VOM618A-2T Isolators

Optoisolators - Transistor, Photovoltaic Output

The VOM618A-2T is a 4 pin optocoupler with an input transistor and a photovoltaic output. It is used to isolate circuits from each other without affecting the electrical signals passing between them. The optocoupler is constructed by combining a light emitting diode (LED) and photo-sensitive semiconductor in the same package. The optocoupler serves as an electrically isolated barrier to prevent high voltage signals from coupling in to the low voltage signals.

When used as an input device, the VOM618A-2T has an LED which is connected to the input power supply. The output stage has a phototransistor. The power flowing through the LED generates a light source which is sensed by the phototransistor and results in an electrical current. The resulting current is used to drive the output stage of the optocoupler.

The VOM618A-2T can also be used as an output device. In this configuration, the input stage is connected to the output of the IC. The power source is provided by an external power supply. As a result, the output of the IC is isolated from the input power source. When the logic level of the output of the IC changes, the light source generated by the LED is modulated to drive the phototransistor output stage on or off. This modulation is then translated into a digital output signal.

From an applications standpoint, the VOM618A-2T optocoupler provides a simple and reliable way to electrically isolate two circuits. This can be used to protect sensitive components by preventing power surges or to ensure that data signals remain error free. It can also be used to transmit signals over long distances with low power consumption and negligible signal loss.

The VOM618A-2T optocoupler is widely used in industrial and embedded applications. It is commonly found in motor control applications, portable electronics, and automation systems. The optocoupler is also used in UPS systems, power management systems, and medical instruments. In addition, it is suitable for use in automotive, telecommunications, aerospace, and military applications.

In summary, the VOM618A-2T optocoupler is a versatile and reliable device that provides electrical isolation between two circuits. Its simple design and low power consumption make it suitable for use in a variety of industrial and embedded applications. With its increased signal integrity and low cost, this optocoupler will continue to be a popular choice in the semiconductor industry.