The MLX90324 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 (airgap, off-axis) tolerances. The rotation of this horizontal component is sensed over a wide range (up to 360º) and processed by the on-chip Digital Signal Processing (DSP) to ultimately report the absolute angular position of the magnet either as a ratiometric analog output or as PWM signal or as a SAE-J2716/SENT (2007) telegram.

• Absolute rotary position sensor IC
• Simple and robust magnetic design
• Triaxis® Hall technology
• -40 °C to 150 °C ambient temperature range (qualified up to 160 °C)
• Programmable angular range up to 360 degrees
• Programmable linear transfer characteristic (up to 16 points)
• Selectable output mode: analog (ratiometric), PWM or SAE-J2716/SENT (2007)
• Programmable linearization algorithm: arbitrary points or piece-wise-linear
• 12-bit angular resolution over 360 degrees
• 10-bit angular thermal accuracy
• 48-bit ID number
• Broken-track diagnostic (Open-VDD, Open-VSS)
• On-chip diagnostics
• Over-voltage and under-voltage protection
• AEC-Q100 qualified - grade 0
• Single die SOIC-8 package - Lead-free and RoHS compliant
• Dual die (full redundant) TSSOP16 package - Lead-free and RoHS compliant
• Programmable with the PTC-04 and the PTC-04-DB-90316 daughterboard

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 MLX90324 targets and is used in a myriad of non-contacting rotary position sensor applications which are frequently seen in automotive and industrial systems. The MLX90324 is similar to the MLX90316 in many ways but its thermal stability and the SENT protocol make it suitable for under-the-hood applications. The IC 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
• EMS Actuator (EGR, Manifold…)
• Throttle Position Sensor
• Non-Contacting Potentiometer