Melexis MLX90381 3D Magnetic Resolvers
Melexis MLX90381 3D Magnetic Resolvers measure rotational speeds of 50’000 e-rpm (Electrical at Hall plates). The Melexis Resolvers are optimized for robust motor design and are programmable at the module level. The devices are cost-effective and ASIL-ready. The MLX90381 is a monolithic contactless sensor IC sensitive to the flux density applied to the IC in three dimensions (X, Y, Z). 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.
Features
- Onboard programming through the I2C protocol
- Programmable at a module level
- ISO 26262 ASIL B SEooC (Safety Element out of Context)
- AEC-Q100 Qualified
- Triaxis® Hall technology
- Sine and Cosine analog outputs
- Output refresh rate 2µs
- Ratiometric outputs
- Operating supply voltage 3.3V
- Operating temperature from -40°C to 160°C
- Selectable magnetic field axis (X/Y - X/Z - Z/Y)
- Programmable sensitivity range
- mid field (10…70mT)
- high field (40…160mT)
- End-of-shaft / through-shaft operation
- Package, RoHS Compliant DFN-6 (LW) single die
Applications
- Brushless Motor Control
- Permanent Magnet Synchronous Motor
- Brushless DC Motor (BLDC)
- Absolute Rotary Position Sensor
- Field-Oriented Motor Control
Videos
Additional Resources
- Application Note: MLX90381 End of Line Calibration
- Application Note: MLX90381 Example I²C Communication Protocol
- Application Note: MLX90381 I²C Communication Protocol for EoL Calibration
- Application Note: Sensors for Motor Control Feedback Loops
- Triaxis® Position Sensors Selection Guide for Automotive Market
Related Application
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Designed to enhance efficiency, precision, and adaptability in Robotics applications.
公開: 2022-06-29
| 更新済み: 2025-04-30