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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