Stray Field Immune, High-Speed, Hall-Effect Angle Sensor IC for Electrified Vehicles in Single and Dual Die Package

The A33023 and the A33023-DD are 360° angle sensor ICs that provides contactless high-resolution angular position information based on magnetic sensing technology. The A33023 is a system-on-chip (SoC) architecture that includes angle sensing, digital signal processing, and various output options: SPI, PWM, motor commutation (U,V,W), and encoder outputs (A, B, I). Also integrated in the device is on-chip EEPROM technology, capable of supporting a high number of read/write cycles, for flexible end-of-line programming of calibration parameters.

The low 25 μs latency of the A33023 makes it ideal for automotive applications requiring fast 0° to 360° angle measurements, such as electronic power steering (EPS), seatbelt motor systems, transmission actuators, shift-by-wire systems, electronic braking systems, and throttle systems. The A33023 is targeting single-die and dual-die ASIL D compliance when used in conjunction with appropriate system-level controls.

The A33023 also includes integrated linearization features. This allows the A33023 to correct for misalignment between the IC and the target magnet with minimal added latency. The A33023 is available in a single-die 14-pin TSSOP (suffix LE) and a dual die 24-pin eTSSOP (suffix LP) package. Both packages are lead (Pb) free with 100% matte-tin lead frame plating. The A33023 is qualified to AEC-Q100 grade 0.