A1333
Overview
The A1333 is a 360° angle sensor IC that provides contactless high-resolution angular position data based on magnetic circular vertical Hall (CVH) technology. It has a system-onchip (SoC) architecture that includes: a CVH front end, digital signal processing, and motor commutation (UVW) or encoder outputs (A, B, I).
- Contactless 0° to 360° angle sensor IC, for angular position, rotational speed, and direction measurement □ Capable of sensing magnet rotational speeds targeting 12-bit effective resolution with 900 G field □ Circular vertical Hall (CVH) technology provides a single-channel sensor system supporting operation across a wide range of air gaps
- Developed in accordance with ISO 26262 requirements for hardware product development for use in safetycritical applications □ Single die version designed to meet ASIL B requirements when integrated and used in conjunction with the appropriate system-level control, in the manner prescribed in the A1333 Safety Manual □ Dual-die version designed to meet ASIL D requirements when integrated and used in conjunction with the appropriate system-level control, in the manner prescribed in the A1333 Safety Manual
- High diagnostic coverage □ On-chip diagnostics include logic built-in self-test (LBIST), signal path diagnostics, and watchdogs to support safety-critical (ASIL) applications □ 4-bit CRC on SPI
- On-chip EEPROM for storing factory and customer calibration parameters □ Single-bit error correction, dual-bit error detection through the use of error correction control (ECC) Continued on next page...
