5 Test Setup
5.1 Test and Configuration Software
In order to change any of the default configuration parameters on the EVM, it is necessary to obtain the TI
Fusion Digital Power Designer software.
5.1.1 Description
Fusion Digital Power Designer is the Graphical User Interface (GUI) used to configure and monitor the Texas
Instrument's TPS40400 power controller on this Evaluation Module (EVM). The application uses the PMBus
protocol to communicate with the controller over serial bus by way of a TI USB adapter (see
).
5.1.2 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, and warnings/faults are
continuously monitored and displayed by the GUI.
• Configure common operating characteristics such as V
OUT
, warning and fault thresholds, and switching
frequency.
This software is available for download at this location:
http://focus.ti.com/docs/toolsw/folders/print/
fusion_digital_power_designer.html
Test Setup
6
TPS40400 Buck Controller Evaluation Module User's Guide
SLUU535A – SEPTEMBER 2011 – REVISED JANUARY 2022
Copyright © 2022 Texas Instruments Incorporated
