HCPL0501R2

Optoisolators are electronic devices used to transfer electrical energy or signals from one part of a circuit to another, while providing physical isolation between the two parts. The HCPL-0501R2 optoisolator is an integrated circuit transistor photovoltaic output isolated from the input, suitable for transferring signals both ways between two different circuits.

Application Field

The HCPL-0501R2 is used in many applications where a high degree of isolation is required to protect a sensitive circuit from surges, noise, and other interfering factors originating in external systems. This optoisolator is especially suitable for high-side load switching applications that typically require high output current. It is also well suited for applications requiring high voltage isolation, such as motor control, power supplies, computer control, and measuring instruments.

Working Principle

The HCPL-0501R2 works based on the principle of photocoupling. An input pin drives an infrared-sensitive optical coupling that causes a synchronously driven optical source to output light, which then modulates the current flowing through the output device (an NPN Darlington transistor). The light output is then converted to an output current signal that is modulated in proportion to the input current, providing a switchable output.

Features

The HCPL-0501R2 has some attractive features that make it suitable for various applications. It provides a high degree of isolation (up to 5 kV) between input and output, allowing it to be safely used in range of industrial, commercial, and medical applications. It also has a wide operating temperature range (from -40℃ to +85℃ ) and very fast response time (less than 10μs). Additionally, it consumes very low power (92 mW) and is capable of handling high voltage and current inputs and outputs.

Conclusion

The HCPL-0501R2 optoisolator is a nice solution for applications requiring a high degree of electrical isolation. Its small size, low power consumption, fast response time, and wide operating temperature range make it suitable for many light-connection-driven applications. Its high voltage and current handling capacity, coupled with its high levels of isolation, make it ideal for high-side load switching and other applications requiring applied voltage up to 5 kV.