EL3081S(TA)

Optoisolators - Triac, SCR Output

EL3081S(TA) are optoisolators used in applications to electrically isolate two circuits. It is specifically designed to trigger TRIACs or SCRs in high power mains circuits. The safety reasons to use these optoisolators, such as EL3081S(TA), in particular is to reduce any risk of fault and potentially hazardous currents flowing through the connected devices.

Application Field

These TRIAC/SCR output optoisolators can be used in a variety of applications. Commonly, these are used for phase control of an AC/DC power supply. This can include applications across a wide range of power, such as dimmers for low voltage applications, motor speed controls, heater, LED drivers, neon displays, and many lighting lamps. EL3081S(TA) optoisolators can also be used across motor starters for high voltage/low current general-purpose relay units, and in the control of various other small electronic circuits.

Working Principle

The EL3081S(TA) works by using a light source to transfer digital signals from one circuit to another. The optoisolator contains two parts, the transmitter and the receiver. The digital signal is received at the input of the transmitter and it is then electrically and optically isolated by the isolator. The signal is then sent from the isolator, through an LED at the output of the transmitter, and into a light detection component in the receiver. The light detected by this module is then converted into an electrical signal which is sent to the load.

The working principle of the EL3081S(TA) optoisolator is not affected by the operating temperature and it is designed to have a high immunity from ESD and other transients. Its design furthermore provides an high level of safety for any application that requires an electrical isolation between the two circuits. It also has a low power consumption which allows for longer battery life in any devices that use the EL3081S(TA) optoisolator.

Conclusion

In conclusion, the EL3081S(TA) optoisolator is a TRIAC/SCR output optoisolator that provides electrical isolation between two circuits. It can be used in power control of AC/DC power supplies and is ideal for low voltage applications, motor speed controls, LED drivers, neon displays, and many lighting lamps. It works by transferring digital signals using a light source and provides a high level of safety due to its design capability. Due to its low power consumption, the EL3081S(TA) optoisolator can also be used in applications that rely on battery power.