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 (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 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.

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Top features

  • Absolute rotary position sensor IC

  • 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

  • Programmable with the PTC-04 and the PTC04-DB-90316 daughterboard

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Triaxis® rotary position sensor IC - MLX90316

Features and benefits

  • Absolute rotary position sensor IC

  • 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

  • Programmable with the PTC-04 and the PTC04-DB-90316 daughterboard

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