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MLX92251
Dual Hall Effect Latch with Speed & Direction - Medium Sensitivity
Description
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Documents
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MLX92251 General Description
The Melexis MLX92251 is a second generation Hall-effect dual latch designed in mixed signal CMOS technology.
The device integrates a voltage regulator, two Hall sensors with advanced offset cancellation system and two open-drain output drivers, all in a single package.
Two Hall plates are integrated on the same piece of silicon, thus using the high precision of the wafer fabrication process to ensure a fixed spacing of 1.45mm between the sensing elements. The first Hall plate signal is used to provide the speed signal output. The combination of both the first and second Hall plate signals is then internally processed to directly deliver a direction signal output.
The MLX92251 shares the MLX922xx-based platform, synonym of high performance in terms of electrical specification, magnetic specification and protection level.
With latching magnetic characteristics, the speed (SP) output is turned low or high respectively with a sufficiently strong South or North pole facing the package top side. When removing the magnetic field, the device keeps its previous state.
The direction (DIR) output is latched in Low or High state depending on the movement direction of the applied magnetic field, as a result of certain magnetic pulse sequence on both Hall sensors.
The MLX92251 is delivered in a Green compliant 5-pin Thin Small Outline Transistor (TSOT) for surface-mount process.
MLX92251 Features and Benefits
Wide Operating Voltage range : from 2.7V to 24V
Two Integrated Hall plates for Direction Detection
Latching Magnetic Characteristics
Speed & Direction Open-Drain Outputs
Direction Output updated prior Speed Output
Excellent Temperature Stability
Reverse Supply Voltage Protection
Output Current Limit with Auto-Shutoff
Under-Voltage Lockout Protection
High ESD rating / Excellent EMC performance
Thin SOT23 5L Green Compliant package
MLX92251 Related Products
Part Number
Description
MLX90224
Dual Hall Effect Latch
MLX92211
Hall Latch - 2nd Generation - Very High Sensitivity
MLX92251 Applications
Seat position motor
Sunroof Control
Window Lifter
Electric Power Assisted Steering
Application Note
File Type
Size
Revision
Date
Action
Hall Applications Guide
PDF
498.0 KB
10/25/2005
Soldering Application Note and Recommendations
PDF
137.7 KB
2.1
2/3/2009
MLX92251 Documentation
DataSheet
File Type
Size
Revision
Date
Action
MLX92251 DataSheet
PDF
841.6 KB
001
10/6/2010
How It Works
File Type
Size
Revision
Date
Action
The Hall Effect Latch
SWF
14.9 KB
002b
2/23/2007
Virtual Hall Effect Demoboard
SWF
164.0 KB
12/9/2002
What is the Hall Effect?
SWF
16.8 KB
1
3/15/2007
Reference
File Type
Size
Revision
Date
Action
BLDC Fan Motor Driver Quick Reference
PDF
1.7 MB
004
10/4/2011
Hall Effect Latch and Switch Quick Reference
PDF
669.1 KB
006
4/6/2012
MLX92251 Tools
Software & Tools
File Type
Size
Revision
Date
Action
Melexis Virtual Hall Demo Board (Android)
APK
6.6 MB
1.0
4/11/2012
MLX92251 Environmental Information
Environmental Information
File Type
Size
Revision
Date
Action
Green / Halogen Free Compliance Declaration MLX92251
PDF
45.3 KB
001
10/6/2010
Package Material Declaration - TSOT5 GR - S1
PDF
110.7 KB
6.0
1/25/2012
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