MLX90365 / Triaxis® mainstream rotary & linear position sensor IC (Analog/PWM)
The MLX90365 is the Generation II½ of Triaxis® position sensor IC. Thanks to an IMC on its surface, the monolithic device senses, in a contactless fashion, the 3 spatial components (i.e. Bx, By and Bz) of the applied magnetic flux density.
This unique sensing principle applied to a position sensor results into an impressive robustness of the position signal 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 DSP (Digital Signal Processing) to ultimately report the absolute angular position of the end-of-shaft magnet.
Key features MLX90365
- Absolute rotary and linear position sensor IC
- Triaxis® Hall technology
- Simple magnetic design
- Programmable transfer characteristic (multi-points - piece-wise-linear)
- Selectable output mode: analog (ratiometric) and Pulse Width Modulation (PWM)
- 12-bit angular resolution
- 10-bit thermal accuracy
- Open/short diagnostics
- On-board diagnostics
- Over-voltage protection
- Under-voltage detection
- 48-bit ID number
- Automotive temperature range
- AEC-Q100 qualified
- Single die - SOIC-8 package - Lead-free & RoHS compliant
- Dual die (full redundant) - TSSOP-16 package - Lead-free & RoHS compliant
- Thermal offset correction
- Programmable with the PTC-04 and the PTC-04-DB-90316 daughterboard
Alternatively, through measuring individually the horizontal and vertical components, the MLX90365 is able to address linear stroke (displacement) position sensor and also absolute rotary position sensor with a through-shaft magnet. The MLX90365 reports either a ratiometric analog output or a Pulse-Width Modulation (PWM) signal. From the sensing and reporting perspectives, the MLX90365 is an extremely versatile product for any stand-alone remote position sensor application.
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 MLX90365 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.
MLX90365 Application Examples
- Absolute Rotary Position Sensor
- Absolute Linear Position Sensor
- Pedal Position Sensor
- Steering Wheel Position Sensor
- Throttle Position Sensor
- Float-Level Sensor
- Ride Height Position Sensor
- Non-Contacting Potentiometer