Page 36: ...2 CRCW040220K0FKE D Vishay Dale R5 0 Resistor 0 5 0 063 W 0402 CRCW04020000Z0ED Vishay Dale R16 0 Resistor 1 0 5 0 25 W 1206 CRCW12061R00JNEA Vishay Dale R8 R11 R12 3 Resistor 38 3 k 1 0 063 W 0402 CR...

Page 37: ...ferences throughout the document 2 Edited user s guide for clarity 2 Changes from Revision May 2014 to Revision A June 2014 Page Added updated PWR 634EVM Schematic drawings 4 Added updated EVM Assembl...

Page 38: ...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 39: ...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 40: ...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 41: ...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 42: ...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 43: ...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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