Description

The A3425 is a dual–output-channel, bipolar switch with each channel comprising a separate complete Hall-effect sensor circuit with dedicated Hall element and separate digital output for speed and direction signal processing capability. The independent Hall elements (E1 integrated with OUTPUTA, and E2 integrated withOUTPUTB) are photolithographically aligned to better than 1 μm. Maintaining this accurate mechanical location between the two active Hall elements eliminates the major manufacturing hurdle encountered in fine-pitch detection applications.

Features and Benefits

▪ Two matched Hall effect switches on a single substrate

▪ Sensor Hall element spacing approximately 1 mm

▪ Superior temperature stability

▪ 3.3 to 18 V operation

▪ Integrated ESD diode from OUTPUT and VCC pins to GND

▪ High-sensitivity switchpoints

▪ Robust structure for EMC protection

▪ Solid-state reliability

A3425EK-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A3425EK-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。