HAL1563SU-A

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Function:	Unipolar Switch
Technology:	Hall Effect
Polarization:	South Pole
Sensing Range:	7.6mT Trip, 9.4mT Release
Test Condition:	--
Voltage - Supply:	2.7 V ~ 24 V
Current - Supply (Max):	--
Current - Output (Max):	--
Output Type:	Open Drain
Features:	--
Operating Temperature:	-40°C ~ 70°C (TJ)
Package / Case:	TO-236-3, SC-59, SOT-23-3
Supplier Device Package:	SOT-23-3

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Introduction

The HAL1563SU-A is a Magnetic Sensor - Switch (Solid State) manufactured by Honeywell, a global leader in sensing and control technology. The HAL1563SU-A, a single-pole, single-throw, normally open switch, is designed to detect the presence or absence of magnetic fields. The switch is designed to detect any magnetic field as small as 0.095mT (1.2 gauss)—even in high noise environments. The switch has a wide voltage input range from 3.5V to 20V, a high current rating of 0.5A, and is equipped with short-circuit protection.

Application Field

The HAL1563SU-A is suitable for a wide range of applications. It is popular in the automotive industry as it is able to detect the presence of a magnetic field in difficult operating environments such as those with high temperature and humidity, high vibration, and high electromagnetic interference. Additionally, the switch can be used for security and safety applications such as sensing door locking systems, for proximity sensing and detection, and for industrial automations. The HAL1563SU-A can also be used in consumer and home products such as contactless switches, motion sensors, and anti-theft systems.

Working Principle

The HAL1563SU-A is a solid state switch which means it has no moving parts, making it well-suited for automotive and harsh operational conditions. The switch has two main elements—the sensing element, and the magnetic field indicator (MFI) element. The sensing element is an integrated circuit (IC) and the MFI element is a static magnet.The sensing element is sensitive to magnetic fields and when a magnet is placed close enough to the switch, it can detect the field and trigger the switch. The MFI element is the permanent magnet which holds the field and directs it so that it interacts with the sensing element. The two interact to form a bridge structure, and when a sufficient magnetic field strength is detected, the bridge is shorted and the output current is switched on. When the magnet is removed or the field strength falls below the detection threshold, the switch is opened and the output current is switched off.

Conclusion

The HAL1563SU-A Magnetic Sensor - Switch (Solid State) from Honeywell is an exceptionally reliable switch designed for a variety of applications requiring the detect of the presence or absence of magnetic fields. The switch is able to detect field strengths as low as 0.095mT and is suitable for the automotive and consumer markets. The switch is designed to require two elements—a sensing element and a static magnet—to interact with each other so that when a predetermined field strength is detected, the switch is triggered on or off.

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