Triaxis® Rotary Position Sensor

The MLX90316 is a Triaxis® Rotary Position Sensor providing the angular position of a small dipole magnet rotating above the device surface (end-of-shaft magnet).

Thanks to an Integrated Magneto-Concentrator (IMC) on its surface, the monolithic device senses, in a contactless fashion, the horizontal component of the applied magnetic flux density.

This unique sensing principle applied to a rotary position sensor results into an impressive robustness of the angular position over the mechanical (airgap, off-axis) tolerances.

The rotation of this horizontal component is sensed over a wide range (up to 360º - complete revolution) and processed by the on-chip DSP (Digital Signal Processing) to ultimately report the absolute angular position of the magnet either as a ratiometric analog output or as PWM (Pulse-Width Modulation) signal or as a 14-bit data accessible through a 3-pin SPI (serial interface) channel.

The output transfer characteristic is fully programmable (e.g. offset, gain, clamping levels, linearity, thermal drift, filtering, range...) to match any specific requirement through end-of-line calibration. The Melexis programming unit PTC-04 communicates and calibrates the device exclusively through the connector terminals (Vdd-Vss-Out).

The MLX90316 targets and is used in a myriad of non-contacting rotary position sensor applications which are frequently seen in automotive and industrial systems.

The device is available in single and dual redundant implementations to cost-effectively address the full range of applications, including safety critical sensing requirements.
Triaxis® Rotary Position Sensor - MLX90316

Features and benefits

  • Absolute Rotary Position Sensor

  • Simple & Robust Magnetic Design

  • Triaxis® Technology

  • -40°C - +150°C Ambient Temperature Range

  • Programmable Angular Range up to 360 Degrees

  • Programmable Linear Transfer Characteristic

  • Selectable Output Mode: Analog (Ratiometric), PWM, Serial Protocol (SPI)

  • 12 bit Angular Resolution over 360 Degrees

  • 10 bit Angular Accuracy

  • 40 bit ID Number

  • Broken-Track Diagnostic (Open-Vdd, Open-Vss)

  • On-Chip Diagnostics

  • Over-Voltage Protection

  • Under-Voltage Detection

  • AEC-Q100 Qualified - Grade 0

  • Single Die - SOIC-8 Package - Lead-free & RoHS compliant

  • Dual Die (Full Redundant) - TSSOP-16 Package - Lead-free & RoHS compliant

Used in these


  • Automotive - Transmission
  • Automotive - Powertrain
  • Automotive - Hybrid & Electric Powertrain
  • Automotive - Body, HVAC, Comfort & Lighting
  • Automotive - Chassis & Safety
  • Industrial & Robotics
  • Building, Security, Home & Office Automation
  • White Goods & Household Appliances
  • Non-Automotive Transportation

Inspired Engineering

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