The MLX90316 is a Triaxis® rotary position sensor IC providing the angular position of a small dipole magnet rotating above the device surface (end-of-shaft magnet), targeting non-contacting rotary position sensor applications in automotive and industrial systems.

Read more

Top features

  • Absolute rotary position sensor IC

  • Simple and robust magnetic design

  • Triaxis® Hall technology

  • Programmable angular range up to 360 degrees

  • Selectable output mode: analog (ratiometric), PWM or serial protocol (SPI)

  • 12-bit angular resolution over 360 degrees

  • 10-bit angular thermal accuracy

  • 40-bit ID number

  • -40°C to 150°C ambient temperature range

  • Broken-track diagnostic (open-Vdd, open-Vss)

  • On-chip diagnostics

  • Single die SOIC-8 package RoHS compliant

  • Dual die (full redundant) TSSOP-16 package RoHS compliant
Discover all features
Triaxis® rotary position sensor IC - MLX90316

Product description

The MLX90316 is a Triaxis® rotary position sensor IC providing the angular position of a small dipole magnet rotating above the device surface (end-of-shaft magnet). Thanks to an 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 (air-gap, off-axis) tolerances. The rotation of this horizontal component is sensed over a wide range (up to 360º) and processed by the on-chip DSP to ultimately report the absolute angular position of the magnet either as a ratiometric analog output or as Pulse-Width Modulation (PWM) 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 a myriad of non-contacting rotary position sensor applications which are frequently seen in automotive and industrial systems. This device is available in single and dual redundant implementations to cost-effectively address the full range of applications, including safety critical sensing requirements.

Learn more about the Triaxis® technology.

Features and benefits

  • Absolute rotary position sensor IC

  • Simple and robust magnetic design

  • Triaxis® Hall technology

  • Programmable angular range up to 360 degrees

  • Selectable output mode: analog (ratiometric), PWM or serial protocol (SPI)

  • 12-bit angular resolution over 360 degrees

  • 10-bit angular thermal accuracy

  • 40-bit ID number

  • -40°C to 150°C ambient temperature range

  • Broken-track diagnostic (open-Vdd, open-Vss)

  • On-chip diagnostics

  • Single die SOIC-8 package RoHS compliant

  • Dual die (full redundant) TSSOP-16 package RoHS compliant

Videos

Back-end calibration of magnetic position sensors

How to

This video explains the concept of the back-end calibration: a feature of our magnetic position sensors that allows you to compensate for non-linearity error in your application. Different methods of calibration and examples are presented. This will help you understand how to use the calibration and why you may need it.

Inspired Engineering