5-36V
3.3V
5-36V
Setup and Operation
6
SLAU822A – December 2019 – Revised April 2020
Copyright © 2019–2020, Texas Instruments Incorporated
TUSS44x0 EVM for Ultrasonic Sensors User's Guide
Table 1. Power Mode Jumper Position
POWER MODE
JUMPER
POSITIONS
DESCRIPTION
VISUAL REFERENCE
Standard
(Default)
J6 Pin 1-2 Open
J6 Pin 3-4 Short
J6 Pin 5-6 Open
J8 Pin 1-2 Short
J8 Pin 3-4 Short
The MSP-EXP430F5529LP is powered by
USB, and the TUSS44x0 driver voltage
(VPWR) is powered by an external source at
J6 Pin 6 (MAIN) or the red-banana jack
connector J5.
When the jumpers of J8 are installed, the
MAIN to 3.3-V LDO rail from the on-board
TPS7B6933 LDO supplies the TUSS44x0
voltage regulator input (VDD).
USB Only
(Out-of-Box)
J6 Pin 1-2 Open
J6 Pin 3-4 Short
J6 Pin 5-6 Short
J8 Pin 1-2 Short
J8 Pin 3-4 Short
The MSP-EXP430F5529LP and BOOSTXL-
TUSS44x0 are powered by USB.
This power mode uses the 5-V USB supply at
the TUSS44x0 driver voltage with a
recommended maximum current of 100 mA.
When the jumpers of J8 are installed, the
MAIN to 3.3-V LDO rail from the on-board
TPS7B6933 LDO supplies the TUSS44x0
voltage regulator input (VDD).
External Only
J6 Pin 1-2 Open
J6 Pin 3-4 Short
J6 Pin 5-6 Open
J8 Pin 1-2 Open
J8 Pin 3-4 Open
The BOOSTXL-TUSS44x0 driver voltage and
voltage regulator input supplies come from
two independent external sources: J6 Pin 6 or
J5 (MAIN) and J6 Pin 2 (VDD).
This options requires all jumpers at J8 to be
removed to disable and disconnect the 3.3-V
LDO input and output.
MAIN is rated for a voltage range of 5 V to 36 V, and VDD is rated for a voltage of 3.3 V when paired with
the MSP-EXP430F5529LP master. VDD can be increased to 5.0 V if paired with a different microcontroller
master.
The LaunchPad MCU is known to create noise at the TUSS44x0 AFE. If the noise becomes too large in
amplitude, especially for high-pass filter mode measurements, then TI recommends to make the
LaunchPad ground and BoosterPack ground common at the external power supply (if applicable) by
removing the shunt at J6 Pin 3-4. GLP is an abbreviation for Ground of LaunchPad. It can only be made
common to the BoosterPack ground through jumper at J6 Pin 3-4. This shunt is required for the USB Only
power mode of evaluation.
2.2
BOOST-TUSS44x0 (Discontinued EVM) Setup and Operation
2.2.1
Required Equipment for Device Evaluation
The following elements are required for proper operation and to receive consistent results as described in
this document:
•
BOOST-TUSS4440 or BOOST-TUSS4470 BoosterPack Plug-in Module
•
MSP-EXP430F5529LP (included with the purchase of the TUSS44x0-F5529-BNDL)
•
TUSS44x0 EVM GUI (TUSS Gen III EVM GUI) download from TUSS44x0 product page
•
A computer running an operating system of Windows 7 or later, and .NET Framework 4.5
•
Micro-USB to USB cable (included with the purchase of the TUSS44x0-F5529-BNDL)
•
(Optional) A single power supply unit, battery, or AC/DC adapter to provide a voltage output from 5 V
to 36 V and a current output up to 500 mA.
2.2.2
Initial EVM Setup
2.2.2.1
Setup Instructions
The user requires two separate boards from Texas Instruments to assemble the TUSS44x0 EVM, as
shown in
.