3D Triaxis dual latch low voltage

The MLX92253 is a Hall-effect dual latch designed in CMOS technology.

The device integrates a voltage regulator, two Hall sensors with offset cancellation and two open-drain outputs in a single package.

The two Hall sensors, one sensing the Z axis and one sensing the X axis, are integrated on the same silicon with two independent signal tracks and a common magnetic center. The two-speed outputs have a 90° phase shift regardless of magnet pole pitch, giving more freedom in magnetic design and faster reuse across platforms.

Each speed output can be switched ON (LOW state) or OFF (HIGH state) by applying a sufficiently strong positive (South) or negative (North) magnetic field on one of the axes. OUT1 is sensitive to the magnetic field on the Z axis, while OUT2 is sensitive to the magnetic field on the X axis. Without magnetic field, the device will keep its last state.

The start-up feedback function can be used to turn the two outputs into inputs during Power-On. This function enables the customer to recover the last known state of the IC prior to power-down in order to never miss a turn. The microcontroller should provide the necessary inputs at the starting point.

The MLX92253 is delivered in a green-compliant 5-pin Thin Small Outline Transistor (TSOT) package for surface-mount applications. It is also available on request as engineering samples in a VA package.

Applications:

• Linear speed & direction detection: window lifters and closures with anti-pinch features, power lift gates
• Rotation speed & direction detection: cadence sensor for e-bikes, fans, valves
• Angular position detection: knobs, jog wheels, DC motor indexing