EVB90615 Melexis Inc, EVB90615 Datasheet - Page 3

• Manufacturer Part Number: EVB90615
• Description: EVAL BOARD FOR MLX90615
• Manufacturer: Melexis Inc

Specifications of EVB90615

• Sensor Type: Temperature
• Sensing Range: -40°C ~ 85°C
• Interface: SMBus (2-Wire/I²C)
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: MLX90615
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Voltage - Supply: -
• Sensitivity: -
• Other names: Q4435148

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.....................................................................................................................................................................................8
9 Unique Features........................................................................................................................................................................................20
10 Performance Graphs...............................................................................................................................................................................20
11 Applications Information..........................................................................................................................................................................22
12 Application Comments ............................................................................................................................................................................24
13 Standard information regarding manufacturability of Melexis products with different soldering processes............................................25
14 ESD Precautions.....................................................................................................................................................................................26
15 FAQ.........................................................................................................................................................................................................26
16 Package Information ...............................................................................................................................................................................28
17 References..............................................................................................................................................................................................29
18 Disclaimer ...............................................................................................................................................................................................29
3901090615
Rev 001
3 Table of Contents
8.1 Block diagram......................................................................................................................................................................................8
8.2 Signal processing principle..................................................................................................................................................................8
8.3 Block description .................................................................................................................................................................................8
8.4 SMBus compatible 2-wire protocol ....................................................................................................................................................10
8.5 Switching between PWM and SMBus ...............................................................................................................................................15
8.6 PWM..................................................................................................................................................................................................17
8.7 Principle of operation.........................................................................................................................................................................19
10.1 Temperature accuracy of the MLX90615 ........................................................................................................................................20
10.2 Field Of View (FOV) ........................................................................................................................................................................21
11.1 Use of the MLX90615 thermometer in SMBus configuration ..........................................................................................................22
11.2 Use of multiple MLX90615s in SMBus configuration.......................................................................................................................22
11.3 PWM output.....................................................................................................................................................................................23
8.3.1 Amplifier .......................................................................................................................................................................................8
8.3.2 Power-On-Reset (POR) ...............................................................................................................................................................9
8.3.3 EEPROM......................................................................................................................................................................................9
8.3.4 RAM ...........................................................................................................................................................................................10
8.4.1 Functional description ................................................................................................................................................................10
8.4.2 Differences with the standard SMBus specification (reference [1]) ...........................................................................................11
8.4.3 Detailed description....................................................................................................................................................................11
8.4.4 AC specification for SMBus .......................................................................................................................................................13
8.4.5 Bit transfer..................................................................................................................................................................................14
8.4.6 Commands.................................................................................................................................................................................14
8.4.7 Sleep Mode ................................................................................................................................................................................14
8.5.1 PWM is enabled .........................................................................................................................................................................15
8.5.2 Request condition ......................................................................................................................................................................16
8.5.3 PWM is disabled ........................................................................................................................................................................16
8.6.1 PWM format ...............................................................................................................................................................................17
8.6.2 Customizing the temperature range for PWM output.................................................................................................................18
8.7.1 Ambient temperature Ta ............................................................................................................................................................19
8.7.2 Object temperature To ...............................................................................................................................................................19
Page 3 of 30
Infra Red Thermometer
MLX90615
Data Sheet
28/Aug/2008