HAL556UA-K

Series:	HAL®
Packaging:	Tape & Box (TB)
Part Status:	Last Time Buy
Function:	Unipolar Switch
Technology:	Hall Effect
Polarization:	South Pole
Sensing Range:	7.4mT Trip, 2mT Release
Test Condition:	25°C
Voltage - Supply:	4 V ~ 24 V
Current - Supply (Max):	17mA
Current - Output (Max):	--
Output Type:	Open Drain
Features:	Temperature Compensated
Operating Temperature:	-40°C ~ 140°C (TA)
Package / Case:	TO-226-3, TO-92-3 (TO-226AA) (Formed Leads)
Supplier Device Package:	TO-92UA-1

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Introduction

HAL556UA-K is a Magnetic Switches (Solid State) that is used in a variety of applications. It has a wide range of uses, from automotive and industrial applications to medical devices and home appliances. The HAL556UA-K is a low cost, high performance solution for sensing magnetic fields. The device features an integrated Hall-Effect Sensor and a high accuracy, low power, low voltage amplifier. The device has a self-calibrating mode and is also capable of self-diagnosing.

Working Principle

The HAL556UA-K works by using the Hall Effect. When a magnetic field is applied to the device, it responds by producing a voltage that is proportional to the strength of the magnetic field. This voltage is then amplified and detected by the amplifier. The Hall Voltage is proportional to the strength of the magnetic field. A higher magnetic strength produces a higher output voltage, making it possible to detect minute changes in the strength of the magnetic field.When no magnetic field is present, the Hall Voltage is zero. This can be used as a reference point for detecting changes in the magnetic field.The device can also be configured to operate in either an open or closed loop mode. Working in an open loop mode, the device amplifies the voltage generated by the Hall Effect, then detects and amplifies any input signals. Working in a closed loop mode, the device simply amplifies the Hall Voltage, then feeds it directly to the output.

Application Field

The HAL556UA-K is used in many different applications. It is a highly versatile device that can be used in a wide range of applications such as:

• Automotive Applications. The HAL556UA-K can be used for wheel speed sensing, ABS systems, tachometer systems, and traction control systems.
• Industrial Applications. The device can be used in industrial applications such as automation, robotic systems, and motion control systems.
• Medical Applications. The device can be used in medical applications such as cardiac monitoring, pulse oximetry, and patient monitoring systems.
• Home Appliances. The device can be used in home appliances such as refrigerators, freezers, and washing machines.

Conclusion

The HAL556UA-K is a highly versatile Magnetic Switches (Solid State) that can be used in a wide variety of applications. It is a low cost, high performance solution for sensing magnetic fields. The device has a self-calibrating mode and is also capable of self-diagnosing. The device has a wide range of uses, from automotive and industrial applications to medical devices and home appliances.

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