Texas Instruments LM60EVM User manual

User’s Guide
LM60EVM
ABSTRACT
This user's guide describes the characteristics, operation, and use of the LM60EVM evaluation board. This
user's guide discusses the hardware, how to set up and configure the software, and reviews various aspects of
the software operation. Throughout this document, the terms evaluation board, evaluation module, and EVM are
synonymous with the LM60EVM. This user's guide also provides information on the operating procedure, input
and output connections, an electrical schematic, printed circuit board (PCB) layout drawings, and a parts list for
the EVM.
Table of Contents
1 Overview..................................................................................................................................................................................2
1.1 Features............................................................................................................................................................................. 2
1.2 EVM Kit Contents...............................................................................................................................................................2
2 EVM Hardware.........................................................................................................................................................................3
2.1 LM60EVM Board................................................................................................................................................................3
2.2 Perforations........................................................................................................................................................................3
2.3 Subregulator.......................................................................................................................................................................3
2.4 Programming Header.........................................................................................................................................................3
2.5 BSL Button......................................................................................................................................................................... 3
2.6 Wire Terminal and Two-Pin Header................................................................................................................................... 3
2.7 EVM Operating Conditions.................................................................................................................................................4
3 Software Download.................................................................................................................................................................5
3.1 Live Software on dev.ti.com............................................................................................................................................... 5
3.2 Offline Software..................................................................................................................................................................5
4 Software...................................................................................................................................................................................6
4.1 Home Tab...........................................................................................................................................................................6
4.2 Data Capture Tab............................................................................................................................................................... 6
4.3 Collateral Tab..................................................................................................................................................................... 8
5 Schematic, Board Layout and Bill of Materials....................................................................................................................9
5.1 LM60 Schematic................................................................................................................................................................ 9
5.2 PCB Layout........................................................................................................................................................................ 9
5.3 Bill of Materials.................................................................................................................................................................10
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Trademarks
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All trademarks are the property of their respective owners.
1 Overview
The LM60EVM allows users to evaluate the performance of the LM60 analog temperature sensor. The
EVM comes in a USB stick form factor for control and data logging, and has an onboard MSP430F5528
microcontroller that connects the host computer and the analog interface of the LM60 device. The module is
designed with perforations between the sensor and host controller on the EVM board. The perforation allows the
user flexibility in their evaluation:
• The user can connect the LM60 to the user's system/host.
• The user can connect the EVM host and software to the user's system with LM60 devices.
• Small individual boards allow the user to place sensors in the user's system.
• Hole spacing is compatible with common 0.1" prototyping breadboards.
1.1 Features
This EVM has the following features:
• Provides GUI for easy setup
• Perforated PCB allows for placement flexibility
• Two-pin header and wire terminal for connecting higher external power supply
• Software runs online or through offline installation
1.2 EVM Kit Contents
Table 1-1 details the contents of the EVM kit. Contact the nearest Texas Instruments Product Information Center
if any components are missing. TI highly recommends that users check the TI website at https://www.ti.com to
verify that they have the latest versions of the related software.
Table 1-1. EVM Kit Contents
Item Quantity
LM60EVM 1
CAUTION
The LM60 integrated circuit and other components on the LM60EVM can be damaged by
electrostatic discharge (ESD). Texas Instruments recommends that all integrated circuits be handled
with appropriate precautions. Failure to observe proper handling and installation procedures can
cause damage. ESD damage can range from subtle performance degradation to complete device
failure.
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2 EVM Hardware
2.1 LM60EVM Board
Figure 2-1 shows an image of the LM60EVM with some of the hardware features of the design labeled.
Figure 2-1. LM60EVM
2.2 Perforations
There are perforations between the USB controller and the LM60 sensor. These pins are labeled with their
functions on the board silkscreen, and can be used to either debug or provide an electrical connection when the
LM60 and controller board need to separated for testing.
2.3 Subregulator
The onboard 3.3-V regulator (U1) is enabled and disabled with switch S1. The subregulator must be enabled for
normal operation of the LM60EVM. The green LED (D3) illuminates when the subregulator is enabled.
2.4 Programming Header
The LM60EVM comes pre-loaded with firmware that is necessary for correct operation. Header J2 is provided
for Spy-Bi-Wire access to the MSP430F5528, but TI does not recommend that users access this header
or reprogram the device. This header may be required for recovery, however, if firmware corruption of the
LM60EVM occurs at any point.
2.5 BSL Button
The LM60EVM features push-button SW1 for entering USB BSL mode. This can be used for any necessary
firmware updates. This method is preferred over the use of the Spy-Bi-Wire programming header for firmware
loading.
2.6 Wire Terminal and Two-Pin Header
The onboard wire terminal (J3) and two-pin header (J4) can be used to connect an external power supply of
up to 10 V. In normal operation, connect the two-pin header using the provided two-pin header shunt. When
connecting an external power supply, disconnect the header by removing the shunt and screw down the wire
terminal to secure the external power supply wires in place.
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2.7 EVM Operating Conditions
The LM60EVM power is supplied through the USB connector. The LDO (U1) converts the 5 V from the USB to
3.3 V used by the LM60 and the MSP430. The EVM may be directly inserted into a USB port on a PC or laptop,
or may be connected to the latter using an appropriate USB cable. Section 2.7 shows the different temperature
limits for the the controller and device sides of the EVM. These are set by the onboard MSP430F5528 and the
LM60 ICs on the controller and breakout portions, respectively.
Table 2-1. LM60EVM Temperature Limits
BOARD SECTION CONDITIONS TEMPERATURE RANGE
Controller Board Recommended operating free-air
temperature, TA
-40 °C to 125 °C
Absolute maximum junction temperature, TJ95 °C
LM60 Breakout Recommended operating free-air
temperature, TA
LM60B: -25 °C to 125 °C
LM60C: -40 °C to 125 °C
Absolute maxmimum junction temperature,
TJ
125 °C
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3 Software Download
The PC GUI Software for LM60EVM runs on TI's GUI Composer framework. The software is available as a live
version that runs in a browser and as a download for offline use. The software is compatible with Microsoft®
Windows®, macOS®, and Linux® operating systems.
3.1 Live Software on dev.ti.com
The live software currently works on Google Chrome™, Firefox®, and Safari® browsers. Internet Explorer® is not
supported. Users can access the live version through one of the following actions:
• Go to the EVM tool page and click View.
• Go to https://dev.ti.com/gallery/info/THSApps/LM60_GUI and select the LM60 GUI from the gallery.
• Click the application icon within the gallery to launch the software. Click the prompt to install the TI Cloud
Agent Bridge browser plugin.
3.2 Offline Software
3.2.1 Download from dev.ti.com
Users can access the latest version of the offline software by navigating to the live version as noted above. Look
for the download icon and download both the application and runtime for the operating system (see Figure 3-1).
Figure 3-1. Download Pop-Up
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4 Software
4.1 Home Tab
At start-up, the Home tab is displayed (Figure 4-1). Press the Learn More button to see device features and a
pinout diagram. The Home tab has shortcut icons to the Data Capture and Collateral tabs for quick access.
Figure 4-1. Home
4.2 Data Capture Tab
The Save Start and Save Stop buttons on the Data Capture tab allow the user to begin recording the
temperature data in a .csv file. Press the Save Start button to start the download and press Save Stop to
stop the download.
The Data Capture tab will automatically begin collecting temperature data when the application is launched. The
data is displayed in a scalar graph and will default to a refresh rate of 1 second. The drop-down menu allows the
user to change the refresh rate for the graph and temperature display. The options are the following:
• Off
• As Fast As Possible
• Every 500 ms
• Every 1 s
• Every 5 s
• Every 10 s
• Every 60 s
Additionally, the LM60EVM comes equipped with a firmware-based, low-pass filter to remove noise that can
cause erroneous temperature measurements. This method eliminates the need for implementing an extra
resistor and capacitor. The alpha value controls how much noise is filtered out. An alpha value of 1 (default)
will behave like no filter is being used. On the other hand, an alpha value of 0.1 eliminates a lot of noise. Try
inputting different alpha values between 0.001 and 1 to see how the filter response changes in real time.
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Figure 4-2. Data Capture Without Filter
Figure 4-3. Data Capture After Filter Implemented
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4.3 Collateral Tab
As Figure 4-4 shows, the Collateral tab includes links to various related literature, including the device data sheet
and any corresponding application notes.
Figure 4-4. Collateral
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5 Schematic, Board Layout and Bill of Materials
5.1 LM60 Schematic
VBUS
220 ohm
L1
3P3V
IN
1
2
EN
3NC 4
OUT 5
GND
U1
TLV70033DCKR
DM
VBUS
22
R1
VBUS
1
D-
2
D+
3
GND
4
5
6
J1
DP
2.2uF
C1
100k
R3
1.0k
R4
22
R2
GND
10uF
C2
GND
GND
6.2V
D2
BZT52C6V2T-7 1.00M
R5
1.50k
R6
GND
10pF
16V
C3
10pF
16V
C4
GND
PUR
GNDGND
Green
1
2
D3
12
S1
GND
GND
TPD4E004DRYR
IO1
1
IO2
2
GND 3
IO3 4
IO4 5
VCC
6
U2
GNDGND
47
R7
VCC
110
R8
1
MP2MP1
2
MP3 MP4
SW1
GND
0.1uF
10V
C5
GNDGND
BSL
IN
1
2
EN
3NC 4
OUT 5
GND
U3
TLV70033DCKR
VCC
VBUS
VCORE VUSB
2.2uF
C6
V18
GND
SBWTCK
10uF
C7
1
2
3
J2
Header_3x1
GND
SBWTDIO
0.47uF
6.3V
C8
0.47uF
6.3V
C9
0.47uF
6.3V
C10
GND GND GND
GND
GND
VCC
Super Red
D4
1.0k
R13
XT2IN
MSP430F5528IRGCR
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
U4
XT2OUT
1
3
NC
4NC
2
Y1
VCC
DP
DM
33.0k
R14
PUR
SBWTDIOV18
VCORE SBWTCK
VBUS
2200pF
50V
C13
VUSBVCC
GND
GND
0.1uF
10V
C14
0.1uF
10V
C15
0.1uF
10V
C16
GNDGND GND
VBUS = 5V INPUT
VUSB = 3.3V OUT
VUSB 12mA Max
6.2V
D1
BZT52C6V2T-7
ADC
3P3V
GND
ADC
50V
680pF
C12
GND
GND
50V
0.1uF
C11
25V
100pF
C17 0
R15
GND
GND
SH-J4
60900213421
1
2
J3 OSTTE020161
1
2
J4PEC02SAAN
VO 2 +VS
1
3
GND
U5
Place C17 as
close to the
ADC pin on the
MSP430 as
possible
Figure 5-1. LM60 Schematic
5.2 PCB Layout
Figure 5-2. Top View
Figure 5-3. Bottom View
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5.3 Bill of Materials
Table 5-1. Bill of Materials (BOM)
DESIGNATOR QTY VALUE DESCRIPTION PACKAGE REFERENCE PART NUMBER MANUFACTURER
!PCB1 1 Printed Circuit Board SENS097 Any
C1, C6 2 2.2uF CAP, CERM, 2.2 uF, 16 V, +/- 10%, X5R, 0402 0402 GRM155R61C225KE11D MuRata
C2, C7 2 10uF CAP, CERM, 10 uF, 10 V, +/- 20%, X5R, 0603 0603 C1608X5R1A106M080AC TDK
C3, C4 2 10pF CAP, CERM, 10 pF, 16 V,+/- 10%, C0G, 0402 0402 C0402C100K4GACTU Kemet
C5, C14, C15, C16 4 0.1uF CAP, CERM, 0.1 uF, 10 V,+/- 10%, X5R, 0402 0402 LMK105BJ104KV-F Taiyo Yuden
C8, C9, C10 3 0.47uF CAP, CERM, 0.47 uF, 6.3 V, +/- 10%, X7R, 0402 0402 JMK105B7474KVHF Taiyo Yuden
C11 1 0.1uF CAP, CERM, 0.1 uF, 50 V, +/- 10%, X5R, 0402 0402 C1005X5R1H104K050BB TDK
C12 1 680pF CAP, CERM, 680 pF, 50 V, +/- 10%, X7R, AEC-
Q200 Grade 1, 0402
0402 CGA2B2X7R1H681K050BA TDK
C13 1 2200pF CAP, CERM, 2200 pF, 50 V, +/- 5%, X7R, 0402 0402 CL05B222JB5NNNC Samsung Electro-Mechanics
C17 1 100pF CAP, CERM, 100 pF, 25 V, +/- 5%, C0G/NP0,
0402
0402 C0402C101J3GACTU Kemet
D1, D2 2 6.2V Diode, Zener, 6.2 V, 300 mW, SOD-523 SOD-523 BZT52C6V2T-7 Diodes Inc.
D3 1 Green LED, Green, SMD LED, GREEN, 0603 SML-LX0603GW-TR Lumex
D4 1 Super Red LED, Super Red, SMD LED_0603 150060SS75000 Wurth Elektronik
J1 1 Connector, Plug, USB Type A, R/A, Top Mount
SMT
USB Type A right angle 48037-1000 Molex
J2 1 Header, 2.54 mm, 3x1, Gold, TH Header, 2.54 mm, 3x1, TH GBC03SAAN Sullins Connector Solutions
J3 1 Terminal Block, 2x1, 3.5mm, TH 2x1 Terminal Block OSTTE020161 On-Shore Technology
J4 1 Header, 100mil, 2x1, Tin, TH Header, 2 PIN, 100mil, Tin PEC02SAAN Sullins Connector Solutions
L1 1 220 ohm Ferrite Bead, 220 ohm @ 100 MHz, 0.45 A, 0402 0402 BLM15AG221SN1D MuRata
R1, R2 2 22 RES, 22, 5%, 0.1 W, AEC-Q200 Grade 0, 0402 0402 ERJ-2GEJ220X Panasonic
R3 1 100k RES, 100 k, 5%, 0.1 W, AEC-Q200 Grade 0,
0402
0402 ERJ-2GEJ104X Panasonic
R4, R13 2 1.0k RES, 1.0 k, 5%, 0.1 W, AEC-Q200 Grade 0, 0402 0402 ERJ-2GEJ102X Panasonic
R5 1 1.00Meg RES, 1.00 M, 1%, 0.063 W, AEC-Q200 Grade 0,
0402
0402 RMCF0402FT1M00 Stackpole Electronics Inc
R6 1 1.50k RES, 1.50 k, 1%, 0.063 W, AEC-Q200 Grade 0,
0402
0402 RMCF0402FT1K50 Stackpole Electronics Inc
R7 1 47 RES, 47, 5%, 0.1 W, AEC-Q200 Grade 0, 0402 0402 ERJ-2GEJ470X Panasonic
R8 1 110 RES, 110, 1%, 0.1 W, AEC-Q200 Grade 0, 0402 0402 ERJ-2RKF1100X Panasonic
R14 1 33.0k RES, 33.0 k, 1%, 0.063 W, 0402 0402 RC0402FR-0733KL Yageo America
R15 1 0 RES, 0, 0%, 0.25 W, AEC-Q200 Grade 0, 0603 0603 RCS06030000Z0EA Vishay-Dale
S1 1 Switch, Slide, SPST, Top Slide, SMT Switch, Single Top Slide,
2.5x8x2.5mm
CHS-01TB Copal Electronics
SH-J4 1 Shunt, 2.54mm, Gold, Black Shunt, 2.54mm, Black 60900213421 Wurth Elektronik
SW1 1 Switch, SPST-NO, Off-Mom, 0.05A, 12VDC, SMD 3.9x2.9mm PTS820 J20M SMTR LFS C&K Components
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