Description

The A1150, A1152, A1153, A1155, A1156, A1157, and A1158 comprise a family of two-wire, unipolar, Hall-effect switches, which are factory-trimmed to optimize magnetic switchpoint accuracy. These devices are produced on the Allegro® advanced BiCMOS wafer fabrication process, which implements a patented high frequency, 4-phase, chopper-stabilization technique. This technique achieves magnetic stability over the full operating temperature range, and eliminates offsets inherent in devices with a single Hall element that are exposed to harsh application environments.

Features and Benefits

▪ High speed, 4-phase chopper stabilization

▪ Low switchpoint drift throughout temperature range

▪ Low sensitivity to thermal and mechanical stresses

▪ On-chip protection

▫ Supply transient protection

▫ Reverse battery protection

▫ On-board voltage regulator

▫ 3.0 to 24 V operation

▪ Solid-state reliability

▪ Robust EMC and ESD performance

▪ Industry leading ISO 7637-2 performance through use of proprietary, 40-V clamping structures

A1157属于传感器，变送器 > 磁性传感器 - 开关（固态）。Allegro MicroSystems制造生产的A1157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。