Triaxis® mainstream linear SFI position sensor with wake-up switch function
MLX90424 Melexis
The MLX90424 is a magnetic position sensor IC designed for linear movement applications integrating a wake up switch function. It combines three isolated dies: two MLX90423 Triaxis® position sensors and one MLX92292 Switch.
Top features
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Triaxis position sensors
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Triaxis Hall Technology for robust Absolute Position Sensing
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Programmable Measurement Range
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Programmable Linear Transfer Characteristic (12 to 16 Multi-points)
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Selectable output modes: Analog ratiometric, SENT (SAE J2716 APR2016) and PWM (Pulse Width Modulation)
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Robustness against stray magnetic field up to 5mT (4kA/m) as per ISO 11452-8
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48 bit ID Number option
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Hall switch
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Less than 10μA average supply current in μ-Power Mode
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Supports 12 V battery-powered mode
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Integrated self-diagnostic functions activating dedicated Safe Mode
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Flexible magnetic thresholds and temperature coefficient
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ISO 26262 Safety Element out of Context
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ASIL C for the Position sensing
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ASIL B for the Switch sensing
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AEC-Q100 Qualified (Grade 0)
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Package, RoHS compliant: TSSOP-16 (GO) triple die
Triaxis® mainstream linear SFI position sensor with wake-up switch function - MLX90424
Product description
The MLX90424 is a magnetic position sensor IC designed for linear movement applications integrating a wake up switch function. It leverages the combined capabilities of three distinct dies: two MLX90423 Triaxis® Hall magnetic front ends and one MLX92292 Latch and Switch.
The MLX90424 accurately detects the three components of magnetic flux density (Bx, By, Bz). This enables precise measurement of linear displacement, making it ideal for applications where non-contact position sensing is essential.
The incorporation of the MLX92292 Switch introduces a power-saving wake-up feature. This allows the system to remain in a low-power state until a magnetic field is detected, optimizing energy consumption.
The MLX90424 offers flexible output options, including PWM, and SENT frames encoded in a Secure Sensor format. This ensures compatibility with various systems and simplifies integration.
Programming the sensor, after assembly into the application, increases the accuracy of the system thanks to the multi-point programmable linearization function.
The MLX90424 is compatible with the PTC-04 (DB-HALL06) for mass-production programming.
Application Examples
- Brake pedal stroke sensor
- Pedal Position Sensor
- Throttle Position Sensor
- Ride Height Position Sensor
- Absolute Linear Position Sensor
- Float-Level Sensor
- Non-Contacting Potentiometer
- Wake-up switch
Features and benefits
-
Triaxis position sensors
-
Triaxis Hall Technology for robust Absolute Position Sensing
-
Programmable Measurement Range
-
Programmable Linear Transfer Characteristic (12 to 16 Multi-points)
-
Selectable output modes: Analog ratiometric, SENT (SAE J2716 APR2016) and PWM (Pulse Width Modulation)
-
Robustness against stray magnetic field up to 5mT (4kA/m) as per ISO 11452-8
-
48 bit ID Number option
-
-
Hall switch
-
Less than 10μA average supply current in μ-Power Mode
-
Supports 12 V battery-powered mode
-
Integrated self-diagnostic functions activating dedicated Safe Mode
-
Flexible magnetic thresholds and temperature coefficient
-
-
ISO 26262 Safety Element out of Context
-
ASIL C for the Position sensing
-
ASIL B for the Switch sensing
-
-
AEC-Q100 Qualified (Grade 0)
-
Package, RoHS compliant: TSSOP-16 (GO) triple die
Documents and tools
Product flyer(s)
IC handling and assembly
Magnet suppliers
Related tech talks
Videos
Melexis redefines the market with 3D magnetic position sensors (MLX9042x)
Melexis expands its portfolio of 3D magnetic position sensing solutions with the introduction of the MLX9042x series. These sensors are intended for cost-conscious automotive customers who need to measure absolute position accurately and safely in harsh and noisy environments over an extended temperature range.
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.
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.
