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MLX90614ESF-DBB 参数 Datasheet PDF下载

MLX90614ESF-DBB图片预览

型号：	MLX90614ESF-DBB
PDF下载：	下载PDF文件查看货源
内容描述：	单个和双重红外温度计TO- 39 [Single and Dual Zone Infra Red Thermometer in TO-39]
分类和应用：
文件页数/大小：	40 页 / 837 K
品牌：	MELEXIS [ Melexis Microelectronic Systems ]

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MLX90614 family

Single and Dual Zone

Infra Red Thermometer in TO-39

3 Table of Contents

1 Functional diagram......................................................................................................................................................................................1

2 General Description ....................................................................................................................................................................................1

General description (continued) .....................................................................................................................................................................2

3 Table of Contents........................................................................................................................................................................................3

4 Glossary of Terms.......................................................................................................................................................................................4

5 Maximum ratings.........................................................................................................................................................................................4

6 Pin definitions and descriptions ..................................................................................................................................................................5

7 Electrical Specifications ..............................................................................................................................................................................6

7.1 MLX90614Axx .....................................................................................................................................................................................6

7.2 MLX90614Bxx , MLX90614Dxx...........................................................................................................................................................8

8 Detailed description...................................................................................................................................................................................10

8.1 Block diagram....................................................................................................................................................................................10

8.2 Signal processing principle................................................................................................................................................................10

8.3 Block description ...............................................................................................................................................................................11

8.3.1 Amplifier .....................................................................................................................................................................................11

8.3.2 Supply regulator and POR .........................................................................................................................................................11

8.3.3 EEPROM....................................................................................................................................................................................11

8.3.4 RAM ...........................................................................................................................................................................................13

8.4 SMBus compatible 2-wire protocol ....................................................................................................................................................13

8.4.1 Functional description ................................................................................................................................................................13

8.4.2 Differences with the standard SMBus specification (reference [1]) ...........................................................................................14

8.4.3 Detailed description....................................................................................................................................................................14

8.4.4 AC specification for SMBus .......................................................................................................................................................15

8.4.5 Bit transfer..................................................................................................................................................................................16

8.4.6 Commands.................................................................................................................................................................................16

8.4.7 Sleep Mode ................................................................................................................................................................................17

8.5 PWM..................................................................................................................................................................................................18

8.5.1 Single PWM format ....................................................................................................................................................................18

8.5.2 Extended PWM format ...............................................................................................................................................................19

8.5.3 Customizing the temperature range for PWM output.................................................................................................................20

8.6 Switching Between PWM and SMBus communication......................................................................................................................21

8.6.1 PWM is enabled .........................................................................................................................................................................21

8.6.2 Request condition ......................................................................................................................................................................21

8.6.3 PWM is disabled ........................................................................................................................................................................21

8.7 Computation of ambient and object temperatures.............................................................................................................................22

8.7.1 Ambient temperature Ta ............................................................................................................................................................22

8.7.2 Object temperature To ...............................................................................................................................................................22

8.7.3 Calculation flow ..........................................................................................................................................................................22

8.8 Thermal relay.....................................................................................................................................................................................24

9 Unique Features........................................................................................................................................................................................25

10 Performance Graphs...............................................................................................................................................................................26

10.1 Temperature accuracy of the MLX90614 ........................................................................................................................................26

10.2 Field Of View (FOV) ........................................................................................................................................................................28

11 Applications Information..........................................................................................................................................................................30

11.1 Use of the MLX90614 thermometer in SMBus configuration ..........................................................................................................30

11.2 Use of multiple MLX90614s in SMBus configuration.......................................................................................................................30

11.3 PWM output operation.....................................................................................................................................................................31

11.4 Thermal alert / thermostat ...............................................................................................................................................................31

11.5 High voltage source operation.........................................................................................................................................................32

12 Application Comments ............................................................................................................................................................................33

13 Standard information regarding manufacturability of Melexis products with different soldering processes............................................35

14 ESD Precautions.....................................................................................................................................................................................35

15 FAQ.........................................................................................................................................................................................................36

16 Package Information ...............................................................................................................................................................................38

16.1 MLX90614XXA ................................................................................................................................................................................38

16.2 MLX90614XXC................................................................................................................................................................................39

17 References..............................................................................................................................................................................................40

18 Disclaimer ...............................................................................................................................................................................................40

3901090614

Rev 003

Page 3 of 40

Data Sheet

03/Oct/2007

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