Optoisolators - Transistor, Photovoltaic Output

The 5962-8981001PA is an optoisolator that is tailored for series-terminal isolated signal transmission. It features a transistor output on the isolated side that is driven by a photovoltaic current from the non-isolated side. This optoisolator is designed to protect a wide range of both high power and low power applications from electrical interference caused by high frequency voltage transients.

The device is powered by an external DC voltage source supplied to the non-isolated side. This voltage source turns on the gallium arsenide infrared LED in the optoisolator, which drives the secondary optical transistor output on the isolated side. This optoisolator is also equipped with a short-circuit current limiting resistor between the LED and transistor sides of the optoisolator, providing an extra level of protection for sensitive circuits.

The optoisolator outputs a transistor that is used to control the downstream isolated components. This transistor is driven by the current generated from the LED\'s light output. The optoisolator circuit also offers a unique feature wherein an external voltage source can be added to provide additional drive current for the transistor on the isolated side.

The optoisolator provides a reliable way to isolate and switch high-power circuits from noisy or high-voltage environments. It also protects low-power circuits from overloading, short circuits, and high-frequency noise. The device is useful for many types of applications, including medical, automotive, and industrial.

Overall, the 5962-8981001PA application field and working principle highlights the versatility of optoisolators. The optoisolator in this device combines a transistor output on the isolated side with a photovoltaic current from the non-isolated side to provide an effective form of signal transmission while protecting the circuit from electrical interference. This device provides a reliable form of isolation for both high-power and low-power circuits, making it an invaluable tool for a wide range of applications.