MA302: Angular Sensor for 3-Phase Brushless Motor Commutation and Position Control with Side-Shaft Positioning Capability, 12bit

The MagAlpha MA302 represents the latest generation of MagAlpha technology adding higher resolution and additional features.

The MagAlpha MA302 represents the latest generation of MagAlpha technology adding higher resolution and additional features. It is optimized for high dynamic response and is suited to applications that experiencerapid speed change and the need to support high rotation speeds. Examples include high-speed brushless or synchronous reluctance motors in servo applications.

The digital conditioning block is optimized to maintain the highest resolution over different operating conditions. Speeds of over 100kRPM are supported on the SPI, ABZ, and UVW interfaces. End and side shaft topologies are supported.

The MA302 detects the absolute angular position of a permanent magnet, typically a diametrically magnetized cylinder on a rotating shaft. Fast data acquisition and processing provide accurate angle measurement at speeds from 0 to more than 100,000 RPM. The MA302 supports a wide range of magnetic field strengths and spatial configurations. Both end-of-shaft and off-axis (side-shaft mounting) configurations are supported. The MA302 features magnetic field strength detection with programmable thresholds to allow sensing of the magnet position relative to the sensor for creation of functions such as sensing of axial movements or for diagnostics. On-chip non-volatile memory provides storage for configuration parameters including the reference zero angle position, ABZ encoder settings, UVW pole pair emulation settings, and magnetic field detection thresholds.

Vor evaluation a knob kit as well as test boards are available.

EVKT302-KNOB, EVKT-MACOM, TBMA-LT, TBMA-RD, MA302

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