Melexis NV announced the release of MLX90381, the world’s first pico-resolver on 30-June-2022.The MLX90381 is anew 3D magnetic resolver optimized for robust motor design: smallest footprint, programmable at module level, cost-optimized and ASIL-ready.
When combining it with Melexis LIN motor driverfamily, the result is a convenient Sense & Drive solution for actuation and position sensing that helps customers tackle a wide variety of challenges like miniaturization, safety and programmability.
Key features
Smallest footprint with DFN-6 package (2 x 2.5 mm2)
- Onboard programming through I2C protocol
- Programmable at 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 2 µs
- Ratiometric outputs
- Operating supply voltage 3.3 V
- 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
- Absolute Rotary Position Sensor
- Brushless Motor Control
- Permanent Magnet Synchronous Motor
- Brushless DC Motor (BLDC)
- Field-Oriented Motor Control
The MLX90381 is easy to use in rotor position detection. It improves the low-speed accuracy, noise performance and supports stall detection. It can be used with DC, brushless DC (BLDC) and permanent magnet synchronous motors (PMSM) in applications such as e-valves and e-bike motors.
It can be used in automotive safety-related systems as it is AEC-Q100 qualified and ASIL B ready (Safety Element out of Context according to ISO 26262).
For more information, please visit
Product Flyer:
https://www.melexis.com/en/documents/documentation/product-flyers/product-flyer-mlx90381
Datasheet:
https://www.melexis.com/en/documents/documentation/datasheets/datasheet-mlx90381 Updated selection guide:
https://www.melexis.com/-/media/files/documents/selection-guides/triaxis-hall-automotive-selection-guide-melexis.pdf