CNY17-2S-TA

Optoisolators - Transistor, Photovoltaic Output is a type of devices that are designed to minimize interference in communication systems. Offering the capability to supply optimized isolation, this technology helps to reduce noise and avoid the transmission of erroneous signals. This article will explain the CNY17-2S-TA application field and working principle.

The CNY17-2S-TA is a digital optoisolator product developed by OptoTech’s CNY17-2S series. This is a type of transistor output optoisolator which is designed for applications such as noise-free digital signal transmission between various electrical components. It has a dual detector-transistor output configuration and a transparent structure with standard SOP and SMT packages.

The main application field of the CNY17-2S-TA is the protection of sensitive devices from high voltage transients. It can protect MCUs and other logic or switching circuit components from high current ESD, transients, and electrical noise. The output of the optoisolator is sensitive enough to detect very small voltage changes and it is also highly reliable with low power consumption.

The typical working principle of optoisolator includes a LED, photo-transistor, and a couple of resistors which work together to form an optocoupler. An optoisolator works by allowing the current to flow from the LED to the photo-transistor when the input voltage is applied across the circuit. The current flowing from the LED to the phototransistor will activate the relay, allowing the current to flow which will then power the output side of the circuit.

The CNY17-2S-TA is designed to provide a reliable and high speed isolation. It has a breakdown voltage of about 4000V that can protect the device from high voltage transients. The optoisolator consists of an LED emitting a light signal that triggers the phototransistor, resulting in a switched output after the light is received. Additionally, this optoisolator also provides a low off-state current leakage of 1.2mA and a low propagation delay of 8us.

In conclusion, the CNY17-2S-TA application field and working principle has been discussed. It provides reliable and high speed isolation with extremely low power consumption. It is designed for applications such as noise-free digital signal transmission between various electrical components, along with protection from high voltage transients. This optoisolator consists of an LED, a photo-transistor, and a couple of resistors, allowing current to flow and activate the relay for the output side of the circuit.