Texas Instruments DRV5055EVM User manual

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DRV5055EVM
User's Guide
SLYU047A–April 2018–Revised May 2018
DRV5055EVM
This user’s guide describes the characteristics, operation, and use of the DRV5055 evaluation module
(EVM). This EVM is designed to evaluate the performance of the DRV5055 ratiometric, linear, Hall effect
sensors. Throughout this document, the terms evaluation board, evaluation module, and EVM are
synonymous with the DRV5055EVM. This document includes a schematic, reference printed circuit board
(PCB) layouts, and a complete bill of materials (BOM).

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DRV5055EVM
Contents
1 Overview...................................................................................................................... 3
2 Operation ..................................................................................................................... 4
3 Hardware...................................................................................................................... 5
4 Schematics, PCB Layout, and Bill of Materials.......................................................................... 8
List of Figures
1 Microcontroller Source Code Operation .................................................................................. 5
2 Schematic for DRV5055 Devices Gain Variants A1 to A4 (Right to Left)............................................ 8
3 Schematic of LCD for Measurement Display, Microcontroller for Data Processing, and Switch for
Expanding GPIO Functionality ............................................................................................ 9
4 Schematic of Push-Button User Input, Slider Switch User Input, and Programming Input....................... 10
5 Schematic of LED and Indicators and Slider Switch Status Reader ................................................ 11
6 Schematic of Supply Input and Power Conditioning................................................................... 11
7 Top Overlay................................................................................................................. 12
8 Top Layer ................................................................................................................... 12
9 Bottom Overlay............................................................................................................. 12
10 Bottom Layer................................................................................................................ 12
List of Tables
1 DRV5055 Device Summary................................................................................................ 3
2 Kit Contents .................................................................................................................. 3
3 Related Documentation..................................................................................................... 3
4 Bill of Materials ............................................................................................................. 13
Trademarks
All trademarks are the property of their respective owners.

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DRV5055EVM
1 Overview
The DRV5055 family of linear Hall effect sensors sense magnetic fields ranging from 21 mT to 176 mT,
depending on device and supply voltage. For each device, four gains are available. For the DRV5055, the
gains at 3.3 V VCC include: 7.5 mV/mT, 15 mV/mT, 30 mV/mT, and 60 mV/mT. These devices operate
from a single 3-V to 5.5-V power supply, drawing a maximum of 10 mA of supply current. These devices
are currently available in a 3-pin SOT-23 or 3-pin TO-92 package. Table 1 lists available gain options.
Table 1. DRV5055 Device Summary
Product Gain at 3.3V VCC
DRV5055A1 60 mV/mT
DRV5055A2 30 mV/mT
DRV5055A3 15 mV/mT
DRV5055A4 7.5 mV/mT
1.1 Kit Contents
Table 2 lists the contents of the DRV5055EVM kit. Contact the nearest Texas Instruments Product
Information Center if any component is missing. Click the links in Table 3 for further information on the
DRV5055. The device name links to the product web folder on www.ti.com. The literature number links to
the user's guide PDF.
Table 2. Kit Contents
Item Quantity
DRV5055EVM test board 1
Cylindrical magnet 1
USB cable 1
1.2 Related Documentation From Texas Instruments
This EVM user's guide provides information regarding TI's integrated circuits used in the assembly of the
DRV5055EVM. This user's guide is available from the TI website under literature number SLYU047. Any
letter appended to the literature number corresponds to the document revision that is current at the time of
the writing of this document. Newer revisions are available from www.ti.com or the Texas Instruments'
Literature Response Center at [phone] or the Product Information Center at [phone]. When
ordering, identify the document by both title and literature number. Table 3 lists documentation related to
the DRV5055EVM.
Table 3. Related Documentation
Document Title Document Literature Number
DRV5055 data sheet SBAS640
DRV5055-Q1 data sheet SBAS639
SN74LVC1G17 data sheet SCES351
TCA9535 data sheet SCPS201
LP5907 data sheet SNVS798
TS5A23159 data sheet SCDS201

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DRV5055EVM
2 Operation
2.1 Quick Start Setup
The following instructions describe how to set up and use the DRV5055EVM.
Step 1. Insert the USB cable into the EVM onboard USB receptacle.
Step 2. For proper calibration, make certain that there are no magnets within a few feet of the EVM
when the EVM powers up.
Step 3. Plug the USB cable into any USB power adapter (for example, laptop, desktop, power bank,
and so on). LED D13 on the far bottom right of the board indicates the board is powered,
calibrated, and is taking sample measurements from the DRV5055A1 (default EVM startup
device).
2.2 Measurements
The DRV5055EVM measures a magnetic field with multiple devices and the respective gain variants.
Push-button S1 selects the different gain variants of the DRV5055 devices. The devices are arranged
such that gain variants increase sequentially from right to left. The LCD displays the measurement
corresponding to the selected device. The measurement format is adjusted by the slide switch labeled
Display Mode (K1).
Step 1. Click the Device Select Switch until an LED indicates the device of interest is selected.
Step 2. Adjust the Display Mode slide switch to the measurement format of interest.
Step 3. Introduce magnetic stimulus (for example, the magnet included in the evaluation kit).

Start Up
1. Set Up Microcontroller Registers
2. Calibrate Measurements
A: Number of Collected Samples < 32
B: Push-Button Pressed
C: 32 Samples Collected
Collect A2
Samples Collect A3 Samples
B
AAA A
B B
B
Display Measurement
and Check Measurement Mode
C
C C C
Collect A1
Samples Collect A4 Samples
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DRV5055EVM
3 Hardware
The DRV5055 is a linear Hall effect magnetic-sense solution that provides ease of use and high
performance. The DRV5055EVM is intended to provide basic functional evaluation of this device family.
The fixture layout is not intended to be a model for the target circuit, nor is it laid out for electromagnetic
compatibility (EMC) testing. The DRV5055EVM consists of one PCB with each of the gain variants of the
DRV5055. The EVM kit also provides a USB cable for quick power-up, as well as a magnet for quick
qualitative assessment of the DRV5055 variants performance.
3.1 Features
The layout of the DRV5055EVM printed circuit board (PCB) is designed to provide the following features:
• Evaluation of all gain options for the DRV5055
• Easily access device pins through test points
• Easily read voltage, mT, and microcontroller ADC memory values from the onboard LCD
• Toggle between devices with a press of the Device Select Switch, push-button S1.
See the links in Table 3 for comprehensive information about the DRV5055 family of devices.
3.2 Theory of Operation
The DRV5055EVM is a plug and play board, requiring only that the user supply power and provide a
magnetic stimulus after the initial calibration. The ease of operation can be attributed to the onboard
microcontroller. The source code for the microcontroller is available on the DRV5055 web folder under
Tools and Software. The basic operation of the microcontroller source code is outlined in the state
machine diagram shown in Figure 1. Upon receiving power, the microcontroller registers are set up to
properly interact with the other devices on the board. Then, a preliminary measurement of each DRV5055
gain variant is taken. It is imperative that the magnetic stimulus of interest is not present at this time, as
this measurement sets the 0 point in the mT measurement display. After calibration is complete, the LED
for the DRV5055A1 powers on by default. At this point, the EVM microcontroller begins continuously
sampling the DRV5055A1. Pressing push-button S1 results in the EVM sampling the next adjacent device.
After every 32 samples are taken, the device calculates an average, and processes the data to fit the
format selected by the slider switch K1.
Figure 1. Microcontroller Source Code Operation

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3.3 Circuitry
This section summarizes the DRV5055EVM components.
3.3.1 C1, J1, R1, and R2
J1 serves as the connector for an external MSP-FET Flash Emulation Tool to connect to the board.
C1, R1, and R2 are the additional passives required for the emulation tool to effectively communicate with
the MSP430FR4133 for the purposes of programming and debugging.
The MSPFETFlash can be obtained separately at http://www.ti.com/tool/MSP-FET. Alternatively, if an
MSP430FR4133 Launchpad is already available, that board can be configured to program the
DRV5055EVM microcontroller.
3.3.2 C2-C5, C29, C32, C36, C43
C2-C5 are the 1-µF supply bypass capacitors for the DRV5055.
C29, C32, C36, and C43 are the supply bypass capacitors for the MSP430FR4133, SN74LVC1G17,
LP5907MFX-3.3, TCA9535, and TS5A23159, respectively.
3.3.3 C8--C11, R3-R6
These components are used to form low-pass filters on the outputs of all of the DRV5055Aydevices,
where y= 1 to 4. The capacitors also allow the ADC input node to remain relatively stable throughout the
ADC sample transition.
3.3.4 J2
J2 is the male USB connector that allows the device to be powered through a PC USB port or USB
adapter.
3.3.5 K1, R47, R48, R49
K1 serves as a slide switch that pulls GPIO extender TCA9535 GPIO pins P00, P01, and P02 either to
GND or to 3.3-V VCC through pullup resistors R47, R48, and R49.
3.3.6 R16 and S1
R16 is a pullup resistor that ties push-button switch S1 to the 3.3-V VCC when S1 is not pushed.
3.3.7 C55, R51, and U14
C55 and R51 form a low-pass filter with the push-button stimulus, and are used with SN74LVC1G17
Schmitt Trigger (U14) to mitigate the effects of debounce from the push-button.
3.3.8 U9-U12
U9-U12 Correspond to each of the gain variants of the DRV5055 device. The gains are arranged highest
to lowest with U9 being the A4 variant while U12 is the A1 variant.
3.3.9 U16 C33, C35, R19, R50
U16 is the LP590MFX-3.3 low dropout regulator (LDO) that converts the input voltage from the USB
power source to a stable 3.3 V.

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3.3.10 U17, R28-R34, R40-R42, D13-D16
U17 is the TCA9535 GPIO extender. The MSP430FR4133 and TCA9535 communicate through the I2C
protocol, which requires pullup resistors R32 and R33. The TCA9535 is the slave device, whereas the
MSP430FR4133 is the master device.
U16 communicates the K1 state on pins P00, P01, and P02 to the MSP430FR4133.
Pins P03-P07 and P10-P16 are defined as outputs for toggling LEDs D5-D16 according to commands
from the MSP430FR4133.
Resistors R28-R31 are 10-kΩresistors meant to limit current through LEDs D13-D16 when a
corresponding TCA9535 output pin is toggled low.
Resistors R40-R43 are for power saving when any the corresponding TCA9535 output pin is high.
By default, TCA9535 GPIOs are all disabled and thus to enable these GPIOs the 10-kΩ, R34, ties pin 1 to
3.3-V VCC.
3.3.11 U19
U19 is the VI-401-DP-RC-S LCD that displays the measurements of a selected device for a given selected
measurement format.
3.3.12 M1, C49-C42
M1 is the MSP430FR4133 that samples the analog output from the DRV5055 and converts those outputs
into a bit pattern that conveys the correct output measurement on the LCD display. M1 uses capacitors
C49-C42 to convert the input voltage to a boosted square wave output signal capable of driving the LCD
display. M1 also gathers information from push-button S1, U17, the signal fed through U20, and signals
from U5-U12. M1 also commands U17 to turn on the LEDs of interest.
3.3.13 U21
U21 is a switch that serves as a GPIO extender to provide on additional pin with a voltage signal suitable
for the LCD.

VCC VCC VCC VCC
GND GND GNDGND
55A1 55A2
55A3 55A4
16V
1uF
C2
16V
1uF
C3
16V
1uF
C4
16V
1uF
C5
GNDGND
GND GND
100
R3
100
R4
100
R5
100
R6
35V
1.5uF
C8
35V
1.5uF
C9
35V
1.5uF
C10
35V
1.5uF
C11
TP2
DNP
TP3
DNP
TP4
DNP
TP5
DNP
VCC
1OUT 3
GND 2
PDRV5055A1ELPGQ1
U12
VCC
1OUT 3
GND 2
PDRV5055A2ELPGQ1
U11
VCC
1OUT 3
GND 2
PDRV5055A3ELPGQ1
U10
VCC
1OUT 3
GND 2
PDRV5055A4ELPGQ1
U9
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DRV5055EVM
4 Schematics, PCB Layout, and Bill of Materials
NOTE: Board layouts are not to scale. These figures are intended to show how the board is laid out. The figures are not intended to be used for
manufacturing DRV5055EVM PCBs.
4.1 Schematics
Figure 2 to Figure 6 show the schematic of the DRV5055EVM. Figure 2 pertains to DRV5055 devices that the DRV5055EVM is meant to demo.
Figure 3 shows the schematic of the microcontroller that does all the processing of the measurement data and user input, as well as the LCD that
the microcontroller drives. Figure 4 displays the circuitry for user inputs and programming inputs. Figure 5 corresponds to the GPIO extender used
for turning on the respective LED indicators and reading the status of the slider switch. Figure 6 is the schematic of the power stage used to
transform the 5-V USB input to a 3.3-V supply rail for all other onboard devices.
Figure 2. Schematic for DRV5055 Devices Gain Variants A1 to A4 (Right to Left)

VCC
56A1
56A2
56A3
56A4
55A1
55A2
55A3
55A4
GND
TEST
RST
1C
1A
1B P7.5/L5 1
P7.4/L4 2
P7.3/L3 3
P7.2/L2 4
P7.1/L1 5
P7.0/L0 6
P4.7/R13 7
P4.6/R23 8
P4.5/R33 9
P4.4/LCDCAP1 10
P4.3/LCDCAP0 11
P4.2/XOUT 12
P4.1/XIN 13
DVSS 14
DVCC
15
RST/NMI/SBWTDIO 16
TEST/SBWTCK 17
P4.0/TA1.1 18
P8.3/TA1.2 19
P8.2/TA1CLK 20
P1.7/TA0.1/TDO/A7
21 P1.6/TA0.2/TDI/TCLK/A6
22 P1.5/TA0CLK/TMS/A5
23 P1.4/MCLK/TCK/A4/VREF+
24 P1.3/UCA0STE/A3
25 P1.2/UCA0CLK/A2
26 P1.1/UCA0RXD/UCA0SOMI/A1/Veref+
27 P1.0/UCA0TXD/UCA0SIMO/A0/Veref-
28
P5.5/L37
29 P5.4/L36
30 P5.3/UCB0SOMI/UCB0SCL/L35
31 P5.2/UCB0SIMO/UCB0SDA/L34
32 P5.1/UCB0CLK/L33
33 P5.0/UCB0STE/L32
34
P2.7/L31
35 P2.6/L30
36 P2.5/L29
37 P2.4/L28
38 P2.3/L27
39 P2.2/L26
40 P2.1/L25
41 P2.0/L24
42
P6.5/L21
43 P6.4/L20
44 P6.3/L19
45 P6.2/L18
46 P6.1/L17
47 P6.0/L16
48
P3.7/L15 49
P3.6/L14 50
P3.5/L13 51
P3.4/L12 52
P3.3/L11 53
P3.2/L10 54
P3.1/L9 55
P3.0/L8 56
MSP430FR4133IG56R
M1
1E
2B
BUTTON
2A
2C
2F
2D
2G
2E
3B
3A
3C
3F
3D
3G
3E
4B
DP3
4A
4C
4F
4D
4G
4E
COM
10V
0.1uF
C39
10V
0.1uF
C40
GND GND
GND
10V
0.1uF
C41
GND
SDA
SCL
COM1
1
NC
2
NC
3
NC
4
4E
5
4D
6
4C
7
DP3
8
3E
9
3D
10
3C
11
DP2
12
2E
13
2D
14
2C
15
DP1
16
1E
17
1D
18
1C
19
1B
20 1A 21
1F 22
1G 23
2B 24
3G 32
NC 33
4B 34
4A 35
4F 36
4G 37
NC 38
2A 25
2F 26
2G 27
L28
3B 29
3A 30
3F 31
NC 39
COM1 40
U19
VI-401-DP-RC-S
DP3
4C
4D
4E
DP2
3C
3D
3E
DP1
2C
2D
2E
1B
1C
1D
1E
COM
4G
4F
4A
4B
3G
3F
3A
3B
2G
2F
2A
2B
1G
1F
1A
COM
COM
1G
1D
1F
10µF
C29
10V
0.1uF
C42
VCC
DP0
DP0
10V
0.1uF
C43
IN1
1NO1 2
GND 3
NO2 4
IN2
5
COM2
6NC2 7
V+
8
NC1 9
COM1
10
TS5A23159DGSR
U21
GND
GND
COM
DP2
DP1
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Figure 3. Schematic of LCD for Measurement Display, Microcontroller for Data Processing, and Switch for Expanding GPIO Functionality

VCC
5 4 1 2 3
J1
RST
TEST
BUTTON
VCC
GND
10.0k
R16
10V
0.1uF
C32
GND
GND
VCC
S1
42
SN74LVC1G17DCKT
U14A
VCC
5GND 3
NC
1
U14B
PCT_FS
VOLT
MT
2 1 3 4
S1 S1
S2
S2
K1
10.0k
R47
10.0k
R48
10.0k
R49
GND
VCC
VCC
VCC
2200pF
C1
100
R51
35V
1.5uF
C44
GND GND
47k
R1
0
R2
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Figure 4. Schematic of Push-Button User Input, Slider Switch User Input, and Programming Input

GND
GND
GND
VCC
VIN
1
GND 2
EN
3
N/C
4
VOUT 5
LP5907MFX-3.3/NOPB
U16
16V
1uF
C35
TP1
USB Power
DNP
GND
GND
GND
VBUS 1
D- 2
D+ 3
GND 4
5
6
J2
0.5
R50
10µF
C33
0
R19
12
D13
12
D14
10.0k
R28
10.0k
R29
10.0k
R30
10.0k
R31
I5A1I5A2I5A3I5A4
VCC
12
D16
12
D15
10V
0.1uF
C36
GND
VCC
GND
INT
1
A1
2
A2
3
P00 4
P01 5
P02 6
P03 7
P04 8
P05 9
P06 10
P07 11
GND 12
P10 13
P11 14
P12 15
P13 16
P14 17
P15 18
P16 19
P17 20
A0
21
SCL
22
SDA
23
VCC
24
TCA9535PWR
U17
GND
10.0k
R33
10.0k
R32
VCC
SCL
SDA
10.0k
R34
I5A1
I5A2
I5A3
I5A4
I5A1
I5A2I5A3
I5A4
VCC
100k
R40
100k
R41
100k
R42
100k
R43
PCT_FS
VOLT
MT
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Figure 5. Schematic of LED and Indicators and Slider Switch Status Reader
Figure 6. Schematic of Supply Input and Power Conditioning

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4.2 PCB Layout
Figure 7 through Figure 10 illustrate the PCB layers of the DRV5055EVM.
Figure 7. Top Overlay
Figure 8. Top Layer
Figure 9. Bottom Overlay
Figure 10. Bottom Layer

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4.3 Bill of Materials
Table 4 provides the parts list for the DRV5055EVM.
Table 4. Bill of Materials
Designator Quantity Value Description Package Reference Part Number Manufacturer
C1 1 2200pF CAP, CERM, 2200 pF, 50 V,+/- 5%, C0G/NP0,
0603 0603 GRM1885C1H222JA0 1D MuRata
C2, C3, C4, C5, C35, C38 6 1uF CAP, CERM, 1 uF, 16 V, +/- 10%, X7R, 0603 0603 C1608X7R1C105K080
AC TDK
C8, C9, C10, C11, C44 5 1.5uF CAP, CERM, 1.5 uF, 35 V, +/- 10%, X5R, 0603 0603 C1608X5R1V155K080
AC TDK
C29, C33 2 10uF CAP, CERM, 10 µF, 16 V,+/- 10%, X7R, 0805 0805 CL21B106KOQNNNE Samsung Electro-
Mechanics
C32, C36, C39, C40, C41, C42,
C43 7 0.1uF CAP, CERM, 0.1 uF, 10 V, +/- 10%, X7R, 0603 0603 0603ZC104KAT2A AVX
D13, D14, D15, D16 4 Green LED, Green, SMD LED_0805 APT2012LZGCK Kingbright
H1 1 Magnet Neodymium Iron Boron (NdFeB) N35
0.187" Dia x 1.000" H (4.76mm x 25.4mm) 8182 Radial Magnet, Inc.
H2 1 USB 1.1 Cable A Female to A Male 5.90'
(1.80m) Shielded AK669-18 Assmann WSW Components
H9, H10, H11, H12 4 Bumpon, Hemisphere, 0.44 X 0.20, Clear Transparent Bumpon SJ-5303 (CLEAR) 3M
J1 1 Header, 100mil, 5x1, Gold, TH Header, 100mil, 5x1, TH HTSW-105-07-G-S Samtec
J2 1 Connector, Plug, USB Type A, R/A, Top Mount
SMT USB Type A right angle 48037-1000 Molex
K1 1 Switch, Slide, SP3T, On-On-On, 3 Pos, 0.3A, 30
VDC, TH 12.6x4.3mm SS-13D16-VG 4 PA C&K Components
M1 1 16 MHz Ultra-Low-Power Microcontroller with 16
KB FRAM, 2 KB SRAM, 60 IO, 10 ch ADC10,
LCD, IR Logic, DGG0056A (TSSOP-56)
DGG0056A MSP430FR4133IG56R Texas Instruments
R1 1 47k RES, 47 k, 5%, 0.1 W, 0603 0603 RC0603JR-0747KL Yageo America
R2, R19 2 0 RES, 0, 5%, 0.1 W, 0603 0603 ERJ-3GEY0R00V Panasonic
R3, R4, R5, R6, R51 5 100 RES, 100, 1%, 0.1 W, AEC-Q200 Grade 0, 0603 0603 ERJ-3EKF1000V Panasonic
R16, R28, R29, R30, R31, R32,
R33, R34, R47, R48, R49 11 10.0k RES, 10.0 k, 0.1%, 0.1 W, 0603 0603 RG1608P-103-B-T5 Susumu Co Ltd
R40, R41, R42, R43 4 100k RES, 100 k, 5%, 0.1 W, AEC-Q200 Grade 0,
0603 0603 ERJ-3GEYJ104V Panasonic
R50 1 0.5 RES, 0.5, 1%, 0.125 W, 0603 0603 CSR0603FKR500 Susumu Co Ltd
U9 1 Automotive Ratiometric Linear Hall Effect
Sensor, LPG0003A (TO-92-3) LPG0003A PDRV5055A4ELPGQ1 Texas Instruments
U10 1 Automotive Ratiometric Linear Hall Effect
Sensor, LPG0003A (TO-92-3) LPG0003A PDRV5055A3ELPGQ1 Texas Instruments

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DRV5055EVM
Table 4. Bill of Materials (continued)
Designator Quantity Value Description Package Reference Part Number Manufacturer
U11 1 Automotive Unipolar Ratiometric Linear Hall
Effect Sensor, LPG0003A (TO-92-3) LPG0003A PDRV5055A2ELPGQ1 Texas Instruments
U12 1 Automotive Ratiometric Linear Hall Effect
Sensor, LPG0003A (TO-92-3) LPG0003A PDRV5055A1ELPGQ1 Texas Instruments
U14 1 Single Schmitt-Trigger Buffer, DCK0005A,
SMALL T&R DCK0005A SN74LVC1G17DCKT Texas Instruments
U16 1 250-mA Ultra-Low-Noise, Low-IQ LDO,
DBV0005A (SOT-23-5) DBV0005A LP5907MFX-3.3/NOPB Texas Instruments
U17 1 Remote 16-Bit I2C and SMBus, Low-Power I/O
Expander with Interrupt Output and Config
Register, 1.65 to 5.5 V, -40 to 85 degC, 24-pin
TSSOP (PW), Green (RoHS & no Sb/Br)
PW0024A TCA9535PWR Texas Instruments
U19 1 LCD 7-Segment, TH 50.8x22.86mm VI-401-DP-RC-S Varitronix
U21 1 1-Ohm 5-V/3.3-V 2-Channel SPDT Switch,
DGS0010A (VSSOP-10) DGS0010A TS5A23159DGSR Texas Instruments
S1 1 Switch, Tactile, SPST-NO, 0.02A, 15V, TH 6.0x5.0x6mm EVQ-21405R Panasonic

www.ti.com Revision History
15
SLYU047A–April 2018–Revised May 2018
Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated
Revision History
Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Original (April 2018) to A Revision .......................................................................................................... Page
• Changed front-page image from drawing to photo ................................................................................... 1
• Added row for magnet to Table 2 ....................................................................................................... 3
• Added two new rows to BOM table for designators H1 and H2................................................................... 13

STANDARD TERMS FOR EVALUATION MODULES
1. Delivery: TI delivers TI evaluation boards, kits, or modules, including any accompanying demonstration software, components, and/or
documentation which may be provided together or separately (collectively, an “EVM” or “EVMs”) to the User (“User”) in accordance
with the terms set forth herein. User's acceptance of the EVM is expressly subject to the following terms.
1.1 EVMs are intended solely for product or software developers for use in a research and development setting to facilitate feasibility
evaluation, experimentation, or scientific analysis of TI semiconductors products. EVMs have no direct function and are not
finished products. EVMs shall not be directly or indirectly assembled as a part or subassembly in any finished product. For
clarification, any software or software tools provided with the EVM (“Software”) shall not be subject to the terms and conditions
set forth herein but rather shall be subject to the applicable terms that accompany such Software
1.2 EVMs are not intended for consumer or household use. EVMs may not be sold, sublicensed, leased, rented, loaned, assigned,
or otherwise distributed for commercial purposes by Users, in whole or in part, or used in any finished product or production
system.
2Limited Warranty and Related Remedies/Disclaimers:
2.1 These terms do not apply to Software. The warranty, if any, for Software is covered in the applicable Software License
Agreement.
2.2 TI warrants that the TI EVM will conform to TI's published specifications for ninety (90) days after the date TI delivers such EVM
to User. Notwithstanding the foregoing, TI shall not be liable for a nonconforming EVM if (a) the nonconformity was caused by
neglect, misuse or mistreatment by an entity other than TI, including improper installation or testing, or for any EVMs that have
been altered or modified in any way by an entity other 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
techniques are used to the extent TI deems necessary. TI does not test all parameters of each EVM.
User's claims against TI under this Section 2 are void if User fails to notify TI of any apparent defects in the EVMs within ten (10)
business days after delivery, or of any hidden defects with ten (10) business days after the defect has been detected.
2.3 TI's sole liability shall be at its option to repair or replace EVMs that fail to conform to the warranty set forth above, or credit
User's account for such EVM. TI's liability under this warranty shall be limited to EVMs that are returned during the warranty
period to the address designated by TI and that are determined by TI not to conform to such warranty. If TI elects to repair or
replace such EVM, TI shall have a reasonable time to repair such EVM or provide replacements. Repaired EVMs shall be
warranted for the remainder of the original warranty period. Replaced EVMs shall be warranted for a new full ninety (90) day
warranty period.
3Regulatory Notices:
3.1 United States
3.1.1 Notice applicable to EVMs not FCC-Approved:
FCC NOTICE: This kit is designed to allow product developers to evaluate electronic components, circuitry, or software
associated with the kit to determine whether to incorporate such items in a finished product and software developers to write
software applications for use with the end product. This kit is not a finished product and when assembled may not be resold or
otherwise marketed unless all required FCC equipment authorizations are first obtained. Operation is subject to the condition
that this product not cause harmful interference to licensed radio stations and that this product accept harmful interference.
Unless the assembled kit is designed to operate under part 15, part 18 or part 95 of this chapter, the operator of the kit must
operate under the authority of an FCC license holder or must secure an experimental authorization under part 5 of this chapter.
3.1.2 For EVMs annotated as FCC – FEDERAL COMMUNICATIONS COMMISSION Part 15 Compliant:
CAUTION
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not
cause harmful interference, and (2) this device must accept any interference received, including interference that may cause
undesired operation.
Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to
operate the equipment.
FCC Interference Statement for Class A EVM devices
NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of
the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to
correct the interference at his own expense.

FCC Interference Statement for Class B EVM devices
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of
the FCC Rules. 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 installed and used in accordance
with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which
can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more
of the following measures:
•Reorient or relocate the receiving antenna.
•Increase the separation between the equipment and receiver.
•Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
•Consult the dealer or an experienced radio/TV technician for help.
3.2 Canada
3.2.1 For EVMs issued with an Industry Canada Certificate of Conformance to RSS-210 or RSS-247
Concerning EVMs Including Radio Transmitters:
This device complies with Industry Canada license-exempt RSSs. Operation is subject to the following two conditions:
(1) this device may not cause interference, and (2) this device must accept any interference, including interference that may
cause undesired operation of the device.
Concernant les EVMs avec appareils radio:
Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation
est autorisée aux deux conditions suivantes: (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit
accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.
Concerning EVMs Including Detachable Antennas:
Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser)
gain approved for the transmitter by Industry Canada. To reduce potential radio interference to other users, the antenna type
and its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for
successful communication. This radio transmitter has been approved by Industry Canada to operate with the antenna types
listed in the user guide with the maximum permissible gain and required antenna impedance for each antenna type indicated.
Antenna types not included in this list, having a gain greater than the maximum gain indicated for that type, are strictly prohibited
for use with this device.
Concernant les EVMs avec antennes détachables
Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne d'un type et
d'un gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada. Dans le but de réduire les risques de brouillage
radioélectrique à l'intention des autres utilisateurs, il faut choisir le type d'antenne et son gain de sorte que la puissance isotrope
rayonnée équivalente (p.i.r.e.) ne dépasse pas l'intensité nécessaire à l'établissement d'une communication satisfaisante. Le
présent émetteur radio a été approuvé par Industrie Canada pour fonctionner avec les types d'antenne énumérés dans le
manuel d’usage et ayant un gain admissible maximal et l'impédance requise pour chaque type d'antenne. Les types d'antenne
non inclus dans cette liste, ou dont le gain est supérieur au gain maximal indiqué, sont strictement interdits pour l'exploitation de
l'émetteur
3.3 Japan
3.3.1 Notice for EVMs delivered in Japan: Please see http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_01.page 日本国内に
輸入される評価用キット、ボードについては、次のところをご覧ください。
http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_01.page
3.3.2 Notice for Users of EVMs Considered “Radio Frequency Products” in Japan: EVMs entering Japan may not be certified
by TI as conforming to Technical Regulations of Radio Law of Japan.
If User uses EVMs in Japan, not certified to Technical Regulations of Radio Law of Japan, User is required to follow the
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 should be verified by User):
1. Use EVMs in a shielded room or any other test facility as defined in the notification #173 issued by Ministry of Internal
Affairs and Communications on March 28, 2006, based on Sub-section 1.1 of Article 6 of the Ministry’s Rule for
Enforcement of Radio Law of Japan,
2. Use EVMs only after User obtains the license of Test Radio Station as provided in Radio Law of Japan with respect to
EVMs, or
3. Use of EVMs only after User obtains the Technical Regulations Conformity Certification as provided in Radio Law of Japan
with respect to EVMs. Also, do not transfer EVMs, unless User gives the same notice above to the transferee. Please note
that if User does not follow the instructions above, User will be subject to penalties of Radio Law of Japan.

【無線電波を送信する製品の開発キットをお使いになる際の注意事項】 開発キットの中には技術基準適合証明を受けて
いないものがあります。 技術適合証明を受けていないもののご使用に際しては、電波法遵守のため、以下のいずれかの
措置を取っていただく必要がありますのでご注意ください。
1. 電波法施行規則第6条第1項第1号に基づく平成18年3月28日総務省告示第173号で定められた電波暗室等の試験設備でご使用
いただく。
2. 実験局の免許を取得後ご使用いただく。
3. 技術基準適合証明を取得後ご使用いただく。
なお、本製品は、上記の「ご使用にあたっての注意」を譲渡先、移転先に通知しない限り、譲渡、移転できないものとします。
上記を遵守頂けない場合は、電波法の罰則が適用される可能性があることをご留意ください。 日本テキサス・イ
ンスツルメンツ株式会社
東京都新宿区西新宿６丁目２４番１号
西新宿三井ビル
3.3.3 Notice for EVMs for Power Line Communication: Please see http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page
電力線搬送波通信についての開発キットをお使いになる際の注意事項については、次のところをご覧ください。http:/
/www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page
3.4 European Union
3.4.1 For EVMs subject to EU Directive 2014/30/EU (Electromagnetic Compatibility Directive):
This is a class A product intended for use in environments other than domestic environments that are connected to a
low-voltage power-supply network that supplies buildings used for domestic purposes. In a domestic environment this
product may cause radio interference in which case the user may be required to take adequate measures.
4EVM Use Restrictions and Warnings:
4.1 EVMS ARE NOT FOR USE IN FUNCTIONAL SAFETY AND/OR SAFETY CRITICAL EVALUATIONS, INCLUDING BUT NOT
LIMITED TO EVALUATIONS OF LIFE SUPPORT APPLICATIONS.
4.2 User must read and apply the user guide and other available documentation provided by TI regarding the EVM prior to handling
or using the EVM, including without limitation any warning or restriction notices. The notices contain important safety information
related to, for example, temperatures and voltages.
4.3 Safety-Related Warnings and Restrictions:
4.3.1 User shall operate the EVM within TI’s recommended specifications and environmental considerations stated in the user
guide, other available documentation provided by TI, and any other applicable requirements and employ reasonable and
customary safeguards. Exceeding the specified performance ratings and specifications (including but not limited to input
and output voltage, current, power, and environmental ranges) for the EVM may cause personal injury or death, or
property damage. If there are questions concerning performance ratings and specifications, User should contact a TI
field representative prior to connecting interface electronics including input power and intended loads. Any loads applied
outside of the specified output range may also result in unintended and/or inaccurate operation and/or possible
permanent damage to the EVM and/or interface electronics. Please consult the EVM user guide prior to connecting any
load to the EVM output. If there is uncertainty as to the load specification, please contact a TI field representative.
During normal operation, even with the inputs and outputs kept within the specified allowable ranges, some circuit
components may have elevated case temperatures. These components include but are not limited to linear regulators,
switching transistors, pass transistors, current sense resistors, and heat sinks, which can be identified using the
information in the associated documentation. When working with the EVM, please be aware that the EVM may become
very warm.
4.3.2 EVMs are intended solely for use by technically qualified, professional electronics experts who are familiar with the
dangers and application risks associated with handling electrical mechanical components, systems, and subsystems.
User assumes all responsibility and liability for proper and safe handling and use of the EVM by User or its employees,
affiliates, contractors or designees. User assumes all responsibility and liability to ensure that 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 electrical shock hazard. User assumes all responsibility and
liability for any improper or unsafe handling or use of the EVM by User or its employees, affiliates, contractors or
designees.
4.4 User assumes all responsibility and liability to determine whether the EVM is subject to any applicable international, federal,
state, or local laws and regulations related to User’s handling and use of the EVM and, if applicable, User assumes all
responsibility and liability for compliance in all respects with such laws and regulations. User assumes all responsibility and
liability for proper disposal and recycling of the EVM consistent with all applicable international, federal, state, and local
requirements.
5. Accuracy of Information: To the extent TI provides information on the availability and function of EVMs, TI attempts to be as accurate
as possible. However, TI does not warrant the accuracy of EVM descriptions, EVM availability or other information on its websites as
accurate, complete, reliable, current, or error-free.

6. Disclaimers:
6.1 EXCEPT AS SET FORTH ABOVE, EVMS AND ANY MATERIALS PROVIDED WITH THE EVM (INCLUDING, BUT NOT
LIMITED TO, REFERENCE DESIGNS AND THE DESIGN OF THE EVM ITSELF) ARE PROVIDED "AS IS" AND "WITH ALL
FAULTS." TI DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, REGARDING SUCH ITEMS, INCLUDING BUT
NOT LIMITED TO ANY EPIDEMIC FAILURE WARRANTY OR IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS
FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT OF ANY THIRD PARTY PATENTS, COPYRIGHTS, TRADE
SECRETS OR OTHER INTELLECTUAL PROPERTY RIGHTS.
6.2 EXCEPT FOR THE LIMITED RIGHT TO USE THE EVM SET FORTH HEREIN, NOTHING IN THESE TERMS SHALL BE
CONSTRUED AS GRANTING OR CONFERRING ANY RIGHTS BY LICENSE, PATENT, OR ANY OTHER INDUSTRIAL OR
INTELLECTUAL PROPERTY RIGHT OF TI, ITS SUPPLIERS/LICENSORS OR ANY OTHER THIRD PARTY, TO USE THE
EVM IN ANY FINISHED END-USER OR READY-TO-USE FINAL PRODUCT, OR FOR ANY INVENTION, DISCOVERY OR
IMPROVEMENT, REGARDLESS OF WHEN MADE, CONCEIVED OR ACQUIRED.
7. USER'S INDEMNITY OBLIGATIONS AND REPRESENTATIONS. USER WILL DEFEND, INDEMNIFY AND HOLD TI, ITS
LICENSORS AND THEIR REPRESENTATIVES HARMLESS FROM AND AGAINST ANY AND ALL CLAIMS, DAMAGES, LOSSES,
EXPENSES, COSTS AND LIABILITIES (COLLECTIVELY, "CLAIMS") ARISING OUT OF OR IN CONNECTION WITH ANY
HANDLING OR USE OF THE EVM THAT IS NOT IN ACCORDANCE WITH THESE TERMS. THIS OBLIGATION SHALL APPLY
WHETHER CLAIMS ARISE UNDER STATUTE, REGULATION, OR THE LAW OF TORT, CONTRACT OR ANY OTHER LEGAL
THEORY, AND EVEN IF THE EVM FAILS TO PERFORM AS DESCRIBED OR EXPECTED.
8. Limitations on Damages and Liability:
8.1 General Limitations. IN NO EVENT SHALL TI BE LIABLE FOR ANY SPECIAL, COLLATERAL, INDIRECT, PUNITIVE,
INCIDENTAL, CONSEQUENTIAL, OR EXEMPLARY DAMAGES IN CONNECTION WITH OR ARISING OUT OF THESE
TERMS OR THE USE OF THE EVMS , REGARDLESS OF WHETHER TI HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES. EXCLUDED DAMAGES INCLUDE, BUT ARE NOT LIMITED TO, COST OF REMOVAL OR
REINSTALLATION, ANCILLARY COSTS TO THE PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, RETESTING,
OUTSIDE COMPUTER TIME, LABOR COSTS, LOSS OF GOODWILL, LOSS OF PROFITS, LOSS OF SAVINGS, LOSS OF
USE, LOSS OF DATA, OR BUSINESS INTERRUPTION. NO CLAIM, SUIT OR ACTION SHALL BE BROUGHT AGAINST TI
MORE THAN TWELVE (12) MONTHS AFTER THE EVENT THAT GAVE RISE TO THE CAUSE OF ACTION HAS
OCCURRED.
8.2 Specific Limitations. IN NO EVENT SHALL TI'S AGGREGATE LIABILITY FROM ANY USE OF AN EVM PROVIDED
HEREUNDER, INCLUDING FROM ANY WARRANTY, INDEMITY OR OTHER OBLIGATION ARISING OUT OF OR IN
CONNECTION WITH THESE TERMS, , EXCEED THE TOTAL AMOUNT PAID TO TI BY USER FOR THE PARTICULAR
EVM(S) AT ISSUE DURING THE PRIOR TWELVE (12) MONTHS WITH RESPECT TO WHICH LOSSES OR 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. Furthermore, no return of EVM(s)
will be accepted if the package has been opened and no return of the EVM(s) will be accepted if they are damaged or otherwise not in
a resalable condition. If User feels it has been incorrectly charged for the EVM(s) it ordered or that delivery violates the applicable
order, User should contact TI. All refunds will be made in full within thirty (30) working days from the return of the components(s),
excluding any postage or packaging costs.
10. Governing Law: These terms and conditions shall be governed by and interpreted in accordance with the laws of the State of Texas,
without reference to conflict-of-laws principles. User agrees that non-exclusive jurisdiction for any dispute arising out of or relating to
these terms and conditions lies within courts located in the State of Texas and consents to venue in Dallas County, Texas.
Notwithstanding the foregoing, any judgment may be enforced in any United States or foreign court, and TI may seek injunctive relief
in any United States or foreign court.
Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265
Copyright © 2018, Texas Instruments Incorporated

IMPORTANT NOTICE FOR TI DESIGN INFORMATION AND RESOURCES
Texas Instruments Incorporated (‘TI”) technical, application or other design advice, services or information, including, but not limited to,
reference designs and materials relating to evaluation modules, (collectively, “TI Resources”) are intended to assist designers who are
developing applications that incorporate TI products; by downloading, accessing or using any particular TI Resource in any way, you
(individually or, if you are acting on behalf of a company, your company) agree to use it solely for this purpose and subject to the terms of
this Notice.
TI’s provision of TI Resources does not expand or otherwise alter TI’s applicable published warranties or warranty disclaimers for TI
products, and no additional obligations or liabilities arise from TI providing such TI Resources. TI reserves the right to make corrections,
enhancements, improvements and other changes to its TI Resources.
You understand and agree that you remain responsible for using your independent analysis, evaluation and judgment in designing your
applications and that you have full and exclusive responsibility to assure the safety of your applications and compliance of your applications
(and of all TI products used in or for your applications) with all applicable regulations, laws and other applicable requirements. You
represent that, with respect to your applications, you have all the necessary expertise to create and implement safeguards that (1)
anticipate dangerous consequences of failures, (2) monitor failures and their consequences, and (3) lessen the likelihood of failures that
might cause harm and take appropriate actions. You agree that prior to using or distributing any applications that include TI products, you
will thoroughly test such applications and the functionality of such TI products as used in such applications. TI has not conducted any
testing other than that specifically described in the published documentation for a particular TI Resource.
You are authorized to use, copy and modify any individual TI Resource only in connection with the development of applications that include
the TI product(s) identified in such TI Resource. NO OTHER LICENSE, EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE TO
ANY OTHER TI INTELLECTUAL PROPERTY RIGHT, AND NO LICENSE TO ANY TECHNOLOGY OR INTELLECTUAL PROPERTY
RIGHT OF TI OR ANY THIRD PARTY IS GRANTED HEREIN, including but not limited to any patent right, copyright, mask work right, or
other intellectual property right relating to any combination, machine, or process in which TI products or services are used. Information
regarding or referencing third-party products or services does not constitute a license to use such products or services, or a warranty or
endorsement thereof. Use of TI Resources may require a license from a third party under the patents or other intellectual property of the
third party, or a license from TI under the patents or other intellectual property of TI.
TI RESOURCES ARE PROVIDED “AS IS” AND WITH ALL FAULTS. TI DISCLAIMS ALL OTHER WARRANTIES OR
REPRESENTATIONS, EXPRESS OR IMPLIED, REGARDING TI RESOURCES OR USE THEREOF, INCLUDING BUT NOT LIMITED TO
ACCURACY OR COMPLETENESS, TITLE, ANY EPIDEMIC FAILURE WARRANTY AND ANY IMPLIED WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT OF ANY THIRD PARTY INTELLECTUAL
PROPERTY RIGHTS.
TI SHALL NOT BE LIABLE FOR AND SHALL NOT DEFEND OR INDEMNIFY YOU AGAINST ANY CLAIM, INCLUDING BUT NOT
LIMITED TO ANY INFRINGEMENT CLAIM THAT RELATES TO OR IS BASED ON ANY COMBINATION OF PRODUCTS EVEN IF
DESCRIBED IN TI RESOURCES OR OTHERWISE. IN NO EVENT SHALL TI BE LIABLE FOR ANY ACTUAL, DIRECT, SPECIAL,
COLLATERAL, INDIRECT, PUNITIVE, INCIDENTAL, CONSEQUENTIAL OR EXEMPLARY DAMAGES IN CONNECTION WITH OR
ARISING OUT OF TI RESOURCES OR USE THEREOF, AND REGARDLESS OF WHETHER TI HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.
You agree to fully indemnify TI and its representatives against any damages, costs, losses, and/or liabilities arising out of your non-
compliance with the terms and provisions of this Notice.
This Notice applies to TI Resources. Additional terms apply to the use and purchase of certain types of materials, TI products and services.
These include; without limitation, TI’s standard terms for semiconductor products http://www.ti.com/sc/docs/stdterms.htm), evaluation
modules, and samples (http://www.ti.com/sc/docs/sampterms.htm).
Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265
Copyright © 2018, Texas Instruments Incorporated