Do you know about automotive-grade 3D Hall effect sensor IC?

What is an automotive-grade 3D Hall effect sensor IC? What does it do? Melexis, a global provider of microelectronic semiconductor solutions, announces the launch of the MLX90395 Triaxis® magnetometer node, an automotive-grade (AEC-Q100) monolithic sensor IC that The Hall effect can be exploited to provide three-dimensional contactless sensing capabilities. The MLX90395 dual-die version provides redundancy for demanding scenarios such as transmission shifter position sensing in automotive applications.

The functionality of the MLX90395 is defined through the system processor rather than hardwired into the device itself. The product has virtually no range limitations in terms of its suitability for position sensing.

The MLX90395 provides both I2C and SPI interfaces for easy integration in automotive or industrial control environments. Medium field (50 mT) and high field (120 mT) versions are available in three package options: SOIC-8, TSSOP-16 (dual die for redundancy) and QFN-16 (with wettable tin flank plating). All packaging options are AEC-Q100 qualified, operate over a wide temperature range (-40°C to 125°C), and are RoHS compliant.

Optional digital outputs provide 16-bit resolution for X, Y, and Z magnetic field measurements, allowing the host processor, DSP, microcontroller, or digital signal controller to decode the absolute position of the magnet as it passes the sensor IC.

Thanks to Melexis' Triaxis® technology, the MLX90395 is smaller and more energy efficient than other Hall effect sensor ICs. This innovative, proprietary technology helps achieve industry-leading low power consumption with reactive current of 1.4 μA, standby current of 2.4 μA, and supply current of 4 mA or less.

In addition to the magnetic field sensor that measures three magnetic fields (Bx, By, Bz), the MLX90395 also integrates a temperature sensor and a supply voltage monitor. Functionally, the sensor IC has three state machines and operates in one of three modes: single measurement mode, burst mode, and wake-on-change mode. Engineers can select the magnetic field to be measured and the frequency of measurement, further fine-tuning the sensor IC's energy efficiency and filtering and sampling times to optimize noise and bandwidth.

"MLX90395 represents a new approach to position sensing for the automotive and industrial markets that can redefine the way a wide range of applications are designed in HMI, pillars, center consoles and body controls." Melexis Global Marketing Manager, Position Sensor IC Nick Czarnecki said, "MLX90395 offers the advantages of high sensitivity and versatility with low power consumption and small size. Automakers can now benefit from this 3D magnetic node sensing solution that meets automotive regulatory requirements. .”

During runtime, operating modes can be defined and selected via the I2C or SPI interface, allowing multiple sensor ICs to form a cluster of sensor ICs controlled by a single microcontroller. In addition, a choice of bus protocols (SPI or I2C) is available, with SPI operating at frequencies up to 10 MHz and I2C operating at frequencies up to 1 MHz. During the manufacturing process, each sensor IC is assigned a unique 48-bit ID number, with additional space available for storing customer traceability information. The above is the analysis of automotive-grade 3D Hall effect sensor IC, I hope it can be helpful to everyone.