Texas Instruments LMT01EVM User manual

User's Guide
SNIU027A–March 2015–Revised October 2015
LMT01EVM
The LMT01EVM allows users to evaluate the performance of the LMT01 2-pin digital temperature sensor.
The EVM comes in a USB stick form factor package with an onboard MSP430F5528 microcontroller that
interfaces with both the host computer and the LMT01 device. The EVM also comes with perforation at
two locations on the EVM board. The first perforation allows the user to connect wires, cable, or header to
both ends for remote temperature measurements. The second perforation allows the user to remove the
level shifter transistor (Q1) from the EVM board.
Contents
1 LMT01EVM Components................................................................................................... 2
2 Software Installation......................................................................................................... 3
3 LMT01 Setup and Operation............................................................................................... 7
4 Troubleshooting ............................................................................................................ 14
5 Board Layout................................................................................................................ 17
6 Schematic ................................................................................................................... 19
7 Bill of Materials ............................................................................................................. 20
List of Figures
1 LMT01EVM Evaluation Board.............................................................................................. 2
2 LMT01EVM Installation Directory.......................................................................................... 3
3 LMT01EVM Installation Finish ............................................................................................. 4
4 Firmware Revision Number ................................................................................................ 5
5 USB Firmware Upgrade Window .......................................................................................... 6
6 LMT01EVM Successful Connection with PC............................................................................. 7
7 LMT01EVM COM Port ...................................................................................................... 8
8 GRAPH Tab Page ........................................................................................................... 9
9 Comparator Threshold .................................................................................................... 10
10 SETUP Tab page........................................................................................................... 11
11 Temperature Change by Pressing Finger on LMT01.................................................................. 12
12 Breakout Slots and Exposed Pads....................................................................................... 13
13 LMT01EVM with LMT01 Device and Microcontroller Connected with Wires....................................... 14
14 Device Manager with COM Port Name.................................................................................. 15
15 Short a Wire at these Locations.......................................................................................... 16
16 USB Firmware Upgrade Window......................................................................................... 16
17 Top Assembly Layer....................................................................................................... 17
18 Top Layer Routing ......................................................................................................... 17
19 Power Layer Routing ...................................................................................................... 17
20 Ground Layer Routing ..................................................................................................... 18
21 Bottom Layer Routing...................................................................................................... 18
22 Bottom Assembly Layer ................................................................................................... 18
23 LMT01EVM Schematic .................................................................................................... 19
List of Tables
1 Device and Package Configurations ...................................................................................... 2
1
SNIU027A–March 2015–Revised October 2015 LMT01EVM
Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated

LMT01EVM Components www.ti.com
2 LMT01EVM Bill of Materials .............................................................................................. 20
1 LMT01EVM Components
Figure 1. LMT01EVM Evaluation Board
Table 1. Device and Package Configurations
Device IC Package
U4 LMT01 TO-92S
2LMT01EVM SNIU027A–March 2015–Revised October 2015
Submit Documentation Feedback
Copyright © 2015, Texas Instruments Incorporated

www.ti.com Software Installation
2 Software Installation
2.1 Graphical User Interface (GUI)
Install the LMT01EVM Software:
1. Go to the LMT01EVM webpage on the TI website: http://www.ti.com/tool/LMT01EVM. Scroll down to
the “Software” section and download the latest evaluation software.
2. Unzip the downloaded file into a known directory, and run the “setup.exe” file located in [Unzip
location]\LMT01EVM Installer-vx.x.x.xx\LMT01EVM Installer\Volume. Follow the pop-screen
instructions by clicking the “Next” button to install the software and accept the license agreement.
Figure 2. LMT01EVM Installation Directory
3. When the installation is finished, click “Finish” button.
3
SNIU027A–March 2015–Revised October 2015 LMT01EVM
Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated

Software Installation www.ti.com
Figure 3. LMT01EVM Installation Finish
4LMT01EVM SNIU027A–March 2015–Revised October 2015
Submit Documentation Feedback
Copyright © 2015, Texas Instruments Incorporated

www.ti.com Software Installation
2.2 Firmware
2.2.1 Firmware Check
Connect the LMT01EVM to a PC. Run the aforementioned LMT01EVM GUI. The version number of the
current firmware is shown on the upper right hand corner. A pop-up window will appear if the current
firmware on the EVM needs to be upgraded. If the pop-up window appears proceed to Section 2.2.2,
otherwise proceed to Section 4 .
Figure 4. Firmware Revision Number
5
SNIU027A–March 2015–Revised October 2015 LMT01EVM
Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated

Software Installation www.ti.com
2.2.2 Firmware Installation
1. Open the LMT01EVM GUI and go to the “Setup” tab. Click on the “Update Firmware” button. The
MSP430 USB Firmware Upgrade program will launch.
2. Click “Next” to proceed on the first prompt; read and accept the license agreement and click “Next” to
continue.
Figure 5. USB Firmware Upgrade Window
3. Make sure the MSP430 USB Firmware Upgrade Example window shows “Found 1 device”.
4. Enable the Select Firmware button and browse to open the downloaded firmware The firmware is
located at C:\\Program Files (x86)\Texas Instruments\LMT01EVM\Firmware\LMT01EVM-vx.xx.txt.
5. Click on the Upgrade Firmware button to program the LMT01EVM. Close and relaunch the application
when done.
6LMT01EVM SNIU027A–March 2015–Revised October 2015
Submit Documentation Feedback
Copyright © 2015, Texas Instruments Incorporated

www.ti.com LMT01 Setup and Operation
3 LMT01 Setup and Operation
3.1 Quickstart Guide
1. Connect the LMT01EVM to a USB port on a PC.
2. One red and one green LED should turn on and not blink when the EVM is initially plugged into the
PC. The red LED will blink if the power on reset tests on the MSP430 microcontroller fails on startup or
if the Test LED button is toggled. The green LED will blink when the Start Graph button is pressed.
3. Launch the LMT01EVM software by clicking on Start >> All Program >> Texas Instruments >>
LMT01EVM >> LMT01EVM. The LMT01EVM GUI should automatically connect to the appropriate
COM port. A successful connection will show “Connect Successful!” on the bottom of the GUI. If there
is a connection problem check in the Control Panel >> Device Manager >> Ports and verify if the
LMT01EVM has an established connection with the PC.
Figure 6. LMT01EVM Successful Connection with PC
7
SNIU027A–March 2015–Revised October 2015 LMT01EVM
Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated

LMT01 Setup and Operation www.ti.com
Figure 7. LMT01EVM COM Port
8LMT01EVM SNIU027A–March 2015–Revised October 2015
Submit Documentation Feedback
Copyright © 2015, Texas Instruments Incorporated

www.ti.com LMT01 Setup and Operation
4. GUI Descriptions
• GRAPH Tab
– Start Graph: Graph displays temperature or pulse count. One data point on the graph
corresponds to one temperature reading or pulse count in the time interval specified in the
“Graph Measure Period (ms)
– Stop Graph: Stops the graph from updating temperature or pulse count
– Current Value: Shows the current temperature or pulse count value
– Save Graph Data to File: Saves the pulse count data to a .csv file
– Y-Axis in °C: Toggle between the Y-Axis to be in temperature or # of pulse counts
– Graph Measure Period (ms): One measurement will be made every period specified in the box
Figure 8. GRAPH Tab Page
– LMT01 Silicon: Select between Pre-Final and Final silicon
– Comparator Reference: Select voltage reference for comparator threshold settings, default is
1.5V
9
SNIU027A–March 2015–Revised October 2015 LMT01EVM
Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated

LMT01 Setup and Operation www.ti.com
• SETUP Tab
– Serial Port: Manually select which serial port the LMT01EVM is connected to
– Firmware Revision: Check the firmware revision on the MSP430F5528 microcontroller
– Test LED: Toggle the red LED (D2) on and off
– One Shot Pulse Train Data: Single read shown in either pulse counts or temperature
– Select Pulse Train Measurement Method: Select from 12 methods of counting pulse with a
microcontroller. More details in Section 4.2
– Comparator Low to High Threshold: Set the comparator threshold to determine a logic high
level
– Comparator High to Low Threshold: Set the comparator threshold to determine a logic low
level
Figure 9. Comparator Threshold
10 LMT01EVM SNIU027A–March 2015–Revised October 2015
Submit Documentation Feedback
Copyright © 2015, Texas Instruments Incorporated

www.ti.com LMT01 Setup and Operation
Figure 10. SETUP Tab page
5. Start the GUI by pressing the “Start Graph” button on the GRAPH tab. The graph should show updated
temperature readings from the LMT01. Press a finger against the LMT01 part and observe the
temperature change.
11
SNIU027A–March 2015–Revised October 2015 LMT01EVM
Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated

LMT01 Setup and Operation www.ti.com
Figure 11. Temperature Change by Pressing Finger on LMT01
3.2 Pulse Train Measurement Methods
The LMT01EVM GUI comes with 12 methods of measuring the output pulse train from the LMT01. The
user can select which measurement method to use for their application. The nomenclatures of these
methods are described below:
• Transistor Mode: The LMT01 output is level shifted with a transistor to valid logic levels for the
MSP430
• Comparator Mode: The LMT01 output is fed into the integrate comparator of the MSP430 and
compared to a programmable voltage level to determine logic high and low
• Synchronous Mode: Power is applied to the LMT01 before a temperature measurement is taken and
removed immediately afterwards
• Asynchronous Mode: The MSP430 is turned on and temperature measurements can be taken any time
More informational about the 12 different modes and their implementations can be found in the LMT01
installation directory in the Firmware folder.
12 LMT01EVM SNIU027A–March 2015–Revised October 2015
Submit Documentation Feedback
Copyright © 2015, Texas Instruments Incorporated

www.ti.com LMT01 Setup and Operation
3.3 Remote Temperature Sensing with the LMT01EVM
The LMT01EVM comes with perforated slots where the user can snap apart the LMT01 device board,
transistor level shifter board, and microcontroller side of the EVM. The snapped off LMT01 device board
and transistor level shifter board can either be soldered with wires or headers back onto the LMT01EVM
for remote temperature measurements or the user can solder the boards onto their own PCB board.
Figure 12. Breakout Slots and Exposed Pads
13
SNIU027A–March 2015–Revised October 2015 LMT01EVM
Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated

Troubleshooting www.ti.com
Figure 13. LMT01EVM with LMT01 Device and Microcontroller Connected with Wires
4 Troubleshooting
4.1 LMT01EVM Driver Installation
The LMT01EVM Driver automatically installs during the GUI installation. However, the LMT01EVM board
may have been inserted into the USB port before the GUI installation. In such cases the EVM board could
be associated with another driver. Complete the following steps if you do not see LMT01EVM and instead
see MSP430-USB Example in the Device Manager window:
14 LMT01EVM SNIU027A–March 2015–Revised October 2015
Submit Documentation Feedback
Copyright © 2015, Texas Instruments Incorporated

www.ti.com Troubleshooting
Figure 14. Device Manager with COM Port Name
1. Open the Device Manager and find the MSP430-USB Example device
2. Right click it and choose Update Driver Software
3. Select Browse my Computer for driver installation. Navigate to the installation directory, select the
Firmware folder, and select the LMT01EVM_DRIVER.inf file
4. Close the setup window when the installation is complete. The Device Manager should now display
LMT01EVM followed by a COM port number.
4.2 LMT01EVM Hard Firmware Installation
During firmware flashing, the installation process could have been halted or quit unexpectedly. This
process could put the EVM board into an unknown state and the EVM cannot be found in the Device
Manager. To restore access to the EVM board complete the following steps:
15
SNIU027A–March 2015–Revised October 2015 LMT01EVM
Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated

Troubleshooting www.ti.com
Figure 15. Short a Wire at these Locations
Figure 16. USB Firmware Upgrade Window
1. Short the two points as shown in Figure 15
16 LMT01EVM SNIU027A–March 2015–Revised October 2015
Submit Documentation Feedback
Copyright © 2015, Texas Instruments Incorporated

www.ti.com Board Layout
2. Connect the LMT01EVM board to the USB port and disconnect the short
3. Start the LMT01EVM GUI. Press OK to the pop up error message “Auto Connect Failed! Check port
number.”
4. Go to the “SETUP” tan and select “Update Firmware”. Select OK to the message “Update MSP430
Firmware?” Accept the license and the message “Found 1 device” should appear as in Figure 16.
5. Choose “Select Firmware” and browse to the installation directory and go to the Firmware folder.
Select “LMT01EVM_Firmware-vx.xx.txt”. Click “Upgrade Firmware” and close when done.
6. Exit the GUI. Disconnect and reconnect the EVM board.
7. Relaunch the GUI. The EVM board should now be connected and the board should work properly with
the latest firmware.
5 Board Layout
Figure 17. Top Assembly Layer
Figure 18. Top Layer Routing
Figure 19. Power Layer Routing
17
SNIU027A–March 2015–Revised October 2015 LMT01EVM
Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated

Board Layout www.ti.com
Figure 20. Ground Layer Routing
Figure 21. Bottom Layer Routing
Figure 22. Bottom Assembly Layer
18 LMT01EVM SNIU027A–March 2015–Revised October 2015
Submit Documentation Feedback
Copyright © 2015, Texas Instruments Incorporated

VIO
2200pF
C7
GND
33k R5
33
R2
33
R1
GND
GND
DM
DP
GND
VIO
GND
GND GND
GND
0.01µF
C4
Green
1
2
D1 Super Red
1
2
D2
GND
L1 VLS201610ET-100M
10µF
C2
1K
R6
1K
R7
0.1uF
C5
0.1uF
C3 2.2µF
C1
5.6V
D21
GND
1M R20
GND
1.5K R40
PUR
GND
SV601165
A
PCB Number:
PCB Rev: LOGO
PCB
Texas Instruments
VIO
GND
0.1uF
C11 GND
GND
0.47µF
C17
GND
220PF
C6
220pF
C10
GND
GND
VIO
0.1uF
C19
GND
P6.0/CB0/A0 1 P6.1/CB1/A1 2 P6.2/CB2/A2 3 P6.3/CB3/A3 4 P6.4/CB4/A4 5 P6.5/CB5/A5 6 P6.6/CB6/A6 7 P6.7/CB7/A7 8
P5.0/A8/VREF+/VEREF+
9
P5.1/A9/VREF-/VEREF-
10
AVCC1
11
P5.4/XIN
12
P5.5/XOUT
13
AVSS1 14
DVCC1
15 DVSS1 16
VCORE
17
P1.0/TA0CLK/ACLK
18
P1.1/TA0.0
19
P1.2/TA0.1
20
P1.3/TA0.2
21
P1.4/TA0.3
22
P1.5/TA0.4
23
P1.6/TA1CLK/CBOUT
24
P1.7/TA1.0
25
P2.0/TA1.1 26 P2.1/TA1.2 27
P2.2/TA2CLK/SMCLK 28
P2.3/TA2.0 29 P2.4/TA2.1 30 P2.5/TA2.2 31
P2.6/RTCCLK/DMAE0 32
P2.7/UCB0STE/UCA0CLK 33
P3.0/UCB0SIMO/UCB0SDA
34
P3.1/UCB0SOMI/UCB0SCL
35
P3.2/UCB0CLK/UCA0STE
36
P3.3/UCA0TXD/UCA0SIMO
37
P3.4/UCA0RXD/UCA0SOMI
38
DVSS2 39
DVCC2
40
P4.0/PM_UCB1STE/PM_UCA1CLK 41
P4.1/PM_UCB1SIMO/PM_UCB1SDA 42
P4.2/PM_UCB1SOMI/PM_UCB1SCL 43
P4.3/PM_UCB1CLK/PM_UCA1STE 44
P4.4/PM_UCA1TXD/PM_UCA1SIMO 45
P4.5/PM_UCA1RXD/PM_UCA1SOMI 46
P4.6/PM_NONE 47 P4.7/PM_NONE 48
VSSU 49
PU.0/DP
50
PUR
51
PU.1/DM
52
VBUS
53
VUSB
54
V18
55
AVSS2 56
P5.2/XT2IN
57
P5.3/XT2OUT
58
TEST/SBWTCK 59
PJ.0/TDO 60
PJ.1/TDI/TCLK 61
PJ.2/TMS 62
PJ.3/TCK 63
RST/NMI/SBWTDIO 64
QFN PAD 65
U3 MSP430F5528IRGC
VUSB
VBUS
PUR
DM
DP
VBUS
VBUS +5V
COMP_MODE COMP_MODE
LMT01_VN
VN_NOT
VN_NOT
1 2 3
J4 850-10-003-10-001000
DNP
GND
LMT01_VP
SBWTDIO
SBWTCK SBWTCK
SBWTDIO
1
2
3
Y1
CSTCR4M00G15L99-R0
LOGO
PCB
Texas Instruments
LOGO
PCB
Texas Instruments
LMT01_VN
7.50k
R4
GND
VN_NOT
3
1
2
Q1
MMBT3904
GND
100k R3
LMT01_VP
1
2
3
4
6
5
J1
48037-2200
VIN
1
GND 2
ON/OFF
3
BYPASS
4
VOUT 5
U1
LP2985AIM5-3.3/NOPB
IO1
1
IO2
2
GND
3IO3 4
IO4 5
VCC 6
U2
TPD4E004DRY
COMP_MODE
LOGO
PCB
Pb-Free Symbol LOGO
PCB
FCC disclaimer
VP 1 VN
2
U4
LMT01LP
www.ti.com Schematic
6 Schematic
Figure 23. LMT01EVM Schematic
19
SNIU027A–March 2015–Revised October 2015 LMT01EVM
Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated

Bill of Materials www.ti.com
7 Bill of Materials
Table 2. LMT01EVM Bill of Materials
Designator Qty. Value Description Part Number Manufacturer
PCB 1 Printed Circuit Board SV601165 Any
C1 1 2.2 µF CAP, CERM, 2.2 µF, 10V, ±10%, X5R, 0603 C0603C225K8PACTU Kemet
C2 1 10 µF CAP, CERM, 10 µF, 10 V, ± 20%, X5R, 0603 C1608X5R1A106M TDK
C3, C5, 4 0.1 µF CAP CER 0.1UF 16 V 5% X7R 0402 GRM155R71C104JA88D Murata Electronics North
C11, C19 America
C4 1 0.01 µF CAP, CERM, 0.01 µF, 25V, ±5%, C0G/NP0, 0603 C1608C0G1E103J TDK
C6 1 220 pF CAP CER 220PF 50V 1% NP0 0402 C1005C0G1H221F050BA TDK Corporation
C7 1 2200 pF CAP, CERM, 2200 pF, 50V, ±10%, X7R, 0603 C0603X222K5RACTU Kemet
C10 1 220 pF CAP, CERM, 220 pF, 50V, ±1%, C0G/NP0, 0603 06035A221FAT2A AVX
C17 1 0.47 µF CAP, CERM, 0.47 µF, 10V, ±10%, X7R, 0603 C0603C474K8RACTU Kemet
D1 1 Green LED, Green, SMD LG L29K-G2J1-24-Z OSRAM
D2 1 Super Red LED, Super Red, SMD SML-LX0603SRW-TR Lumex
D21 1 5.6V Diode, Zener, 5.6V, 500 mW, SOD-123 MMSZ5232B-7-F Diodes Inc.
J1 1 Connector, Plug, USB Type A, R/A, Top Mount SMT 48037-2200 Molex
L1 1 10 µH Inductor, Shielded, Ferrite, 10 µH, 0.4 A, 1.38 Ω, SMD VLS201610ET-100M TDK
Q1 1 40 V Transistor, NPN, 40 V, 0.2 A, SOT-23 MMBT3904 Fairchild Semiconductor
R1, R2 2 33 RES, 33 ohm, 5%, 0.063W, 0402 CRCW040233R0JNED Vishay-Dale
R3 1 100k RES, 100 k, 5%, 0.063 W, 0402 CRCW0402100KJNED Vishay-Dale
R4 1 7.50k RES, 7.50 k, 1%, 0.063 W, 0402 CRCW04027K50FKED Vishay-Dale
R5 1 33k RES, 33k ohm, 5%, 0.063W, 0402 CRCW040233K0JNED Vishay-Dale
R6, R7 2 1K RES 1K OHM 1/10W 5% 0402 SMD ERJ-2GEJ102X Panasonic Electronic
Components
R20 1 1M RES,1M ohm, 5%, 0.063W, 0402 RC0402JR-071ML Yageo
R40 1 1.5K RES 1.5K OHM 1/16W 5% 0402 SMD CRCW04021K50JNED Vishay Dale
U1 1 Micropower 150 mA Low-Noise Ultra Low-Dropout Regulator LP2985AIM5-3.3/NOPB Texas Instruments
in SOT-23 Package, DBV0005A
U2 1 4-ChanneL ESD-Protection Array for High-speed Data TPD4E004DRY Texas Instruments
Interfaces, DRY006A
U3 1 Mixed Signal MicroController, RGC0064B MSP430F5528IRGC Texas Instruments
U4 1 High-Accuracy 2-pin Temperature Sensor with a Pulsed- LMT01LP Texas Instruments
Current Interface, LP0002A
Y1 1 Resonator, 4MHz, 39pF SMD CSTCR4M00G15L99-R0 Murata
J4 0 Header, 50mil, 3x1, Gold, TH 850-10-003-10-001000 Mill-Max
20 LMT01EVM SNIU027A–March 2015–Revised October 2015
Submit Documentation Feedback
Copyright © 2015, Texas Instruments Incorporated