Chopper-Stabilized Unipolar Hall-Effect Switches

The A3241 and A3242 integrated circuits are unipolar Hall-effect switches with digital outputs. These sensors are suited for operation over extended temperature ranges, up to +150°C. Superior high-temperature performance is made possible through an Allegro® patented dynamic offset cancellation, which reduces the residual offset voltage normally caused by device overmolding, temperature excursions, and thermal stress.

Features and Benefits

■ Chopper stabilization

• Superior temperature stability

• Extremely low switchpoint drift

• Insensitive to physical stress

■ Reverse battery protection

■ Output short circuit protection

■ Solid state reliability

■ Small size

■ Robust EMC capability

■ High ESD ratings (HBM)

A3241ELHLT-T属于传感器，变送器 > 磁性传感器 - 开关（固态）。Allegro MicroSystems制造生产的A3241ELHLT-T磁性传感器 - 开关（固态）该系列产品使用固态技术来检测是否存在超过某个特定幅度和/或标示的磁场，并提供指示是否存在此类磁场的双态输出。它们与磁簧开关以及线性或罗盘型固态器件不同，前者通过使用移动机械部件来提供类似的功能，后者提供指示所施加磁场的强度和/或方向的可变输出。