MLX90251
Programmable Linear Hall Effect Sensor
3901090251 Page 3 of 20 Data Sheet
Rev 012 Oct/2012
Table of Contents
1 Functional Diagram ........................................................................................................... 2
2 General Description .......................................................................................................... 2
3 Glossary of Terms ............................................................................................................. 4
4 Maximum Ratings ............................................................................................................. 4
5 Detailed Block Diagram ..................................................................................................... 5
5.1 Detailed Description .................................................................................................... 5
6 General Electrical Specifications ....................................................................................... 6
7 Programming Range ......................................................................................................... 7
8 Timing Specifications ........................................................................................................ 7
9 Accuracy ........................................................................................................................... 7
10 Programmable Features ................................................................................................. 8
10.1 Output Quiescent Voltage (V
OQ
) ................................................................................ 9
10.2 Thermal V
OQ
Drift (DRIFT) ........................................................................................ 9
10.3 Sensitivity, Rough Gain and Fine Gain ..................................................................... 9
10.4 Sensitivity Range Selection ..................................................................................... 10
10.5 Sensitivity Polarity (INVERT)................................................................................... 12
10.6 Clamping Levels (CLAMPLOW, CLAMPHIGH) ....................................................... 12
10.7 Filter (FILTER) ........................................................................................................ 13
10.8 Sensitivity Temperature Compensation (TC, TCW, TC
2
) ........................................ 13
10.9 Diagnostic Output Level (FAULTLEV) ..................................................................... 14
10.10 The EEPROM, Parity, and Melexis CRC .............................................................. 14
10.11 Output Amplifier Configuration (MODE) ................................................................ 14
10.12 Memory Lock (MEMLOCK) ................................................................................... 14
10.13 IC traceability ........................................................................................................ 15
11 Performance Graphs ..................................................................................................... 15
12 Applications Information ................................................................................................ 16
12.1 Application Circuits – VA-package .......................................................................... 16
12.2 Programming the Sensor ........................................................................................ 16
12.3 Calibration Procedure ............................................................................................. 17
13 Standard information regarding manufacturability of Melexis products with different
soldering processes ........................................................................................................... 18
14 ESD Precautions ........................................................................................................... 18
15 Package Information ..................................................................................................... 19
15.1 VA Package Outline and Hall Plate Position ........................................................... 19
16 Disclaimer ..................................................................................................................... 20
