SS445P

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Magnetic sensors are electronic components used to detect magnetic fields. They detect magnetic flux, flux density, and field strength. Magnetic sensors are used in a wide variety of applications, from medical equipment to electronic door locks. The SS445P is a magnetic sensor switch which is built for applications such as motor detection and positioning, motion control, and other industrial equipment. This article will discuss the SS445P’s application fields and working principle.

Application field

The SS445P is a unipolar Hall Effect switch. It is specifically designed for use in the medical, automotive, industrial and consumer electronics markets. Its main application is motor position detection and motion control.

The SS445P is a miniaturized and low-cost Hall Effect device. It is well suited for applications where size, cost and power considerations are critical. It also has a low quiescent current, and can operate from a 1.8V to 5.5V voltage supply.

The SS445P has built-in ESD protection and is available in an SOIC-8 package. It is resistant to magnetic fields up to 12 GAUSS and has a reliable switching action, which is consistent over a wide temperature range.

The SS445P is designed to be used in applications such as: robotic components, automotive door locks, medical equipment, tachometers, position sensing, motion control, and much more.

Working Principle

The operation of the SS445P is based on the Hall Effect. The Hall Effect is a physical phenomenon in which a voltage is created when a magnetic field is applied perpendicular to a current carrying conductor. The SS445P uses this magnetic field to switch an output.

The SS445P contains an integrated Hall element which is sensitive to the magnetic field. The output of the Hall element is directed to an on-board comparator. The comparator outputs a logic state (HIGH or LOW) depending on the polarity and magnitude of the magnetic field.

When the magnetic field is greater than a certain threshold (about 5-7 gauss), the internal comparator of the SS445P is activated and the output is the inverse of the input. If the magnetic field is weaker than the threshold, the output is the same as the input.

The SS445P is equipped with temperature compensation which helps to reduce the sensitivity variation caused by temperature change. Additionally, the SS445P has a built-in hysteresis, which eliminates “bounce” when switching from one state to another.

The SS445P is a convenient and reliable solution for motor position sensing and motion control. It is a small and cost-effective solution that can operate over a wide temperature range. The SS445P is a great choice for any project that needs magnetic field sensing or motor position detection.

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