FOD420TV

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Optoisolators, or optocouplers, are optoelectronic devices used for the isolation between two circuits. One of the most common types of optoisolator is the TRIAC output optoisolator. The FOD420TV is an optocoupler that has this type of output, and it is used in a wide range of applications. This article will discuss the application field and working principle of the FOD420TV.

The FOD420TV is usually used to safely isolate a higher voltage circuit from a lower voltage circuit while still allowing them to interact. It is commonly used in AC power control applications, such as in the automation of residential appliances. The FOD420TV has a dielectric strength of 4,000V and a maximum output current of 150mA, so it can be used to control relatively powerful loads. The FOD420TV optocoupler uses an infrared LED and a PHOTOTRANSISTOR, which are connected via an isolation barrier and react to the triggering of the optocoupler.

The working principle of the FOD420TV is based on the operation of the TRIAC output optoisolator. The TRIAC is an semiconductor switch that can be used to control both the on/off state and the operating current of an AC load. The TRIAC also has a built-in isolated gate driver that allows it to be controlled by an input voltage. The FOD420TV is designed to trigger the TRIAC using a voltage input between 3 and 15V. When the input signal is present, the LED in the optocoupler emits infrared light that is detected by the PHOTOTRANSISTOR, which then triggers the TRIAC to switch on or off. This allows the FOD420TV to be used to control AC loads such as motors, heating elements, and lights.

The FOD420TV can also be used in applications where an input signal of a different range is required. This is done by using a voltage divider or a transistor to reduce the voltage input. It is also possible to use the FOD420TV in DC applications, by integrating a suitable DC-AC converter to provide the required AC input.

The FOD420TV is a relatively low cost, high performance optoisolator that can be used in a variety of applications. It is also easy to integrate into existing circuits, as it does not require a complex signal conditioning circuit. This makes it ideal for applications such as home automation, lighting control, and motor control.

In summary, the FOD420TV is a TRIAC output optoisolator that is used for the isolation between two circuits. It can be used in AC or DC applications and has a dielectric strength of 4,000V and a maximum output current of 150mA. The TRIAC output can be triggered by an input voltage of 3-15V and can be used to control AC loads such as motors, heating elements, and lights. The FOD420TV offers a low cost, easy to use isolation solution for a variety of applications, and is well-suited to home automation, lighting control, and motor control.

The specific data is subject to PDF, and the above content is for reference