Trade Shows
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| 26.02. - 28.02.2019, Nuremberg |
the world’s first pico-resolver
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
The MLX90381, Triaxis® pico-resolver, 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.
App
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.
The MLX90381 offers intelligent solutions for innovative products
It is optimized for robust motor design: smallest-footprint, programmable-at-module-level, cost-effective, and-ASIL-ready.
Application Diagram
Application
Absolute Rotary Position Sensor
Brushless Motor Control
Field-Oriented Motor Control
Features and Benefits
Smallest footprint 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
End-of-shaft / through-shaft operation
Package, RoHS Compliant: DFN-6 (LW) single die
Output refresh rate 2 µs
Ratiometric outputs
Measure rotational speeds of more than 50’000 e-rpm
(Electrical at Hall plates)
Operating supply voltage 3.3 V
Selectable magnetic field axis (X/Y - X/Z - Z/Y)
Programmable sensitivity range
Mid field (10…70mT)
High field (40…160mT)
