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

10.3 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

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