MagAlpha MA100
Angular Sensor for Brushless Motor
Commutation with Side-Shaft
Positioning Capability
DESCRIPTION FEATURES
The MagAlpha MA100 magnetic sensor is an all- UVW Signals for Block Commutation
in-one solution designed to replace Hall switches
11-Bit Resolution Absolute Angle Encoder
for 3-phase block commutation in brushless DC
500kHz Refresh Rate
motors. The MA100 detects the absolute angular
Ultra-Low Latency: 3s
position of a permanent magnet, typically a
SPI Serial Interface
diametrically magnetized cylinder attached to the
Built-In Linearization for Side-Shaft
rotor. The data acquisition and processing is
Topologies
extremely fast, allowing for accurate angle
3.3V, 7.7mA Supply
measurement at speeds from 0 to 100,000 RPM.
Available in a QFN-16 (3mmx3mm) Package
The MA100 supports a wide range of magnetic
APPLICATIONS
field strengths and spatial configurations, which
help relax mechanical tolerances and simplify
PSM/BLDC Motors
system design. Both end-of-shaft magnet and off-
All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive. For
MPS green status, please visit the MPS website under Quality Assurance. MPS
axis magnet positioning (side-shaft mounting)
and The Future of Analog IC Technology are registered trademarks of
topologies are supported.
Monolithic Power Systems, Inc.
Please See Position Sensor Design Support for All
Supporting Software
TYPICAL APPLICATION
MA100 Rev. 1.2 www.MonolithicPower.com 1
7/3/2018 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
2018 MPS. All Rights Reserved.
NOT RECOMMENDED FOR
NEW DESIGNS
REFER TO MA102MA100 ANGULAR SENSOR FOR BLDC COMMUTATION W/ SIDE-SHAFT CAPABILITY
ORDERING INFORMATION
Part Number* Package Top Marking
MA100GQ QFN-16 (3mmx3mm) See Below
* For Tape & Reel, add suffix Z (e.g. MA100GQZ)
TOP MARKING
y: year code
O: Optional marking
LLL: Lot number
PACKAGE REFERENCE
TOP VIEW
QFN-16 (3mmx3mm)
MA100 Rev. 1.2 www.MonolithicPower.com 2
7/3/2018 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
2018 MPS. All Rights Reserved.
NOT RECOMMENDED FOR
NEW DESIGNS
REFER TO MA102