A31102是一种特别可配置和坚固的解决方案，用于最苛刻的线性磁场传感应用，包括电子动力转向（EPS）中的扭矩感测。亚博尊贵会员
Two key features of the A31102 are the low noise output and capability to provide a highly linear device output even with nonlinear input magnetic fields. To achieve this, each BiCMOS monolithic integrated circuit includes the following: a Hall sensing element, an ultra-low noise front end amplifier, proprietary dynamic offset cancellation circuits, on-chip stress compensation circuitry, a 16-bit analog-to-digital converter (ADC), and a highly flexible digital signal path that includes precision temperature compensating circuitry to reduce the intrinsic sensitivity and offset drift of the Hall element, advanced output linearization circuitry and advanced diagnostic detection features. It also includes on-chip EEPROM for storing all necessary factory- and customer-programmable parameters to correctly configure each device.
A31102是根据Allegro的第三方认证ISO 26262：2011兼容的开发过程制定的，因此是EPS Torqu感应等安全关键应用的理想选择。亚博尊贵会员A31102双模选口（DD）设计以满足ASIL D要求，A31102单模选项是设计，以满足ASIL B要求，当A31102中规定的方式结合使用适当的系统级控制时安全手册。与您的安全手册一样，请联系当地的Allegro销售代表，更详细的功能安全相关文件。
The A31102 contains two proprietary SENT protocols in addition to SAEJ2716—SSENT and ASENT. Both protocols enable the user to attach up to four devices on one SENT line to reduce system costs. SSENT allows sequential access to the sensors connected to the same line. SSENT provides a very low overhead method to maximize the sensor bandwidth on this single SENT line, minimizing impact on system performance. ASENT allows direct addressable access to all the sensors on the common SENT line. Both protocols allow individual sensors on the same line to enter diagnostic mode while the other sensors continue to respond to queries, allowing for the highest diagnostic coverage while maintaining 100% availability of the sensor solution.
The A31102 is available in a surface-mount, lead (Pb) free 14-pin TSSOP package (LU suffix), with 100% matte-tin leadframe plating.
The A31102 complies with the requirements of EU Directive 2002/95/ EC (RoHS) and 2011/65/ EU (RoHS II), amended by 2015/863/ EU, on the Restriction of the use of certain Hazardous Substances in electrical and electronic equipment.
