MLX90614ESF-DAA Melexis Inc, MLX90614ESF-DAA Datasheet - Page 3

• Manufacturer Part Number: MLX90614ESF-DAA
• Description: IC THERMOMETER IR 3V (MED) TO-39
• Manufacturer: Melexis Inc

Specifications of MLX90614ESF-DAA

• Function: Thermometer, Thermostat
• Topology: ADC (Sigma Delta), Voltage Regulator
• Sensor Type: Internal
• Sensing Temperature: -40°C ~ 85°C
• Output Type: PWM, SMBus™
• Output Alarm: No
• Output Fan: No
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Through Hole
• Package / Case: TO-39
• For Use With: EVB90614 - BOARD EVAL FOR MLX90614
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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
8 Detailed description ....................................................................................................................................................................................... 10
9 Unique Features ............................................................................................................................................................................................ 29
10 Performance Graphs ................................................................................................................................................................................... 30
11 Applications Information .............................................................................................................................................................................. 37
12 Application Comments................................................................................................................................................................................. 40
13 Standard information regarding manufacturability of Melexis products with different soldering processes............................................. 42
14 ESD Precautions.......................................................................................................................................................................................... 42
15 FAQ .............................................................................................................................................................................................................. 43
16 Package Information.................................................................................................................................................................................... 45
17 Table of figures ............................................................................................................................................................................................ 48
18 References ................................................................................................................................................................................................... 49
19 Disclaimer .................................................................................................................................................................................................... 49
3901090614
Rev 006
7.1 MLX90614Axx .......................................................................................................................................................................................... 6
7.2 MLX90614Bxx, MLX90614Dxx................................................................................................................................................................ 8
8.1 Block diagram......................................................................................................................................................................................... 10
8.2 Signal processing principle .................................................................................................................................................................... 10
8.3 Block description .................................................................................................................................................................................... 11
8.4 SMBus compatible 2-wire protocol ........................................................................................................................................................ 14
8.5 PWM ....................................................................................................................................................................................................... 21
8.6 Switching Between PWM and SMBus communication......................................................................................................................... 25
8.7 Computation of ambient and object temperatures ................................................................................................................................ 26
8.8 Thermal relay ......................................................................................................................................................................................... 28
10.1 Temperature accuracy of the MLX90614............................................................................................................................................ 30
10.2 Field Of View (FOV) ............................................................................................................................................................................. 33
11.1 Use of the MLX90614 thermometer in SMBus configuration ............................................................................................................. 37
11.2 Use of multiple MLX90614s in SMBus configuration.......................................................................................................................... 37
11.3 PWM output operation ......................................................................................................................................................................... 38
11.4 Thermal alert / thermostat.................................................................................................................................................................... 38
11.5 High voltage source operation............................................................................................................................................................. 39
16.1 MLX90614XXA..................................................................................................................................................................................... 45
16.2 MLX90614XCC .................................................................................................................................................................................... 45
16.3 MLX90614XCF..................................................................................................................................................................................... 46
16.4 MLX90614XCH .................................................................................................................................................................................... 46
16.5 MLX90614XCI ...................................................................................................................................................................................... 47
16.6 Part marking ......................................................................................................................................................................................... 47
8.3.1 Amplifier .......................................................................................................................................................................................... 11
8.3.2 Supply regulator and POR ............................................................................................................................................................. 11
8.3.3 EEPROM ........................................................................................................................................................................................ 11
8.3.4 RAM ................................................................................................................................................................................................ 14
8.4.1 Functional description .................................................................................................................................................................... 14
8.4.2 Differences with the standard SMBus specification (reference [1]).............................................................................................. 15
8.4.3 Detailed description ........................................................................................................................................................................ 15
8.4.4 AC specification for SMBus............................................................................................................................................................ 17
8.4.5 Bit transfer ...................................................................................................................................................................................... 18
8.4.6 Commands ..................................................................................................................................................................................... 18
8.4.7 Sleep Mode..................................................................................................................................................................................... 19
8.4.8 MLX90614 SMBus specific remarks.............................................................................................................................................. 20
8.5.1 Single PWM format......................................................................................................................................................................... 22
8.5.2 Extended PWM format ................................................................................................................................................................... 23
8.5.3 Customizing the temperature range for PWM output.................................................................................................................... 24
8.6.1 PWM is enabled ............................................................................................................................................................................. 25
8.6.2 Request condition........................................................................................................................................................................... 25
8.6.3 PWM is disabled............................................................................................................................................................................. 25
8.7.1 Ambient temperature Ta ................................................................................................................................................................ 26
8.7.2 Object temperature To ................................................................................................................................................................... 26
8.7.3 Calculation flow .............................................................................................................................................................................. 26
10.1.1 Standard accuracy ....................................................................................................................................................................... 30
10.1.2 Medical accuracy.......................................................................................................................................................................... 31
10.1.3 Temperature reading dependence on V
DD
.................................................................................................................................. 31
Page 3 of 49
Infra Red Thermometer in TO-39
Single and Dual Zone
September 30, 2010
Data Sheet