Product Overview

AS0A823-H2SB-7H launched by Allegro MicroSystems is a linear Hall sensor based on the Hall effect principle, belonging to the high-precision magnetic field detection sensor series. It realizes linear conversion output of magnetic field strength through integrated advanced signal processing circuits, featuring excellent temperature stability and anti-interference ability. It is widely used in scenarios requiring precise magnetic field measurement, and is a high-performance solution in the magnetic field sensor field.

Key Features

• High-Precision Magnetic Field Detection：With a linear error as low as ±1.5% in the range of -40°C to 150°C, it ensures the accuracy of magnetic field measurement, meeting the needs of precision control.
• Wide Operating Voltage Range：Supports 3.0V to 24V wide voltage input, compatible with various power supply systems such as automotive electronics and industrial equipment, improving application flexibility.
• Ultra-Low Power Consumption Design：Typical quiescent current is only 5mA, which can significantly extend the battery life in battery-powered portable devices.
• Excellent Temperature Stability：Built-in temperature compensation circuit with a temperature coefficient as low as 0.05%/°C, ensuring stable output signals in a wide temperature environment.
• Miniaturized Package：Adopts SOT-23-3L ultra-small package (2.9mm×2.8mm×1.1mm), saving PCB space and suitable for high-density layout.

Technical Specifications

Typical Applications

• Automotive Electronics：In power window motors and steering systems, as a magnetic field detection sensor, it real-time monitors the magnetic field changes of the motor rotor position, realizing precise speed and position control to ensure driving safety.
• Industrial Automation：Used in robotic arm joints and conveyor belt speed detection, it converts linearly output magnetic field signals into displacement or speed data, cooperating with control systems to achieve high-precision motion adjustment.
• Consumer Electronics：In laptop cooling fans and smart door locks, it detects the position of permanent magnets to control device start-stop, and the low-power feature is suitable for battery-powered scenarios.
• Medical Devices：In portable magnetic field therapy instruments, as a core linear sensor, it monitors magnetic field strength to ensure precise control of treatment doses, and temperature stability ensures the reliability of the device in different environments.
• Smart Home：Integrated into curtain motors and smart toilet lids, it senses the operating status of devices through magnetic field changes, realizing automatic start-stop and fault detection, and the small package simplifies internal structure design.

Why Choose AS0A823-H2SB-7H？

• High-Precision Measurement：±1.5% linear error remains stable in a wide temperature range, meeting the strict requirements of precision magnetic field detection scenarios.
• Wide Voltage Adaptability：3.0V-24V operating voltage covers mainstream power supply standards in automotive, industrial and consumer electronics, reducing power adaptation design costs.
• Reliability in Extreme Environments：-40°C to 150°C operating temperature range, suitable for automotive engine compartments and industrial high-temperature environments, ensuring long-term stable operation.
• Low Power Advantage：5mA quiescent current is a typical representative of low-power Hall elements, extending the service life of battery-powered devices.
• Compact Design：SOT-23-3L package is small in size, suitable for high-density PCB layout with limited space, simplifying hardware design processes.

SUNTOP COMPANY INTRODUCTION

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