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A1131 - Two-Wire Unipolar Vertical Hall-Effect Switches

Download the A1131 datasheet PDF. This datasheet also covers the A1130 variant, as both devices belong to the same two-wire unipolar vertical hall-effect switches family and are provided as variant models within a single manufacturer datasheet.

General Description

The A1130, A1131, and A1132 are vertical Hall-effect sensor ICs developed in accordance with ISO 26262:2011.

Key Features

  • ISO 26262:2011 compliant.
  • Achieves ASIL B as a stand-alone component.
  • A2-SIL™ documentation available including FMEDA and Safety Manual.
  • Continuously operating background diagnostics.
  • Integrated regulator undervoltage monitor.
  • Magnetic sensing parallel to surface of package.
  • Internal current regulator for two-wire operation.
  • Highly sensitive unipolar switch thresholds.
  • Operation down to 3 V.
  • Selection of t.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (A1130-Allegro.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
A1101 Continuous-Time Switch Allegro MicroSystems
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A1102P Dolby-B Type Noise Reduction System Sony
A1103 Continuous-Time Switch Allegro MicroSystems
A1103 Unipolar Hall-Effect Digital Switch SEC

Other Datasheets by Allegro MicroSystems

Part Number Description
A1130 Two-Wire Unipolar Vertical Hall-Effect Switches
A1132 Two-Wire Unipolar Vertical Hall-Effect Switches
A1120 Chopper-Stabilized Precision Hall-Effect Switches
A1121 Chopper-Stabilized Precision Hall-Effect Switches
A1122 Chopper-Stabilized Precision Hall-Effect Switches

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
A1130, A1131, and A1132 2 - Two-Wire Unipolar Vertical Hall-Effect Switches with Advanced Diagnostics FEATURES AND BENEFITS • ISO 26262:2011 compliant □ Achieves ASIL B as a stand-alone component □ A2-SIL™ documentation available including FMEDA and Safety Manual □ Continuously operating background diagnostics □ Integrated regulator undervoltage monitor • Magnetic sensing parallel to surface of package • Internal current regulator for two-wire operation • Highly sensitive unipolar switch thresholds • Operation down to 3 V • Selection of temperature coefficients (TC) to match magnet properties • Small package sizes, 3-pin SOT23W and SIP • Automotive-grade ruggedness □ Qualified per AEC-Q100 □ Internal protection circuits enable 40 V load dump compliance □ Operation up to 165°C junction