ILQ621GB-X001

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 - Transistor, Photovoltaic Output

ILQ621GB-X001 is an optoisolator, a type of component that combines an optically isolated input and output stage together in a single package. This particular model is an example of a transistor photovoltaic output optoisolator, which is widely used for converting analog inputs into digital logic signals. In this article, we will look into the application field and working principle of ILQ621GB-X001.

Application Field of ILQ621GB-X001

Transistor photovoltaic output optoisolators like ILQ621GB-X001 are most commonly used in applications that require electrical isolation between input and output signals. Examples include signal conditioning and amplification in medical, industrial, and automotive electronics, as well as analog-to-digital and digital-to-analog conversion. Other applications include motor control, EMI noise suppression, over-voltage and over-current protection, and fast switching.

Working Principle of ILQ621GB-X001

The ILQ621GB-X001 optoisolator is a combination of a light-emitting diode (LED) and a phototransistor. The LED side takes an input electrical signal from a circuit and converts it into light. This light is then detected by the phototransistor, which conducts a current in response to the detected light. This current is then fed back to the circuit, where it is used to drive an output signal.

The LED is typically driven by a voltage between 0.6V and 15V, while the phototransistor is usually designed with a large collector-to-emitter breakdown voltage between 15V and 25V. This allows for an effective electrical isolation of up to 25V between the input and output of the ILQ621GB-X001 optoisolator.

The optoisolator also includes a resistor in the LED circuit, which limits the current supplied to the LED in order to control its intensity and regulate its function. This resistor can vary in value from 10K ohms to 2M ohms depending on the application, and it is usually chosen based on the input voltage and the desired output speed.

Conclusion

ILQ621GB-X001 is a transistor photovoltaic output optoisolator, commonly used in a variety of applications for converting analog inputs into digital logic signals. Optoisolators like this one provide electrical isolation up to 25V between input and output signals, making them suitable for applications such as motor control, signal conditioning, and EMI noise suppression. The resistor incorporated in its circuit allows the user to control the LED intensity and output speed.

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