Tessenderlo, Belgium 14 November 2024 – Melexis introduces
the MLX92235,
an ultra-low power Hall-effect switch with best-in-class tolerances for reliable and
predictable output update rate. This tiny device is a game-changer for automotive
micropower applications such as door handles, e-latches, sun visors, infotainment
buttons, brake light switches, and more.
For modern vehicles, accurate switch and latch mechanisms are relied upon
by countless systems for feedback. With numerous switches deployed across cars, it
is also important to ensure that they operate efficiently, minimizing power draw.
Every microwatt counts. Melexis’ MLX92235 microwatt
switch effectively addresses these requirements with 4 product variants. Featuring
industry-leading accuracy, consistency, and reliability, the 3-wire monolithic
magnetic switches ensure optimal performance throughout the vehicle lifespan.
In order to minimize board space utilization, the MLX92235 does not require
any external components and is offered in a standard automotive TSOT23-3L package.
In demanding vehicular environments, its reliable operation is ensured by the wide
operating temperature range of -40oC to 105oC. Moreover, the inclusion of flexible
input voltage, choice of magnetic threshold, temperature coefficient, update rate,
and output options (push-pull or open drain) facilitates seamless integration into
various vehicle systems.
The MLX92235’s advanced power design incorporates integrated logic that
enables automatic sleep/awake sequencing delivering a typical sleep current
consumption of 0.65μA at 1.8V. Furthermore, the MLX92235 includes selectable sleep
time from 0.6ms to 800ms.
As a highly sensitive chopper stabilized Hall Sensor, the MLX92235 provides
accurate and contactless feedback in a range of magnetic functions, including
unipolar/omnipolar switch or latch deployments. The MLX92235’s versatility,
compactness, and efficiency make it a valuable asset for automotive designers, where
its feedback can be harnessed to develop intelligent vehicle functions, such as the
automated activation of ambient lighting when opening a door or sun visor.
“With the new MLX92235 we have delivered contactless Hall effect
reliability and accuracy in a low power design to replace all mechanical switches in
a car,” stated Minko Daskalov, Product Line Manager at Melexis. “It will help
automotive engineers to bring intelligence to a wide range of automotive switch and
latch functions, ultimately benefiting the end-user.”
Samples for the MLX92235 are available now. To discover more, please visit
www.melexis.com/MLX92235
