HCPL-817-W0AE

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Optoisolators are components that provide electrical isolation between the input and output circuits. This enables the user to electrically isolate parts of a circuit from one another. The HCPL-817-W0AE is one such component that is from the family of optoisolators. This device utilizes a transistor photovoltaic output and comes with an isolation voltage of 5000 Vrms. It is suitable for use in many applications due to its high performance and flexibility. This article will discuss the application field, operating principle, and features of the HCPL-817-W0AE.

Application Field

The HCPL-817-W0AE is typically used as a level shifter, voltage amp, and voltage follower in various microprocessor or logic systems. Its wide input voltage range and high noise immunity make it well-suited for these applications. Additionally, it can be used in LED display driver circuits, since it offers very low saturation voltage. It is also suitable for use in isolation-type DC/DC converters and power products, due to its high isolation voltage.

Working Principle

The HCPL-817-W0AE utilizes a transistor photovoltaic output. It consists of a light-emitting diode (LED) mounted in an optically isolated silicon phototransistor. The phototransistor is activated when the LED emits light and is turned off when it does not. The LED light is used to activate the phototransistor which is then used to amplify the signal. This allows the HCPL-817-W0AE to provide a very high isolation voltage of 5000 Vrms. Additionally, this device has an open-collector output, meaning that the collector of the output transistor is not connected internally.

Features

The HCPL-817-W0AE has several features that make it a suitable component for various applications. It has an isolation voltage of 5000 Vrms and a wide input voltage range of 2.7 to 26V. It also offers a low saturation voltage of 0.9V, which makes it suitable for LED display applications. Additionally, the HCPL-817-W0AE has high noise immunity - it can operate without interruption even when exposed to environmental electrical noise.

The HCPL-817-W0AE is a very useful component for isolating circuits and providing a large range of input and output voltages. Its high isolation voltage, wide input voltage range, and low saturation voltage make it suitable for a variety of applications. Furthermore, its high noise immunity ensures that the signal will not be disrupted by environmental noise. The HCPL-817-W0AE is a reliable and highly efficient component, making it ideal for many isolation-based applications.

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