Triaxis® mainstream rotary & linear position sensor IC (Analog/PWM)
MLX90365 Melexis
The MLX90365 is a monolithic sensor IC sensitive to the flux density applied orthogonally and parallel to the IC surface.
Top features
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Absolute rotary and linear position sensor IC
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Triaxis® Hall technology
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Simple magnetic design
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Programmable transfer characteristic (multi-points - piece-wise-linear)
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Selectable output mode: analog (ratiometric) and Pulse Width Modulation (PWM)
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12-bit angular resolution
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10-bit thermal accuracy
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Open/short diagnostics
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On-board diagnostics
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Over-voltage protection
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Under-voltage detection
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48-bit ID number
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Automotive temperature range
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AEC-Q100 qualified
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Single die - SOIC-8 package - Lead-free & RoHS compliant
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Dual die (full redundant) - TSSOP-16 package - Lead-free & RoHS compliant
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Thermal offset correction
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Programmable with the PTC-04 and the PTC-04-DB-90316 daughterboard
Triaxis® mainstream rotary & linear position sensor IC (Analog/PWM) - MLX90365
Product description
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.
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.
The MLX90365 is offered as an ASIL-B SEooC (Safety Element out of Context - ISO 26262) component. The MLX90365 is pin-to-pin compatible with the previous generations of Triaxis® position sensor ICs:
Features and benefits
-
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
Documents and tools
Application note(s)
IC handling and assembly
Magnet suppliers
Related tech talks
Videos
Back-end calibration of magnetic position sensors
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.
