EL0601(TA)

Optoisolators - Logic Output

Optoisolators are devices that use a light-emitting diode (LED) to electrically isolate two circuits while allowing them to communicate. The EL0601 is an optoisolator logic output device specifically designed for low-voltage, low-current applications. In this article, we will discuss the application field and working principle of the EL0601.

Application Field

The EL0601 can be used in a wide range of applications, including automotive, industrial automation, consumer applications, and communications. The device is designed to provide voltage isolation between two different circuits while allowing them to communicate. It can also be used to isolate power supplies from other signals, such as relays or sensors. Additionally, the device can be used to control actuators by providing a logic output signal.

Working Principle

The EL0601 is composed of an LED optically isolated from a phototransistor. The LED is connected to a logic-level input while the output is driven by the phototransistor. When the logic-level input is activated by a voltage potential, the LED is turned on, which in turn triggers the phototransistor. This causes the output to switch on, providing a logic output signal.

The EL0601 can be powered by a wide range of input voltages from 3.3V to 18V. It is important to note that the voltage supply to the LED should not exceed the maximum specified rating (4.4V), as this could cause damage to the device. The input resistance of the device is typically in the range of 1-3kΩ. The output transistor is rated at 80mA/40V. The device has a typical common-mode transient immunity of 40V/μs and a typical common-mode rejection ration of 55dB.

Conclusion

The EL0601 optoisolator is an ideal solution for low-voltage, low-current applications that require electrical isolation while still allowing for communication. It can be used in a wide range of applications, from automotive to industrial automation. The device is composed of an LED optically isolated from a phototransistor, and is powered by a wide range of input voltages from 3.3V to 18V. Additionally, the output transistor is rated at 80mA/40V, and has a typical common-mode transient immunity of 40V/μs and a typical common-mode rejection ration of 55dB.