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Test Setup
7
SLUUBN2 – March 2017
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Copyright © 2017, Texas Instruments Incorporated
TPS549B22EVM-847, 25-A Single Synchronous Step-Down Converter With
Full Differential Sense and PMBus™
5
Test Setup
5.1
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.
5.1.1
Description
The Fusion Digital Power Designer is the graphical user interface (GUI) used to configure and monitor the
Texas Instruments TPS549B22 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. This
adapter can be purchased at
http://www.ti.com/tool/usb-to-gpio
.
NOTE:
The TI USB adapter 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 control line or the PMBus
operation command.
•
Monitor status registers. 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, 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
.
