MA120GQ-Z Datasheet, PDF (1/14 Pages) MPS Industries, Inc. – Angular Sensor for 3-Phase Brushless Motor Commutation

MagAlpha
MA120
Key features
U V W signals for block commutation
Adjustable zero
500 kHz refresh rate
Ultra low latency: 3 µs
Serial interface for settings
8.5 mA supply current
Angular Sensor for 3-Phase
Brushless Motor Commutation
General Description
The MagAlpha MA120 is a magnetic sensor designed
to replace the 3 Hall switch solutions for 3 phases
block commutation in brushless dc motors. The IC
detects the absolute angular position of a permanent
magnet, typically a diametrically magnetized cylinder
attached to the rotor. The MagAlpha is an extremely
fast acquisition and processing sensor, allowing
accurate angle measurement at speeds from 0 to
120’000 RPM.
QFN-16 3x3mm package
Since the measurement is spatially confined, the user
has flexibility in terms of magnet shapes and
configurations. This can help relaxing mechanical
tolerances.
Figure 1: Functional Block Diagram
Monolithic Power Systems, Inc. | Gland, Switzerland | Tel: [phone] | [e-mail] | www.sensimatech.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. © 2014 Monolithic Power Systems. All Rights
Reserved. MA700 Rev 1.0 September 2014
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