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A1157 Datasheet Two Wire Hall-Effect Switches

Manufacturer: Allegro MicroSystems

Download the A1157 datasheet PDF. This datasheet also includes the A1150 variant, as both parts are published together in a single manufacturer document.

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Note: The manufacturer provides a single datasheet file (A1150-AllegroMicroSystems.pdf) that lists specifications for multiple related part numbers.

General 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 theAllegro™ advanced BiCMOS wafer fabrication process, which implements a 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.

The A115x family has a number of automotive applications.

Overview

A1150, A1152, A1153, A1155, A1156, A1157, and A1158 Chopper-Stabilized, Two-Wire Hall-Effect.

Key Features

  • AEC-Q100 automotive qualified.
  • 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 to 24 V operation.
  • Solid-state reliability.
  • Robust EMC and ESD performance.
  • Industry-leading ISO 7637-2 pe.

More Datasheets from Allegro MicroSystems

Part Number Description
A1150 Two Wire Hall-Effect Switches
A1152 Two Wire Hall-Effect Switches
A1153 Two Wire Hall-Effect Switches
A1155 Two Wire Hall-Effect Switches
A1156 Two Wire Hall-Effect Switches
A1158 Two Wire Hall-Effect Switches
A1101 Continuous-Time Switch
A1102 Continuous-Time Switch
A1103 Continuous-Time Switch
A1104 Continuous-Time Switch