Melexis MLX90393 Triaxis® Micropower Magnetometer

Melexis MLX90393 Triaxis® Micropower Magnetometer offers a 16-bit output proportional to the magnetic flux density sensed along the XYZ axis and a temperature output signal. These digital values are available via I2C and SPI, where the MLX90393 is a slave on the bus. The MLX90393 series can be reprogrammed to different modes along with different settings at run-time. Duty cycles can be achieved in the range of 0.1% to 100% which makes the sensor ideal for micropower applications. The MLX90393 series rely on the Melexis proprietary Triaxis technology. By selecting which axis are to be measured, the raw data can be used as input for further post-processing, such as joystick applications, rotary knobs, linear strokes and complex 3D position sensing applications.

The Melexis MLX90393 Triaxis Micropower Magnetometer is offered in compact QFN-16 and UTDFN-8 package, ideal for space-constrained applications.


  • Flexibility:
    • In-application run-time programmable functional parameters
    • Trade-off between current consumption, speed and signal noise with best-in-class Figure of Merit
    • Measure magnetic XYZ and temperature T, or any combination thereof
  • Micropower:
    • Duty cycle between 0.1% and 100% (continuous burst)
    • Battery applications supported with low supply voltage of 2.2V to 3.6V
  • SPI slave and/or I2C slave with 2 bits HW addressing and 5 bits SW
  • Modes:
    • Single Measurement Mode
    • Burst Mode
    • Wake-up On Change Mode
  • Package options
    • 3.0mm x 3.0mm x 1.0mm QFN-16
    • 2.5mm x 2.0mm x 0.4mm UTDFN-8


  • Internet of Things (IoT) sensing elements
  • Metering
  • Impeller-based meters 360º impeller position detection including anti-tampering
  • Meter mechanical counter digit readout
  • General tri-axial tampering detection
  • Gauss-meter
  • Human-Machine Interface (HMI)
  • Joysticks with Push
  • Rotary knobs with Push
  • Lever / slide switch linear stroke
  • Valve and piston position, industrial sensing
  • Robotics & factory automation


Product Applications

Melexis MLX90393 Triaxis® Micropower Magnetometer

Block Diagram

Block Diagram - Melexis MLX90393 Triaxis® Micropower Magnetometer
Publicado: 2015-10-19 | Actualizado: 2022-03-11