LM57EVM Evaluation Module (EVM)
User's Guide
Literature Number: SNIU019
September 2013
Contents
6
........................................................................................................................ 4
Board Connectors and Components ...................................................................................... 5
2.1
Input/Output Connector Description and Components ................................................................. 5
2.1.1 Power Supply Input – VDD and GND ........................................................................... 6
2.1.2 Resistor-Programmable ........................................................................................... 6
2.1.3 Header Connector – J1 ........................................................................................... 7
2.1.4 JP1 Test Trip Jumper ............................................................................................. 7
Board Setup and Operation .................................................................................................. 8
Board Layout ...................................................................................................................... 9
Schematic ......................................................................................................................... 11
Bill of Materials ................................................................................................................. 12
2
Contents
1
2
3
4
5
Introduction
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List of Figures
2-1.
LM57 Evaluation Board ....................................................................................................
5
2-2.
VDD Input ....................................................................................................................
6
2-3.
Programmable Resistor ....................................................................................................
6
2-4.
Header Connector
2-5.
4-1.
4-2.
4-3.
5-1.
..........................................................................................................
Test Trip Jumper ............................................................................................................
Top Assembly Layer ........................................................................................................
Top Layer Routing .........................................................................................................
Bottom Layer Routing .....................................................................................................
LM57EVM Schematic .....................................................................................................
7
7
9
10
10
11
List of Tables
.....................................................................................
1-1.
Device and Package Configurations
6-1.
LM57EVM Bill of Materials ...............................................................................................
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List of Figures
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4
12
3
Chapter 1
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Introduction
The Texas Instruments LM57EVM evaluation module (EVM) helps designers evaluate the operation and
performance of the LM57. The LM57 is a precision, dual-output, temperature switch with an integrated
analog temperature sensor. The programmable resistors allow user to set the Trip Temperature (TTRIP).
The LM57 can be programmed to any of 256 trip temperatures.
The EVM contains one LM57 Resistor-Programmable Temperature Switch and Analog Temperature
Sensor. It comes pre-assembled with the LLP-8 LM57BISD-10, and has a 10°C hysteresis of LM57. The
header connector allows user to bring all package pins out for ease of characterization and testing.
Table 1-1. Device and Package Configurations
4
SENSOR
IC
Package
U1
LM57BISD-10
WSON
Introduction
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Chapter 2
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Board Connectors and Components
This section describes the jumpers and connectors on the LM57EVM, and how to properly connect, set up
and use the LM57EVM.
2.1
Input/Output Connector Description and Components
Figure 2-1. LM57 Evaluation Board
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Board Connectors and Components
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5
Input/Output Connector Description and Components
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2.1.1 Power Supply Input – VDD and GND
The power supply pin of the device is connected to the VDD test point of the EVM. The EVM requires an
external power source to power the LM57, and the test points shown in Figure 2-2 allow the EVM to
connect. There are two bypass capacitors: 10µF tantalum and 0.1µF ceramic.
Figure 2-2. VDD Input
2.1.2 Resistor-Programmable
The LM57 uses the voltage at the two Rsense pins to set the trip point for the temperature switch.
Rsense1A and Resense1B come pre-assembled 590kΩ and 412kΩ to set the trip point temperature
around 70°C at J3 junction temperature. However, the through-hole axial lead resistors are not stuffed on
the EVM allowing the customer to set their desired custom trip point, according to the values found in the
"Trip Point (°C) vs. Set-Resistor Values (Ω)" table from the LM57 datasheet (literature number SNIS152).
It is also possible to drive a set point voltage on the header connector of J1, with two precision voltage
sources, using the VTEMP (mV) at the "Trip Point vs. Set-Resistor Value (Ω)" table from the LM57
datasheet (literature number SNIS152).
Figure 2-3. Programmable Resistor
6
Board Connectors and Components
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Input/Output Connector Description and Components
2.1.3 Header Connector – J1
J1 is used to connect the package pins off from the board. When all of the device’s pins are wired to this
connector, the customer is able to further characterize and test.
Figure 2-4. Header Connector
2.1.4 JP1 Test Trip Jumper
The JP1 jumper header shorts the Trip-Test pin to ground for normal use. To activate the Trip Test
function, remove the shunt and drive the Trip Test pin with a VDD. Once activated, the output of the part
will be asserted a LOW and high for TOVER. The VTemp pin will correspond the voltage to the internal
set point for the comparator. The purpose of this is to check if the external circuitry works with LM57
without having to use a temperature handler.
Figure 2-5. Test Trip Jumper
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Board Connectors and Components
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7
Chapter 3
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Board Setup and Operation
1. For proper operation of the LM57, the test points VDD and GND (Section 2.1.1) should be applied to
an external power source.
2. The EVM is pre-assembled Rsense1A and Rsense2A with 590kΩ and 412kΩ respectively to set a Trip
Point at 70°C; therefore, the VTemp output voltage (J1 pin 3) corresponds to the approximated
temperature of 1108mV.
8
Board Setup and Operation
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Chapter 4
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Board Layout
Figure 4-1, Figure 4-2, and Figure 4-3 show the board layout for the LM57EVM.
Figure 4-1. Top Assembly Layer
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Board Layout
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Figure 4-2. Top Layer Routing
Figure 4-3. Bottom Layer Routing
10
Board Layout
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Chapter 5
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Schematic
Figure 5-1. LM57EVM Schematic
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Schematic
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11
Chapter 6
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Bill of Materials
Table 6-1. LM57EVM Bill of Materials
12
Designator
Description
Manufacturer
Part Number
EVM
LM57 Evaluation Board
Texas Instruments
SV601001
C2
CAP, TA, 10uF, 16V, +/10%, 2 ohm, SMD
Vishay-Sprague
293D106X9016B2TE3
10uF
C3
CAP, CERM, 0.1uF, 16V,
+/-5%, X7R, 0603
AVX
0603YC104JAT2A
0.1uF
H1, H2, H3, H4
Machine Screw, Round,
#4-40 x 1/4, Nylon,
Philips panhead
B&F Fastener Supply
NY PMS 440 0025 PH
H5, H6, H7, H8
Standoff, Hex, 0.5"L #440 Nylon
Keystone
1902C
J1
Header, TH, 100mil, 8x1,
Gold plated, 230 mil
above insulator
Samtec
TSW-108-07-G-S
JP1
Header, TH, 100mil, 2x1,
Gold plated, 230 mil
above insulator
Samtec
TSW-102-07-G-S
R1
RES, 100k ohm, 1%,
0.1W, 0603
Vishay-Dale
CRCW0603100KFKEA
100k
R2
RES, 0 ohm, 5%, 0.1W,
0603
Vishay-Dale
CRCW06030000Z0EA
0
Rsense1A
RES, 590k ohm, 0.1%,
0.1W, 0603
Yageo America
RT0603BRD07590KL
590k
Rsense2A
RES, 412k ohm, 0.1%,
0.1W, 0603
Yageo America
RT0603BRD07412KL
412k
SH-J1
Shunt, 2mm, Gold plated,
Black
Samtec
2SN-BK-G
1x2
TP1
Test Point, Multipurpose,
Red, TH
Keystone
5010
Red
TP2, TP3, TP4, TP5,
TP6
Test Point, Multipurpose,
Black, TH
Keystone
5011
Black
U1
Resistor-Programmable
Temperature Switch and
Analog Temperature
Sensor, 9-pin LLP
Texas Instruments
LM57BISD-10
Rsense1B, Rsense2B
Pin Receptacle
0.032/0.046 Diameter
Mill-Max
0327-0-15-15-34-27-10-0
C1
CAP, CERM, 1000pF,
50V, +/-5%, C0G/NP0,
0603
Kemet
C0603C102J5GAC
1000pF
Rsense1B, Rsense2B
RES, 1.00k ohm, 1%,
0.25W, TH
Vishay-Dale
CMF501K0000FHEB
1.00k
Bill of Materials
Value
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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
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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 with a variety of customers for products, and
therefore our arrangement with the user is not exclusive. TI assumes no liability for applications assistance, customer product design,
software performance, or infringement of patents or services described herein.
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 are 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.
SPACER
SPACER
SPACER
SPACER
SPACER
SPACER
SPACER
SPACER
【Important Notice for Users of EVMs for RF Products 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.
2.
3.
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,
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
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.
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(address) 24-1, Nishi-Shinjuku 6 chome, Shinjuku-ku, Tokyo, Japan
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【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】
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.
2.
3.
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。
実験局の免許を取得後ご使用いただく。
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。
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SPACER
SPACER
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SPACER
SPACER
SPACER
SPACER
SPACER
SPACER
SPACER
SPACER
SPACER
SPACER
SPACER
SPACER
SPACER
SPACER
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.
2.
3.
4.
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.
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.
Since the EVM is not a completed product, it may not meet all applicable regulatory and safety compliance standards (such as UL,
CSA, VDE, CE, RoHS and WEEE) which may normally be associated with similar items. You assume full responsibility to determine
and/or assure compliance with any such standards and related certifications as may be applicable. 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.
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 60°C 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.
Agreement to Defend, Indemnify and Hold Harmless. You agree to 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 use of the EVM that is not in accordance with the terms of the agreement. This obligation shall apply whether Claims
arise under law of tort or contract or any other legal theory, and even if the EVM fails to perform as described or expected.
Safety-Critical or Life-Critical Applications. If you intend to evaluate the components for possible use in safety critical applications (such
as life support) where a failure of the TI product would reasonably be expected to cause 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
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