Magnetics Business & Technology - January/February 2025 - 22

PRODUCT NEWS
Allegro Builds Magnetic Sensing Portfolio for Detecting Position and Current
New inductive position sensors, micropower magnetic switches and latches were introduced by Allego Microsystems at Electronica 2024 in
Munich.
Allegro Microsystems has introduced new magnetic sensing
products covering a range of applications for design engineers.
New inductive position sensors and a series of micropower
magnetic switches and latches were introduced by Allegro at
Electronica 2024 held in November in Munich. In September, it
launched two new current sensors utilizing its recently acquired
XtremeSense tunnel magneto resistance (TMR) technology -representing
the first TMR products launched since the company's
acquisition of Crocus Technologies.
Two inductive position sensors push the boundaries of position
sensing, offering a compact and economical alternative to traditional
resolvers and encoders used for motor position sensing.
The A17802 and A17803 high-resolution sensors with integrated
diagnostics perform consistently across a wide temperature
range, making them ideal for traction motors in electric vehicles
and servo motors in industrial automation and robotics.
The new micropower magnetic switches and latches can accomplish
position sensing with higher sensitivity options for enhanced
air gap tolerance, and ultra-low power consumption using 50%
less power than the company's existing micropower products.
They particularly address challenging battery-powered applications
in medical, consumer and industrial markets.
22 Magnetics Business & Technology * January/February 2025
" We are excited to announce our latest inductive position sensors
as we continue to drive innovation in sensing technology, " said
Ram Sathappan, Sr. Director, Global Marketing & Applications at
Allegro. " Our inductive sensors deliver high accuracy, advanced
diagnostics and connectivity options essential for safety-critical
traction motors in electric vehicles, while the magnetic switches
and latches enable designers to achieve reliable and energyefficient
position sensing in a variety of applications. "
The inductive position sensors are designed to optimize precise
contactless angle and motor position sensing. They enable
dynamic speed and torque control for smoother motion and can
accommodate a wide temperature range.
Design flexibility is a key feature of the magnetic switches and
latches. There is a wide offering of magnetic sensitivity options
ranging from stray field rejection to high sensitivity low magnetic
field use cases. The greater magnetic sensitivity options compensate
for mechanical misalignments and variations in magnetic
field strength allowing for wider airgap variation and total cost
savings.
Two new Xtreme TMR sensors can streamline high power
density designs, provide space and cost savings while improving
energy efficiency. The CT455 and CT456 feature high-bandwidth
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Magnetics Business & Technology - January/February 2025

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