Melexis Announces World's First Dual Die Latch and Switch Sensor

Melexis today announced a new line of magnetic latches and switch sensors that are the world's first to integrate two silicon dies in the same package. These extremely reliable devices are designed for automotive applications including gearboxes, power steering, brakes and locks/latches, marking a significant advance in magnetic induction technology.

By integrating two ICs into a single package, Melexis can provide redundancy that is critical to meeting automotive market reliability requirements. This also means significant improvements in accuracy – because the sensitive points are tighter than discrete devices housed in separate packages. The first products with this innovative packaging concept are the MLX92292 and MLX92232.

The MLX92232 is a second-generation programmable Hall-effect sensor designed using state-of-the-art mixed-signal CMOS technology. This dual-die device integrates a voltage regulator, Hall sensing (with advanced offset cancellation system) and an open-drain output driver, all in one package. It is available in 4-pin vias.

Complementing the 3-wire μPower Melexis MLX92292, which is available in an 8-pin surface mount SO-8 package. It provides the intended switching function, but unlike existing products on the market, it can determine the presence of a transverse magnetic field around it, not just orthogonal. This unique product supports ASIL B functional safety (in accordance with ISO 26262) and has an array of built-in diagnostic mechanisms that provide extremely reliable operation for automotive applications.

Both products can be pre-programmed to meet specific application requirements. In addition, OEM customers can benefit from the flexibility of factory programming to complete complete system optimization on their own production lines. The programming function also sets the two magnetic operating points to small increments from -90mT to + 90mT (the lateral sensing version is -40mT to + 40mT).

Dieter Verstreken, Melexis Latch and Switch Product Manager, commented: "At Melexis, we are pleased to be the first to offer dual die latch and switching technology to the market. While standard and configurable products are available for most applications. But we now have the ability to develop more advanced customizations to solve the most demanding automotive design challenges."

Author：Brittany Antonia （The author of article owns the copyright.）