Triaxis® Magnetic pico-resolver
The MLX90381 offers intelligent solutions for innovative products. Beyond small, the world’s first pico-resolver. High-speed operation and flexible positioning thanks to proven Triaxis® technology. It is optimized for robust motor design: smallest-footprint, programmable-at-module-level, cost-effective, and-ASIL-ready.
With a wide operating temperature and magnetic flux density range, the MLX90381 can resolve the angular position of a rotating axis over 360 degrees in many industrial and automotive applications. With a low response time and latency, the MLX90381 can measure rotational speeds of more than 50’000 e-rpm (Electrical at Hall plates).
Application
- Reed switch replacement
- Direct load driving
- Fluid level meter applications
- Applications for level measuring devices
- High-Side / Low-Side switch
Design
The MLX90381 is a 3D magnetic resolver IC measuring rotational speeds of 50’000 e-rpm (Electrical at Hall plates). It is optimized for robust motor design: smallest footprint, programmable at module level, cost-effective and ASIL-ready.
Develope
Is a monolithic contactless sensor IC sensitive to the flux density applied in three dimensions (X, Y, Z) to the IC. Two, selectable, axes can be mapped to the two high-speed analog outputs allowing the MLX90381 to be used for on-axis and off-axis (through-shaft) position sensing when paired with a moving permanent magnet.
Application
With its 3.3V supply, high speed, small size, and flexible configuration the MLX90381 is ideal for use in motor control applications when paired with a suitable microcontroller.
Features
- Normal or lateral magnetic sensitivity options X (Y) or Z
- Output current up to 100 mA (AMR 200 mA)
- Operating temperature from -40°C to 150°C
- Package RoHS compliant TSOT-6L
- Output isolated from the supply voltage Silicon-on-Insulator (SOI) OUTA/OUTB potentials can be below GND or above VDD
- Programmable magnetic thresholds and threshold temperature coefficient
- Low average supply current – 180μA typical
- Built-in daisy-chain functionality to synchronize multiple ICs
- Programmable magnetic Latch, Unipolar and Omnipolar Switch function
- Typical R_on of 3Ω
- Operating voltage range from 4.5V to 28V
- Under-Voltage Reset protection
- Thermal protection
Martin Wesseling Line Managing Sense This email address is being protected from spambots. You need JavaScript enabled to view it.
T: +49 (0) 2129 376-216