ALLEGRO A33002LLEATR

A33002 is a 360° angle sensor IC that provides non-contact, high-resolution angular position data based on magnetic Circular Vertical Hall (CVH) technology. It features a System-on-Chip (SoC) architecture comprising: a CVH front end, digital signal processing for calculating angular position data, and selectable output protocols (SPI, SENT, or PWM). It also incorporates on-chip EEPROM technology supporting up to 100 read/write cycles for flexible programming of calibration parameters. The A33002 is ideal for automotive applications requiring 0° to 360° angle measurement, such as Electric Power Steering (EPS), transmission actuators, and brushless DC pumps. The A33002 includes on-chip 32-segment linearization. This can be used to calibrate errors caused by misalignment between the magnet and sensor, or incomplete magnetization of the target magnet (which may manifest as magnet-to-sensor misalignment). The A33002 supports customer integration into safety-critical applications. The A33002 is available in a single-die or dual-die 14-pin TSSOP package (suffix LE). The package is lead-free with 100% matte tin plated leadframe. The 1 mm slim package minimizes the air gap between the CVH transducer and the target magnet.

• Power loss indicated by reset flag
• 10 MHz SPI for low-latency angle and diagnostic data; supports multiple independent ICs on the same bus
• 4-bit CRC
• Multiple programming/configuration formats supported
• Full system control and programming via SPI or Manchester protocol, including EEPROM write
• Read/write operations via VCC and VOUT pins for pin-limited systems
• 1 mm slim SMT TSSOP package minimizing target magnet-to-CVH transducer air gap for improved field strength

• Non-contact 0° to 360° angle sensor IC for angular position, rotational speed, and direction measurement
• 12-bit effective resolution magnetic sensing at up to 900G field strength
• Circular Vertical Hall (CVH) technology provides a single-channel sensor system independent of air gap
• On-chip 32-segment linearization for improved angular accuracy
• Reduced sensitivity to magnet-sensor misalignment
• Reduced sensitivity to incomplete magnetization of target magnet
• Developed per ISO 26262 hardware product development requirements for safety-critical applications
• Single-chip version designed to meet ASIL B requirements when integrated and used with appropriate system-level controls as specified in the A33002 Safety Manual
• Dual-chip version designed to meet ASIL D requirements when integrated and used with appropriate system-level controls as specified in the A33002 Safety Manual
• Selectable digital output format: SPI, SENT, or PWM
• Programmable via Manchester encoding on VCC line (user-to-device) and VOUT line (device-to-user), minimizing external wiring
• SENT output compliant with SAE J2716 JAN2010 with Allegro proprietary enhancements
• Customer-programmable SENT tick time range: 0.5 to 7.9μs
• On-chip EEPROM for factory and customer calibration parameter storage
• Integrated charge pump enables in-application programming without supplying high voltage to the device during programming
• Single-bit error correction, double-bit error detection with Error Correction Code (ECC)
• Designed for operation in harsh conditions required by automotive and industrial applications
• Operating temperature range: -40°C to 150°C
• Operating supply voltage range: 3.7 to 5.5V, absolute maximum 28V