TLP387(D4-TPR,E

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Optoisolators are components that isolate circuits, both electrically and optically. They allow for signals to be transferred without any interference, and they provide a secure connection between the two parts of any system. The TLP387(D4-TPR,E) is an optoisolator that provides the maximum possible insulation and works on the principle of photoconductivity in a photo-triac.

The TLP387(D4-TPR,E) consists of two parts; a stationary transistor-photovoltaic (TPV) output and a non-stationary photo-triac output that act together to form an isolator. The TPV output is a transistor with a built in photocell that produces a light source. This light source interacts with other semiconductor components in the photo-triac output circuit to create a secure connection. The device is non-blocking, meaning that when the light source is off, the output signal proportionally decreases.

The main application fields for the TLP387(D4-TPR,E) are motor drive systems, automated control systems, and machinery. This type of optoisolator is widely used in industrial automation applications, including industrial controllers, PLCs, and AC and DC drives. It also has uses in medical and automotive applications, providing a robust interface between two different circuits.

The working principle of the TLP387(D4-TPR,E) is based on photoconductivity in the photo-triac output. A direct current passes through the photo-triac, which is formed by a photoconductive layer typically made from silicon nitride or titanium nitride. When the TPV output generates a light source, the photoconductive layer is held in the on-state, allowing for current to flow. Once the input signal is removed, the light source is turned off and the photoconductive layer goes back into the off-state, blocking the current from continuing to flow.

The TLP387(D4-TPR,E) is a high-performance optoisolator with excellent insulation characteristics. It has a wide operating temperature range and can handle up to 25A of current, making it suitable for a variety of applications. It also provides a robust solution for applications requiring secure isolation between two different circuits, making it a popular choice in many industrial applications.

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