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Texas Instruments LM75AEB, Руководство пользователя

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Texas Instruments LM75AEB Скачать руководство пользователя страница 6

 
 

 

Setup 

6 LM75AEB

 User’s Guide  

 

 

 

 

 

 

            

 

                July 2012

 

 

2.3. Operation 

For proper operation of the LM75AEB, JP4 should be jumpered. This will allow the LM75A’s VDD to be 
sourced from an on-board 3.3V regulator.  Jumping JP5 and JP6 will allow configuring the I2C slave address 
to 4Ch.  
 
For this quick start, connect the following jumpers: 

1.  JP4 to short 
2.  JP5 to short 
3.  JP6 to short 

 
 
 
 

 

Figure 3: LM75AEB Board Block Diagram 

 
 
 
 
 
 
 
 
 
 
 
 

 

USB

 

Input

EEPROM 

Circuit

Voltage 

Regulator 

Circuit

 

Microcontroller

Circuitry

USB D

 

+

USB D

 

-

 

 

 

+

 

5.

 

0 VDC

 

GND

+

 

3.

 

3 VDC

 

VDD

 

GND

GND

 

SCL

 

SDA

OS#

U6A1

LM

 

75AEB

JP6 
A1

JP5   
A0  

JP7 
A2

GND

A0

 

A1

 

A2

 

SDA

 

SCL

 

Содержание LM75AEB

Страница 1: ... Introduction The Texas Instruments LM75AEB evaluation board EB helps designers evaluate the operation and performance of the LM75A an industry standard digital temperature sensor with an integrated Sigma Delta analog to digital converter and I2 C interface The LM75A provides 9 bit digital temperature readings with an accuracy of 2 C from 25 C to 100 C and 3 C over 55 C to 125 C The EVM contains o...

Страница 2: ...igh and jumping the two terminals allows setting A0 low JP6 A1 is bit 1 of the three least significant bits of the I2C slave address At default this jumper is pulling high and jumping the two terminals allows setting A1 low JP7 A2 is bit 2 of the three least significant bits of the I2C slave address At default this jumper is pulling high and jumping the two terminals allows setting A2 low 1 0 0 1 ...

Страница 3: ...t http www ti com tool sensoreval You must install the SensorEval software before you connect theLM75AEB 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 ...

Страница 4: ...wnloaded 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 ...

Страница 5: ...de SNIU007A July 2012 Before you launch the SensorEval software connect LM75AEB 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 ...

Страница 6: ...Jumping JP5 and JP6 will allow configuring the I2C slave address to 4Ch For this quick start connect the following jumpers 1 JP4 to short 2 JP5 to short 3 JP6 to short Figure 3 LM75AEB Board Block Diagram USB Input EEPROM Circuit Voltage Regulator Circuit Microcontroller Circuitry USB D USB D 5 0 VDC GND 3 3 VDC VDD GND GND SCL SDA OS U6A1 LM75AEB JP6 A1 JP5 A0 JP7 A2 GND A0 A1 A2 SDA SCL ...

Страница 7: ...p 7 LM75AEB User s Guide SNIU007A July 2012 To run the SensorEval software click the icon on the desktop The dialog box appears to select the definition file of LM75 A confirm screen appears Click OK button ...

Страница 8: ...software will populated based on the LM75 s definition file Select the I2C Addr as 4c Select the Read Cont as All Regs This will read the values continuously Changing the value of LM75A s registers by clicking the white textbox on the Register Bits column ...

Страница 9: ...6 show the board layout for the LM75AEB The EVM offers resistors capacitors eeprom microcontroller and jumpers to set three least significant bits of I2C slave address to run the LM75AIM temperature sensor The LM75AEB have two additional package footprints MSOP 8 and LLP 8 Figure 4 Top Assembly Layer ...

Страница 10: ...Board Layout 10 LM75AEB User s Guide July 2012 Figure 5 Top Layer Routing Figure 6 Bottom Layer Routing ...

Страница 11: ...Schematic 11 LM75AEB User s Guide SNIU007A July 2012 4 Schematic Figure 7 LM75AEB Schematic ...

Страница 12: ... 100 Keystone 5011K 1 L1 Choke 90 Ohms Pcb 1206 Steward MI1206K900R 10 3 R2 R15 R17 Res 100K Ohm 1 8W 1 0805 SMD 0805 Panasonic ERJ 6ENF1003V 4 R9 R10 R11 R12 Res 10K Ohm 1 8W 1 0805 SMD 0805 Panasonic ERJ 6ENF1002V 1 R12 Res 1M Ohm 1 8W 1 0805 SMD 0805 Panasonic ERJ 6ENF 1004V 2 R7 R8 Res 1 5K Ohm 1 8W 1 0805 SMD 0805 Panasonic ERJ 6ENF 1501V 1 U2 IC Reg Simple Switcher TO 263 7 TO 263 TI LP2950C...

Страница 13: ...vices 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 abov...

Страница 14: ...ergy 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 correc...

Страница 15: ...nnée 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...

Страница 16: ...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 http www tij co jp ...

Страница 17: ...tput 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 ...

Страница 18: ...siness practice TI is not responsible or liable for any such statements TI products are not authorized for 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 unless officers of the parties have executed an agreement specifically governing such use Buyers represent that they have all necess...

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