4 Test Setup
4.1 Test and Configuration Software
To change any of the default configuration parameters on the EVM, it is necessary to obtain the TI Fusion Digital
Power Designer software. This can be downloaded from the TI website.
4.1.1 Description
The Fusion Digital Power Designer is the graphical user interface (GUI) used to configure and monitor the Texas
Instruments TPS544B20 or TPS544C20 power converter installed on this evaluation module. The application
uses the PMBus protocol to communicate with the controller over serial bus by way of a TI USB adapter (see
).
4.1.2 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. Items such as input voltage, output voltage, output current, temperature, and warnings
and faults are continuously monitored and displayed by the GUI.
• 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
Test Setup
SLUUAY7B – MAY 2014 – REVISED AUGUST 2021
TPS544x20 Step-Down Converter Evaluation Module User's Guide
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