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26.06. - 28.06.2018, Nuremberg
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Germany / General
André Huntrieser
✆: +49 (0) 2129 - 376-202
✉: Send email
Field Applications Engineer
Günter Fuchs
✆: +49 (0) 2129 376-200
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Tech Support
Raphael Balke
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Austria / Switzerland
Karl Eder
✆: +43 (0) 7448 - 21643-11
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The MLX90248 OmnipolarHallTM effect sensor IC is fabricated from mixed signal CMOS technology. It incorporates advanced chopper stabilization techniques to provide accurate and stable magnetic switch points.
The curcuit design provides an n internally controlled clocking mechanism to cycle power to the hall element and analog signal processing circuits. This serves to place the high current-consuming portions of the circuit into a "Sleep" mode. Periodically the device is "Awakened" by this internal logic and the magnetic flux from the hall element is evaluated against the predefined thresholds. If the flux density is above or below the Bop/Brp thresholds, then the output transistor is driven to change states accordingly, while in the "Sleep" cycle the output transistor is latched in it's previous state.
The design has been optimized for service in applications requiring extended operating lifetime in battery powered systems.
The output transistor of the MLX90248 will be latched on (Bop) in the presence of a sufficiently strong south or north magnetic field facing the marked side of the package. The output will be latched off (Brp) in the absence of a magnetic field.


Features Application examples
  • Omnipolar Hall-Effect Switch Sensor
  • Micro power consumption: 5µA @ 3V; 3µA @ 1.5V
  • 8kV ESD protection
  • Omnipolar: North and South pole active
  • Very high sensitivity: 6mT max (60 Gauss)
  • Operation down to 1.5V
  • Operating voltage from 1.5V to 3.6V
  • Open-drain output
  • Ultra Thin QFN-6L package (LD package)
  • Thin SOT23-3L package (SE package)
  • Automotive applications
  • Industrial and Robotics
  • Home and building automation
  • Solid-state switch
  • Handheld wireless handset awake switch
  • Lid close sensor for battery powered devices
  • Magnet proximity sensor for reed switch replacement in low duty cycle applications 
  • White goods and household applications 

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