QT4502

Optoisolators, also called optical isolators, are electrical components designed to create an isolating barrier between two connected circuits. This is done by transmitting the signal from one circuit to the other in an optical form, meaning that any interference in the transmitted signal between the two circuits will be blocked. The QT4502 is a popular optoisolator that utilizes a transistor-photovoltaic output for this purpose. In this article, we will discuss the application field and working principle of the QT4502.

The QT4502 can be used in a wide variety of applications, including motor control systems, telecommunications, controllers, instrumentation, and industrial process control. The optoisolator can also be used to link signals between two separate and isolated networks, as it has an isolation rating of 4,500Vrms for 1 minute. This means that the two connected circuits are fully isolated and no interference is allowed to pass between them.

The QT4502 is a transistor-photovoltaic output optoisolator, meaning that it utilizes a transistor with a photovoltaic cell as its output. This type of optoisolator is designed to provide a reliable, high-fidelity signal transmission between two isolated circuits. The way it works is that the photovoltaic cell in the optoisolator detects the incoming signal, converting it into electrical current. This current is then fed to the transistor, which amplifies it and then sends it to the second, isolated circuit. This ensures a reliable, interference-free signal connection between the two circuits.

The optoisolator also has low off-state leakage current, which helps reduce the power consumption of the system. Furthermore, the optoisolator can handle a wide range of input voltage, from 4.5V to 32V. This ensures a reliable and robust connection between the two circuits, as the optoisolator is not affected by changes in the input voltage. Additionally, the optoisolator has a low propagation delay time, meaning that signals sent through it will be transmitted with minimal delay. This makes the optoisolator an ideal choice for applications where high speed and response time are important.

To sum it up, the QT4502 is a popular optoisolator that utilizes a transistor-photovoltaic output to provide a reliable noise-free connection between two isolated or different electric circuits. Its low off-state leakage current, wide range of input voltage, and low propagation delay time make it a great choice for applications where high-speed transmission and response time are important. The optoisolator also has a high isolation rating of 4,500Vrms for 1 minute, ensuring that the two connected circuits remain isolated and no interference is allowed to pass between them.

QT4502	QT Brightek ...	1.94 $	1000	8 PIN 1 MBITS HIGH SPEED ...
QT4504	QT Brightek ...	2.08 $	1000	8 PIN 1 MBITS HIGH SPEED ...
QT4503	QT Brightek ...	1.94 $	1000	8 PIN 1 MBITS HIGH SPEED ...