CNY17G-4

Optoisolators, more commonly known as optocouplers, are electromagnetic components used to separate galvanically two circuits. An electrical feedback is still maintained between the two circuits, but the galvanic isolator ensures that the two circuits remain electrically isolated from one another, protecting from interference and protecting against overloads. The CNY17G-4 optoisolator provides a transistor photovoltaic output.

The CNY17G-4 optoisolator, also known as the CNY17G, is a hybrid optoisolator designed for use in data-communications and low-power control applications where there is an overload risk or mechanical contact problem with the input. The CNY17G-4 optoisolator has an industrial temperature range of -40 to 105 °C and is rated for operation up to 1750 V. It features an insulated 600 V open collector Photovoltaic output, making it suitable for low power circuit protection, low-noise signal transmission, and isolation of data signals.

The CNY17G-4 optoisolator utilizes an LED and photodiode combination device in order to provide isolation between circuits. The input of the optoisolator contains an integrated LED which emits light when a voltage greater than 3.3 V is applied. The photodiode in the output side detects the generated photons from the LED and produces a current proportional to the intensity of the light. This current is then sent to the photovoltaic output transistor which amplifies this current. The optoisolator must be connected to an external power supply to maintain the required voltage level.

The CNY17G-4 optoisolator provides the advantages of low power consumption, low cost, and a wide range of applications. It is well suited to applications such as power line carrier applications, low power control systems, and protection of low voltage electrical equipment. The optoisolator can also be used to provide electrical isolation for data communications between two separate systems, such as serial port connections. Additionally, the CNY17G-4 optoisolator is an ideal solution for outdoor applications or applications which require a high level of protection against moisture, dust, and other environmental contaminants.

In summary, the CNY17G-4 optoisolator is a low-power, cost-effective solution suitable for a wide range of applications. It provides significant electrical isolation between circuits while allowing a feedback connection. The hybrid optoisolator uses an LED-photodiode combination device to detect photons and send an amplified current to the photovoltaic output transistor. The optoisolator is ideal for power line carrier, low power control systems, and electrical isolation of data communications in outdoor or high-protection applications.