AAS33001：具有增量和电机换向输出和片上线性化的精密角度传感器IC

The AAS33001 is a 360° angle sensor IC that provides contactless high-resolution angular position information based on magnetic circular vertical Hall (CVH) technology. It has a system-on-chip (SoC) architecture that includes: a CVH front end, digital signal processing to calculate the angular position information, and multiple output formats: serial protocol (SPI), pulse-width modulation (PWM), and either motor commutation (UVW) or encoder outputs (A, B, I). It also includes on-chip EEPROM technology, capable of supporting up to 100 read/write cycles, for flexible programming of calibration
parameters.

The AAS33001 is ideal for automotive applications requiring 0° to 360° angle measurements, such as electronic power steering (EPS), electronic power braking (EPB or IDB), transmission actuators, and BLDC pumps.

AAS33001包括片上32段线性化。这可以用于校准由于磁体和传感器之间的错位或目标磁体的不完美磁化而校准误差（其可以将其自身作为磁体的未对准到传感器上）。

AAS33001支持客户集成到安全关键应用中。亚博尊贵会员

AAS33001可在双模24针ETSOP和单芯14针TSSOP封装中提供。封装是铅（Pb），用100％哑光锡引线框架电镀。1 mm薄封装可降低CVH换能器和目标磁体之间的最小气隙。AAS33001设备与A1333兼容，以便易于迁移。

AAS33001 was developed in accordance with ISO 26262:2011 as a hardware safety element out of context. The single die version was designed with ASIL B capability (pending assessment), and the dual die version designed to meet ASIL Dcapability (pending assessment), for use in automotive safety-related systems when integrated and used in the manner prescribed in the applicable safety manual and datasheet.

• 接触式0°至360°角传感器IC，用于角度位置，转速和方向测量
  • 能够感测磁铁转速，瞄准12.5位有效分辨率，具有300g磁场;更高的有效分辨率可能在更高的场强
  • 圆形垂直大厅（CVH）技术提供单通道传感器系统，具有气隙独立性
• 片上32段线性化以提高角度精度
  • 减少磁体对传感器未对准的影响
  • Reduces impact of imperfect magnetization of target magnet
• Developed as a Safety Element out of Context (SEooC) in accordance with ISO 26262:2011 requirements for hardware product development for use in safety-critical applications (pending assessment).
• High diagnostic coverage
  • 片上诊断包括逻辑内置自检（LBist），信号路径诊断和看门狗，以支持安全关键应用程序亚博尊贵会员
  • 4-bit CRC on SPI
• On-chip EEPROM for storing factory and customer calibration parameters
  • Single-bit error correction; dual-bit error detection, error correction control (ECC)
• Supports operating in harsh conditions required for automotive and industrial applications, including direct connection to 12 V battery
  • Operating temperature range from –40°C to 150°C
  • Operating supply voltage range from 3.7 to 18 V, absolute maximum of 28 V continuous
    ♦可以支持ISO 7637-2脉冲5B，最多39 V
• 支持易于系统集成的多种输出格式
  • ABI and UVW interfaces provide high resolution and lowest latency angle information
  • PWM接口为ABI / UVW接口提供初始位置
  • 10 MHz SPI for low latency angle and diagnostic information; enables multiple independent ICs to be connected to same bus
    ♦可以支持5 V SPI
  • Output resolution on ABI and UVW are selectable
• Multiple programming/configuration formats supported
  • 系统可以完全控制和编程在SPI上，包括EEPROM写入
  • 对于可用引脚有限的系统，可以通过VCC和PWM引脚进行写入和读数。这允许为仅连接ABI / UVW和PWM引脚的设备配置生产线中的EEPROM。
• 1 mm thin surface-mount TSSOP packages for both single and dual die versions to minimize air gap from target magnet to CVH transducer for improved field strength
  • Pin-compatible to single and dual die A1333 devices
  • Stacked dual die construction to improve channel-to-channel matching for systems that require redundant sensors