Triaxis® performance position sensor IC (Analog/PWM/SENT/SPC)
MLX90377 Melexis
The MLX90377 is a flexible magnetic position sensor IC conceived for high performance automotive applications. It senses three axes (i.e. X, Y, Z) from a magnet to measure rotary or linear motion.
Top features
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4 supported Output modes (by version)
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(fast) SENT (SAE J2716 APR2016)
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SPC (Short PWM Code)
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PWM (Pulse Width Modulation)
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Ratiometric Analog
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Programmable Linear Transfer Characteristic
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Up to 32 programmable calibration points
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Robustness against stray-field up to 5mT
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Programmable Measurement Range
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Up to 360 degrees rotary
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30mm (or more) linear stroke
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Operating supply voltage from 4.5 V to 18 V
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Operating temperature from -40°C to 160°C
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Triaxis® Hall Technology for performance and flexibility
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On Chip Signal Processing for Robust Absolute Position Sensing
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Enhanced serial data communication
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48 bits usable for customer traceability
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Packages, RoHS compliant
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SOIC-8 (DC), Single Die
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TSSOP-16 (GO), Dual Die (Redundancy)
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DMP-4 (VS), Single Die in Dual Mold PCB-less solution
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SMP-3 (VE), Single Die in Single Mold PCB-less solution
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AEC-Q100 qualified (Grade-0)
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ISO26262 SEooC (Safety Element out of Context)
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ASIL-C for (fast) SENT, PWM Output modes
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ASIL-B for analog output mode
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Programmable with the PTC-04 and the PTC-04-DB-HALL06 daughterboard
Triaxis® performance position sensor IC (Analog/PWM/SENT/SPC) - MLX90377
Product description
The MLX90377 is a monolithic magnetic position sensor IC. It consists of a Triaxis® Hall magnetic front end, an analog to digital signal conditioner, a DSP for advanced signal processing and an output stage driver.
The MLX90377 is sensitive to the three components of the magnetic flux density applied to the IC (i.e. Bx, By and Bz). This allows the MLX90377 with the correct magnetic circuit to decode the absolute position of any moving magnet (e.g. rotary position from 0 to 360 Degrees or linear displacement). It enables the design of non-contacting position sensors that are frequently required for both automotive and industrial applications.
The MLX90377 provides 4 output modes. Firstly, the IC supports (fast) SENT frames encoded according to a Secure Sensor format. The output delivers enhanced serial messages providing error codes, and user-defined values. Through programming, the MLX90377 can also be configured to output Short PWM (SPC), PWM (Pulse Width Modulated) signal or an analog ratiometric signal.
The MLX90377 has been especially conceived for demanding automotive applications and to bring new functionalities:
- Multiple output modes (Analog, PWM, SENT) including SPC capability for applications requiring multi-sensor bus architecture.
- Gateway (input pin) allowing the measurement of other external signals such as those produced from pressure sensors, force sensitive resistors, or NTC temperature sensors enabling higher levels of integration and lower wire count.
- Improved Absolute Maximum Rating (AMR) such as an output reverse polarity at -18 V ,thus improving robustness to electrical over stress (EOS).
- The introduction of a new package Single-Mold-Package (SMP), a PCB-less solution. The new package is smaller than the DMP-4 with improved mechanical integration features for lower cost of quality.
The MLX90377 is compatible with the PTC-04 ( DB-HALL06) for mass-production.
Application Examples:
- Brake stroke / travel sensor
- Transmission sensor
- Acceleration pedal position sensor
- Powertrain actuator sensors (EGR, ETB)
- Ride height position sensor
- Absolute Rotary or Linear Position Sensor
- Non-Contacting Potentiometer
- Small Angle Position Sensor
- Small Stroke Position Sensor
Features and benefits
-
4 supported Output modes (by version)
-
(fast) SENT (SAE J2716 APR2016)
-
SPC (Short PWM Code)
-
PWM (Pulse Width Modulation)
-
Ratiometric Analog
-
-
Programmable Linear Transfer Characteristic
-
Up to 32 programmable calibration points
-
-
Robustness against stray-field up to 5mT
-
Programmable Measurement Range
-
Up to 360 degrees rotary
-
30mm (or more) linear stroke
-
-
Operating supply voltage from 4.5 V to 18 V
-
Operating temperature from -40°C to 160°C
-
Triaxis® Hall Technology for performance and flexibility
-
On Chip Signal Processing for Robust Absolute Position Sensing
-
Enhanced serial data communication
-
48 bits usable for customer traceability
-
Packages, RoHS compliant
-
SOIC-8 (DC), Single Die
-
TSSOP-16 (GO), Dual Die (Redundancy)
-
DMP-4 (VS), Single Die in Dual Mold PCB-less solution
-
SMP-3 (VE), Single Die in Single Mold PCB-less solution
-
-
AEC-Q100 qualified (Grade-0)
-
ISO26262 SEooC (Safety Element out of Context)
-
ASIL-C for (fast) SENT, PWM Output modes
-
ASIL-B for analog output mode
-
-
Programmable with the PTC-04 and the PTC-04-DB-HALL06 daughterboard
Documents and tools
Datasheet(s)
Product flyer(s)
IC handling and assembly
Magnet suppliers
Related tech talks
Videos
Magnetic position sensor MLX90377
The MLX90377 is a flexible magnetic position sensor IC conceived for high-performance automotive applications. It senses three axes (i.e. X, Y, Z) from a magnet to measure rotary or linear motion.
Triaxis®: Unique position sensing solution
Triaxis® is an innovative magnetic sensor technology capable of very precise 3 axis magnetic field measurement from a single sensor. Endless linear, angular and 3D applications e.g. for powertrain (conventional, hybrid & electric), body, comfort & lighting, chassis & safety can be developed.
Next gen Triaxis® position sensor ICs
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Melexis universal programmer for magnetic sensors (PTC-04)
In this video, Albert-Jan Knevels (Applications Engineer), gives a detailed introduction to the PTC-04: Melexis universal programmer tool for magnetic sensors. He shows how to install the relevant hardware and gives a demonstration on how to work with the software.
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.
