The MLX90422 is a magnetic position sensor suited for demanding but cost-conscious automotive applications. It supports rotary or linear motions of the magnet, with SENT output.

Read more

Top features

  • SENT output (SAE J2716 APR2016)

  • ISO 26262 ASIL-B SEooC (Safety Element out of Context)

  • Programmable measurement range

  • Programmable linear transfer characteristic with up to 17 points

  • Enhanced serial data communication

  • Operating temperature from -40°C to 160°C

  • Triaxis® Hall technology

  • On chip signal processing for robust absolute position sensing

  • Packages, RoHS compliant

    • SOIC-8 (DC) Single Die

    • TSSOP-16 (GO) Dual Die (redundancy)

    • DMP-4 (VS), Single Die PCB-less solution

    • SMP-3 (VE), Single Die PCB-less solution

    • SMP-4 (VD), Dual Die PCB-less solution

  • AEC-Q100 qualified (Grade-0)

  • Programmable with the PTC-04 and the PTC-04-DB-HALL06 daughterboard

Discover all features
Triaxis® mainstream rotary & linear position sensor (SENT) - MLX90422

Product description

The MLX90422 is a magnetic position sensor designed for use in cost-sensitive automotive applications including powertrain actuators, pedal positioning, fuel level gauges and transmission systems, though also suitable for industrial implementations. The MLX9042x devices have superior capabilities in terms of functional safety, Absolute Maximum Ratings (AMR) and electromagnetic compliance (EMC) characteristics. They also support operating temperature up to 160 °C.

The MLX90422 is pin-to-pin compatible with the previous generations of Triaxis® position sensor ICs?

The MLX90422 is a monolithic magnetic position processor ICs. 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 MLX90422 is sensitive to the three components of the magnetic flux density applied to the ICs (i.e. Bx, By and Bz). This allows the MLX90422 with the correct magnetic circuit to decode the absolute position of any moving magnet (e.g. rotary position from 0 to 360 Degrees). It enables the design of non-contacting position sensors that are frequently required for both automotive and industrial applications.

The MLX90422 supports rotary or linear motions, with a SENT output. SENT frames are encoded according to a Single Secure Sensor A.3 (H.4) or Dual Throttle Position Sensor A.1 (H.1) format. The circuit delivers enhanced serial messages providing error codes, and user-defined values. Programming the sensor, after assembly into the application, increases the accuracy of the system thanks to the multi-point programmable linearization function. The MLX90422 is compatible with the PTC-04 (DB-HALL06) for mass-production programming.

Application Examples

  • Pedal Position Sensor
  • Throttle Position Sensor
  • Ride Height Position Sensor
  • Transmission Position Sensor
  • Steering Wheel Position Sensor
  • Float-Level Sensor
  • Non-Contacting Potentiometer

ASIL Ready - Melexis

MLX90421 - MLX90422 - MLX90423 - MLX90425 - MLX90426 summary

Features and benefits

  • SENT output (SAE J2716 APR2016)

  • ISO 26262 ASIL-B SEooC (Safety Element out of Context)

  • Programmable measurement range

  • Programmable linear transfer characteristic with up to 17 points

  • Enhanced serial data communication

  • Operating temperature from -40°C to 160°C

  • Triaxis® Hall technology

  • On chip signal processing for robust absolute position sensing

  • Packages, RoHS compliant

    • SOIC-8 (DC) Single Die

    • TSSOP-16 (GO) Dual Die (redundancy)

    • DMP-4 (VS), Single Die PCB-less solution

    • SMP-3 (VE), Single Die PCB-less solution

    • SMP-4 (VD), Dual Die PCB-less solution

  • AEC-Q100 qualified (Grade-0)

  • Programmable with the PTC-04 and the PTC-04-DB-HALL06 daughterboard

Related tech talks

Automotive functional safety ISO 26262

Automotive functional safety ISO 26262

Within the increasing complexity of technologies in vehicles, the assurance of their proper functionality is becoming a major concern. Melexis follows the ISO 26262 to reduce the risks caused by systematic and random failures. Discover more about ASIL.
Read more
Position sensors for motor control feedback loop

Position sensors for motor control feedback loop

Electrical motors are complex systems. In this area there are motor drivers that can perfectly operate without a position sensor (sensorless). So why add extra component(s)?
Read more
Single Mold Package (SMP): compact generation of PCB-less solutions

Single Mold Package (SMP): compact generation of PCB-less solutions

This Single Mold Package (SMP) brings compactness and robustness. Discover the benefits of PCB-less solutions versus PCBA.
Read more
Triaxis: Unique Position Sensing Solution

Triaxis®: Unique sensing solution

An innovative magnetic sensor technology capable of very precise 3 axis magnetic field measurement from a single sensor.
Read more
Introducing the Hall-effect principle, a well-established phenomenon harnessed by Melexis sensor ICs.

What is the Hall-effect?

Introducing the Hall-effect principle, a well-established phenomenon harnessed by Melexis sensor ICs.
Read more

Videos

Melexis redefines the market with 3D magnetic position sensors (MLX9042x)

Product

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.

Magnetic position sensor ICs MLX90421 & MLX90422

Product

The MLX90421 and MLX90422 reinvent the Triaxis® Magnetic Position Sensor. The MLX90421provides Analog or PWM output while the MLX90422 offers a SENT output. The sensor ICs distinguishes themselves with functional safety, improved EMC, AMR and an extended operating temperature range.

Triaxis®: Unique position sensing solution

Product

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.

Melexis universal programmer for magnetic sensors (PTC-04)

How to

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

How to

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.

Practical applications

thumbnail BEV thermal management

BEV thermal management

In order to optimize energy while increasing the All-Electric Range (AER), a perfect thermal management system is key. Ideal performance of the battery requires a temperature between 20-40℃, no matter the external conditions. Without the heat source of a classical ICE, new sources for heating & cooling need to be optimized. Discover the different modes.

Read more
thumbnail BEV thermal management

BEV thermal management - heat cabin

In order to optimize energy while increasing the All-Electric Range (AER), a perfect thermal management system is key. Ideal performance of the battery requires a temperature between 20-40℃, no matter the external conditions. Without the heat source of a classical ICE, new sources for heating & cooling need to be optimized. Discover the different modes.

Read more
thumbnail BEV thermal management

BEV thermal management - heat battery

In order to optimize energy while increasing the All-Electric Range (AER), a perfect thermal management system is key. Ideal performance of the battery requires a temperature between 20-40℃, no matter the external conditions. Without the heat source of a classical ICE, new sources for heating & cooling need to be optimized. Discover the different modes.

Read more
thumbnail BEV thermal management

BEV thermal management - cool cabin

In order to optimize energy while increasing the All-Electric Range (AER), a perfect thermal management system is key. Ideal performance of the battery requires a temperature between 20-40℃, no matter the external conditions. Without the heat source of a classical ICE, new sources for heating & cooling need to be optimized. Discover the different modes.

Read more
thumbnail BEV thermal management

BEV thermal management - cool battery

In order to optimize energy while increasing the All-Electric Range (AER), a perfect thermal management system is key. Ideal performance of the battery requires a temperature between 20-40℃, no matter the external conditions. Without the heat source of a classical ICE, new sources for heating & cooling need to be optimized. Discover the different modes.

Read more
Application - ICE gasoline thumbnail

ICE gasoline after treatment

We always need to save energy by all means, so ICE after treatment optimization is of no question. Efficiency and emission reduction are essential results of ICE after treatment.

Read more
Application - ICE gasoline thumbnail

ICE gasoline fuel management

Fuel management is under pressure. Fuel economy and performance are crucial to the ICE efficiency. Discover the products which support the optimization of fuel management.

Read more
Application - ICE gasoline thumbnail

ICE gasoline air management

Air is to an ICE what air is to the human body. Therefore it is essential to manage it efficiently, especially because it leads to better performances and less emissions.

Read more
application thermal management PHEV thumbnail

PHEV thermal management

In order to optimize energy while increasing the All-Electric Range (AER), a perfect thermal management system is key. Melexis products enable higher system integration towards a safer and cost-effective thermal management, maximizing the AER and improving the driver experience.

 

Read more
Traction inverter and motor

Traction inverter & motor

In electric vehicles, the inverter converts DC power from the battery to AC power for the motor drive, which in turn transforms it into propulsion power. The efficiency of this system has a direct impact on the all-electric range, road performance and comfort.

 

Read more