DESCRIPTION

· The AK7451 is a monolithic magnetic rotational angle sensor IC with a built-in Hall element, designed for non-contact rotation angle sensing with a diametrically magnetized two-pole magnet.

· It detects the magnetic field parallel to the IC package surface, outputting both absolute and relative angular positions.

· Utilizing a transverse magnetic field detection method with a magnetic flux concentrator, it offers excellent axial misalignment immunity.

· With a Zero Latency architecture and tracking servo system, it supports speeds up to 20,000rpm, making it suitable for motor drive and encoder applications.

FEATURES

· Monolithic integrated 360-degree angle sensor IC with a Hall element.

· Easy to configure as a contactless rotation sensor with a two-pole magnet.

· Interfaces include SPI (absolute angle), ABZ phase output (incremental), and UVW phase output.

· 12-bit angle resolution with less than ±0.6° accuracy at 25°C.

· Maximum tracking speed of 333 rps (20,000 rpm) with an angle output delay time of 1.8 µs.

· Operates in ambient temperatures from -40 to 125°C.

· Features various abnormal detection and setting functions, including angle zero point, rotation direction, and ABZ resolution/hysteresis.

APPLICATIONS

· Suitable for various motor drive applications.

· Ideal for encoder applications requiring high-speed and accurate angle detection.