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.

• 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

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.

• Absolute Rotary Position Sensor
• Steering Wheel Position Sensor
• Pedal Position Sensor
• Motor-shaft Position Sensor
• Throttle Position Sensor
• Float-Level Sensor
• Ride Height Position Sensor
• Non-Contacting Potentiometer