Texas Instruments | LM95172EVM | User Guides | Texas Instruments LM95172EVM User guides

Texas Instruments LM95172EVM User guides
User’s Guide
September 2012
LM95172EVM User’s Guide
LIST OF FIGURES ............................................................................................................. 1
LIST OF TABLES ............................................................................................................... 1
1.
INTRODUCTION ......................................................................................................... 1
2.
SETUP ......................................................................................................................... 2
2.1.
INPUT/OUTPUT CONNECTOR DESCRIPTION ..................................................... 2
2.2.
SETUP ...................................................................................................................... 4
2.3.
SOFTWARE INSTALLATION .................................................................................. 5
2.4.
OPERATION............................................................................................................. 8
3.
BOARD LAYOUT ...................................................................................................... 12
4.
SCHEMATIC.............................................................................................................. 13
EVALUATION BOARD/KIT/MODULE (EVM) ................................................................. 20
1
2
3
4
5
6
LIST OF FIGURES
VDD IO Jumper Settings ........................................................................................... 2
VDDA Analog Source Jumper Settings ..................................................................... 2
LM95172EVM Block Diagram.................................................................................... 4
LM95172EVM ............................................................................................................ 8
LM95172EVM Layout Diagram................................................................................ 12
LM95172EVM Schematic ........................................................................................ 13
1
2
LIST OF TABLES
Device and Package Configurations.......................................................................... 1
LM95172EVM Bill of Materials................................................................................. 13
1. Introduction
The LM95172EVM is used together with TI SensorEval software. The Texas Instruments LM95172EWG
evaluation module (EVM) helps designers learn about the operation, and evaluate the performance of the
LM95172EWG Temperature Sensor chip. The LM95172EVM is powered directly from the +5V line of the
USB connection. The microcontroller on the board provides the SPI (Serial Peripheral Interface) bus, and
relays the information from the LM95172EVM to the PC via the USB bus.
The EVM contains one Temperature Sensor (See Table 1).
Table 1: Device and Package Configurations
September 2012
LM95172EVM User’s Guide
1
Setup
TEMP SENSOR
PACKAGE
IC
LM95172EWG
U3
10-pin Cerpack
2. Setup
This section describes the jumpers and connectors on the EVM as well as how to properly connect, set up
the software and hardware, and use the LM95172EVM. There is no external power supply or signal sources
are required for operation of the LM95172EVM; however, there is an option allowing the use of external
power supply.
2.1. Input/Output Connector Description
J5 – Input is the power input terminal for the Temperature Sensor. The terminal header provides a power
(VDD IO). This header (IDD IO) can be used to insert the ammeter to measure current into VDD IO pin.
J6 – input is the VDD IO source for the LM95172EWG. The terminal header is two way jumpers. It can be
jumpered either pin 1-2 or 2-3 to use external power or a regulated internal supply +3.3V.
1
2
3
External Power
Supply
1
2
3
Internal Power
Supply
Figure 1: VDD IO Jumper Settings
J7 – Input is the input terminal for the external power supply. Pin 1 of J7 is the external VDDA source. Pin 2
of J7 is the GND. Pin 3 of J7 is the external VDD IO source.
J8 – Input is the jumper used to enable VDD analog source. The terminal header is two way jumpers. It can
be jumpered either pin 1-2 or 2-3 (Figure 1) to use external power or a regulated internal supply +3.3V.
1
2
3
External Power
Supply
1
2
3
Internal Power
Supply
Figure 2: VDDA Analog Source Jumper Settings
J9 – Input is the power input terminal for the VDDA analog source. The terminal header provides a power
(VDDA analog). This header (IDDA) can be used to insert the ammeter to measure current into VDDA pin.
2
LM95172EVM User’s Guide
September 2012
Setup
J10 – Output is the testpoint terminal. It provides user with signals for test purposes only. Please do not
apply any external power or signal to any of the pins on this header.
September 2012
SNIU009
3
Setup
2.2. Setup
The LM95172EVM along with the SensorEval software provides the designer with a convenient way to learn
about the operation of the EVM. The user simply installs the SensorEval software on the PC, connects the
USB cable from the PC to the EVM, connects the hardware setting, and it is ready to read the temperature. In
figure 3 is the block diagram that describes the EVM itself.
Figure 3: LM95172EVM Block Diagram
4
LM95172EVM User’s Guide
September 2012
Setup
2.3. Software Installation
To ensure that you are using the latest version of SensorEval software, you can download from our website
at http://www.ti.com/tool/sensoreval. You must install the SensorEval software, before you connect the
LM95172EVM to your PC.
To install the SensorEval Software:
•
Click this link http://www.ti.com/tool/sensoreval then click on the red “download” button and click the
“Save” button to save the file to the known directory.
•
To open the ZIP file you just download click on the “Open” button.
September 2012
SNIU009
5
Setup
•
Uncompress the file that you downloaded into a known directory, and run the
SensorEval_1.2.0_Setup.exe file.
•
When you see the Welcome screen as shown below, follow the instructions by clicking the “Next”
button on the screen to install the software.
When you finish the installation, please click “Finish” button.
•
6
LM95172EVM User’s Guide
September 2012
•
•
September 2012
Setup
Before you launch the SensorEval software, connect LM95172EVM device to one free USB port of
your PC. The “New Hardware” screen appears and click the “Next” button.
A warning sign appears. Click “Continue Anyway” button.
SNIU009
7
Setup
2.4. Operation
For proper operation of the LM95172EVM, J5, J6, J8 and J9 should be properly configured. The
recommended setting, using shorting blocks. If U3 of the LM95172EVM is not populated, Finger board must
be connected to J10. Fingerboard has a temperature range up to 200°C. One of the best features of this
board is that it allows user to insert the board itself into the high temperature.
For this quick start, connect the following jumpers:
1.
2.
3.
4.
J5 to short
J9 to short
J6 pin 2-3 to short
J8 pin 2-3 to short
Figure 4: LM95172EVM
8
LM95172EVM User’s Guide
September 2012
Setup
•
Below snapshot is the overview of the setup.
•
Align the polarity mark pin 1 of J10 with the ribbon cable alignment mark.
September 2012
SNIU009
9
Setup
10
•
Also align the polarity mark of the ribbon cable alignment with pin 1 of the Fingerboard.
•
Once the SensorEval software is installed, and the hardware is setup. You can launch them by
clicking the icon on the desktop. The dialog box appears to select the definition file of LM95172.
LM95172EVM User’s Guide
September 2012
Setup
•
A confirm screen appears. Click “OK” button.
•
The SensorEval software will populated based on the LM95172’s definition file.
•
Select the Read Cont dropdown menu as “All Regs”. This will read the values continuously.
•
Changing the value of LM95172’s registers by clicking the white textbox on the Register Bits column
September 2012
11
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Schematic
3. Board Layout
Figure 5 shows the board layout for the LM95172EVM. The EVM offers quick jumpers setting to read the
temperature sensor. It uses the +5V and GND lines from the USB connection. This +5V voltage is regulated
down to +3.3V to power the board. If the internal +3.3V is selected for both supply voltages then there is no
required for external power. However, the user may select the EXT external power inputs at J7.
Figure 5: LM95172EVM Layout Diagram
12
LM95172EVM User’s Guide
September 2012
Schematic
4. Schematic
Figure 6: LM95172EVM Schematic
September 2012
13
SNIU009
Schematic
14
LM95172EVM User’s Guide
September 2012
Schematic
Table 2: LM95172EVM Bill of Materials
Item
Qty
Part Reference
Value
Footprint
1
14
C2,C4,C6,C13,C14,
C15,C16,C17,C18,
C19,C20,C21,C22,
C23
10 nF
c0603
2
2
C1, C3
2.2 uF
c3216
3
2
C10, C11
12 pF
c0805
5
1
J3
usb-jack-b
6
3
J5, J7, J9
7
1
J6,J8
8
4
TP1,TP2,TP3,TP4
9
1
J10
Connector, USB-B
CONN, 1X2Header, 0.1 in
centers
CONN, 1X3 Header, 0.1 in
centers
CONN, 1X1 Header, 0.1 in
centers
CONN, 1X7 Header, 0.1 in
centers
8
1
L1
CM CHOKE
9
1
R2
10k
r0805
RES 10k OHM 1/8W 1% 0805 SMD
9
1
R12
1 Meg
r0805
RES 1.0Meg OHM 1/8W 1% 0805 SMD
10
2
R13,R14
1.5K
r0805
RES 1.5K OHM 1/8W 1% 0805 SMD
11
1
R17
100K
r0805
RES 100K OHM 1/8W 1% 0805 SMD
12
1
U3
Device Under Test (DUT)
10-pin
CERPAC
13
1
U1
LP2950CDT-3.3/TO252
TO263_7P
14
1
U2
Cypress CY7C68013A-100AXC
100tqfp
15
1
U4
24C02
soic8
16
1
U5
LM3722
SOT23-stx
17
1
BOARD
LM95172EWGEB, Rev 1.0
18
1
Y1
24 MHz
September 2012
15
TP40
TP40
TP40
TP41
Description
USB Connector Type B, Single Through
Hole
CONN 1 PIN 0.1 TH SINGL ROW
HEADER
CONN 1 PIN 0.1 TH SINGL ROW
HEADER
CONN 1 PIN 0.1 TH SINGL ROW
HEADER
CONN 1 PIN 0.1 TH SINGL ROW
HEADER
CHOKE 90 OHMS PCB
LM95172EWG NOPB High Temp Chip
IC REG Low Dropout
USB MICROCONTROLLER FX2LP 100
PIN
IC SRL EEPROM 2K (256 x 8) 1.8V
8SOIC 2 WIRE
5-pin uP reset ckt, sot23-5 pkg,
LM3722EM5-3.08
PCB FR4-06 2LYR 62MILS THICK
hc49us
CRYSTAL 24.000MHZ
SNIU009
EVALUATION BOARD/KIT/MODULE (EVM) ADDITIONAL TERMS
Texas Instruments (TI) provides the enclosed Evaluation Board/Kit/Module (EVM) under the following conditions:
The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user
indemnifies TI from all claims arising from the handling or use of the goods.
Should this evaluation board/kit not meet the specifications indicated in the User’s Guide, the board/ kit may be
returned within 30 days from the date of delivery for a full refund. THE FOREGOING LIMITED WARRANTY IS THE
EXCLUSIVE WARRANTY MADE BY SELLER TO BUYER AND IS IN LIEU OF ALL OTHER WARRANTIES,
EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS
FOR ANY PARTICULAR PURPOSE. EXCEPT TO THE EXTENT OF THE INDEMNITY SET FORTH ABOVE,
NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR
CONSEQUENTIAL DAMAGES.
Please read the User's Guide and, specifically, the Warnings and Restrictions notice in the User's Guide prior to
handling the product. This notice contains important safety information about temperatures and voltages. For
additional information on TI's environmental and/or safety programs, please visit www.ti.com/esh or contact TI.
No license is granted under any patent right or other intellectual property right of TI covering or relating to any
machine, process, or combination in which such TI products or services might be or are used. TI currently deals
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no liability for applications assistance, customer product design, software performance, or infringement of patents
or services described herein.
Mailing Address: Texas Instruments Post Office Box 655303 Dallas, Texas 75265
Copyright 2012, Texas Instruments Incorporated
REGULATORY COMPLIANCE INFORMATION
As noted in the EVM User’s Guide and/or EVM itself, this EVM and/or accompanying hardware may or may not be
subject to the Federal Communications Commission (FCC) and Industry Canada (IC) rules.
For EVMs not subject to the above rules, this evaluation board/kit/module is intended for use for ENGINEERING
DEVELOPMENT, DEMONSTRATION OR EVALUATION PURPOSES ONLY and is not considered by TI to be a
finished end product fit for general consumer use. It generates, uses, and can radiate radio frequency energy and
has not been tested for compliance with the limits of computing devices pursuant to part 15 of FCC or ICES-003
rules, which are designed to provide reasonable protection against radio frequency interference. Operation of the
equipment may cause interference with radio communications, in which case the user at his own expense will be
required to take whatever measures may be required to correct this interference.
General Statement for EVMs including a radio
User Power/Frequency Use Obligations: This radio is intended for development/professional use only in legally
allocated frequency and power limits. Any use of radio frequencies and/or power availability of this EVM and its
development application(s) must comply with local laws governing radio spectrum allocation and power limits for
this evaluation module. It is the user’s sole responsibility to only operate this radio in legally acceptable frequency
space and within legally mandated power limitations. Any exceptions to this is strictly prohibited and unauthorized
by Texas Instruments unless user has obtained appropriate experimental/development licenses from local
regulatory authorities, which is responsibility of user including its acceptable authorization.
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
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
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.
For EVMs annotated as IC – INDUSTRY CANADA Compliant
This Class A or B digital apparatus complies with Canadian ICES-003.
Changes or modifications not expressly approved by the party responsible for compliance could void the user’s
authority to operate the equipment.
Concerning EVMs including radio transmitters
This device complies with Industry Canada licence-exempt RSS standard(s). 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.
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.
~
Cet appareil numérique de la classe A ou B est conforme à la norme NMB-003 du Canada.
Les changements ou les modifications pas expressément approuvés par la partie responsable de la conformité ont
pu vider l’autorité de l'utilisateur pour actionner l'équipement.
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.
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.
Important Notice for Users of this Product in Japan】
This development kit is NOT certified as Confirming to Technical Regulations of Radio
Law of Japan!
If you use this product in Japan, you are required by Radio Law of Japan to follow the instructions below with
respect to this product:
(1) Use this product 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 this product only after you obtained the license of Test Radio Station as provided in Radio Law of
Japan with respect to this product, or
(3) Use of this product only after you obtained the Technical Regulations Conformity Certification as
provided in Radio Law of Japan with respect to this product.
Also, please do not transfer this product, unless you give the same notice above to the transferee.
Please note that if you could not follow the instructions above, you will be subject to penalties of Radio Law of
Japan.
Texas Instruments Japan Limited
(address) 24-1, Nishi-Shinjuku 6 chome, Shinjukku-ku, Tokyo, Japan
http://www.tij.co.jp
【ご使用にあたっての注意】
本開発キットは技術基準適合証明を受けておりません。
本製品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。
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のとします。
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EVALUATION BOARD/KIT/MODULE (EVM)
WARNINGS, RESTRICTIONS AND DISCLAIMERS
For Feasibility Evaluation Only, in Laboratory/Development Environments. Unless otherwise indicated, this
EVM is not a finished electrical equipment and not intended for consumer use. It is intended solely for use for
preliminary feasibility evaluation in laboratory/development environments by technically qualified electronics experts
who are familiar with the dangers and application risks associated with handling electrical mechanical components,
systems and subsystems. It should not be used as all or part of a finished end product.
Your Sole Responsibility and Risk. You acknowledge, represent and agree that:
1. You have unique knowledge concerning Federal, State and local regulatory requirements (including but not
limited to Food and Drug Administration regulations, if applicable) which relate to your products and which
relate to your use (and/or that of your employees, affiliates, contractors or designees) of the EVM for
evaluation, testing and other purposes.
2. You have full and exclusive responsibility to assure the safety and compliance of your products with all such
laws and other applicable regulatory requirements, and also to assure the safety of any activities to be
conducted by you and/or your employees, affiliates, contractors or designees, using the EVM. Further, you are
responsible to assure 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.
3. You will employ reasonable safeguards to ensure that your use of the EVM will not result in any property
damage, injury or death, even if the EVM should fail to perform as described or expected.
4. You will take care of proper disposal and recycling of the EVM’s electronic components and packing materials.
Certain Instructions. It is important to operate this EVM within TI’s recommended specifications and
environmental considerations per the user guidelines. Exceeding the specified EVM ratings (including but not
limited to input and output voltage, current, power, and environmental ranges) may cause property damage,
personal injury or death. If there are questions concerning these ratings please 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 result in unintended and/or inaccurate operation and/or possible permanent damage to
the EVM and/or interface electronics. Please consult the EVM User's 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, some circuit components may have case temperatures greater than 60oC as long as the input and output
are maintained at a normal ambient operating temperature. These components include but are not limited to linear
regulators, switching transistors, pass transistors, and current sense resistors which can be identified using the
EVM schematic located in the EVM User's Guide. When placing measurement probes near these devices during
normal operation, please be aware that these devices may be very warm to the touch. As with all electronic
evaluation tools, only qualified personnel knowledgeable in electronic measurement and diagnostics normally found
in development environments should use these EVMs.
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severe personal injury or death, such as devices which are classified as FDA Class III or similar classification, then
you must specifically notify TI of such intent and enter into a separate Assurance and Indemnity Agreement.
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