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A1146 - Ultrasensitive Two-Wire Chopper-Stabilized Unipolar Hall Effect Switches

Download the A1146 datasheet PDF. This datasheet also covers the A1145 variant, as both devices belong to the same ultrasensitive two-wire chopper-stabilized unipolar hall effect switches family and are provided as variant models within a single manufacturer datasheet.

General Description

The A1145 and A1146 devices are two-wire, unipolar, Hall effect switches that are factory-programmed at end-of-line to optimize ultrasensitive magnetic switchpoint accuracy.

Key Features

  • Chopper stabilization ▫ Low switchpoint drift over operating temperature range ▫ Low sensitivity to stress.
  • Factory programmed at end-of-line for optimized switchpoints.
  • On-chip protection ▫ Supply transient protection ▫ Reverse-battery protection ▫ On-board voltage regulator ▫ 3.5 to 24 V operation Packages: 3 pin SOT23W (suffix LH), and 3 pin SIP (suffix UA).

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (A1145_AllegroMicroSystems.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number A1146
Manufacturer Allegro MicroSystems
File Size 307.04 KB
Description Ultrasensitive Two-Wire Chopper-Stabilized Unipolar Hall Effect Switches
Datasheet download datasheet A1146 Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
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A1142 Sensitive Two-Wire Chopper-Stabilized Unipolar Hall Effect Switches Allegro
A1142 Silicon PNP Power Transistors SavantIC
A1143 Sensitive Two-Wire Chopper-Stabilized Unipolar Hall Effect Switches Allegro

Other Datasheets by Allegro MicroSystems

Part Number Description
A1140 Sensitive Two-Wire Chopper-Stabilized Unipolar Hall-Effect Switches
A1145 Ultrasensitive Two-Wire Chopper-Stabilized Unipolar Hall Effect Switches
A1147 (A1147 / A1148) Low Current Ultrasensitive Two-Wire Chopper-Stabilized Unipolar Hall Effect Switches
A1148 (A1147 / A1148) Low Current Ultrasensitive Two-Wire Chopper-Stabilized Unipolar Hall Effect Switches
A1101 Continuous-Time Switch

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
A1145 and A1146 Ultrasensitive Two-Wire Chopper-Stabilized Unipolar Hall Effect Switches Features and Benefits ▪ Chopper stabilization ▫ Low switchpoint drift over operating temperature range ▫ Low sensitivity to stress ▪ Factory programmed at end-of-line for optimized switchpoints ▪ On-chip protection ▫ Supply transient protection ▫ Reverse-battery protection ▫ On-board voltage regulator ▫ 3.5 to 24 V operation Packages: 3 pin SOT23W (suffix LH), and 3 pin SIP (suffix UA) Description The A1145 and A1146 devices are two-wire, unipolar, Hall effect switches that are factory-programmed at end-of-line to optimize ultrasensitive magnetic switchpoint accuracy.