EL3051S(TA)

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 - Triac, SCR Output are devices that helpsto isolate electrical circuits to prevent the flow of unwanted electric signals from affecting the operation ofan electrical device. The EL3051S(TA) is a dual-channel optoisolator specifically designed for Triac and SCRoutputs. This article attempts to explain the application fields and working principle of the EL3051S(TA).

The EL3051S(TA) is a small, low cost, high isolation, dual-channel optoisolator designed for use in Triac andSCR output applications. The device is a low-power optoisolator with two optically isolated Triac outputs, onefor each channel. It features an integrated LED, photodetector, and Triac output, all in a single package. The EL3051S(TA) is designed to operate with a supplyvoltage of 5V DC to 20V DC and is equipped with overvoltage protection.

The primary applications of the EL3051S(TA) include motor control, HVAC (heating, ventilation, and air conditioning)applications like fan and air movement control, heating control, lightning control, load switching, and relaycontrol. The device also finds use in industrial applications such as AC motor drives and packaging machinesthat require a reliable, isolated interface.

The working principle of the EL3051S(TA) can be divided into two parts: the input and the output. Starting fromthe input section, the Integrated LED receives the incoming electrical signal which in turn energizes the LED.The input signal then passes through to the photodetector, which is an external photodiode circuit thatconverts the light signal to an electrical one. The electrical signal is then directed to the output driver, whichis a Triac output circuit designed to drive a Triac load.

The Triac output circuit consists of a Triac, which acts as a switch and controls the flow of current through theload. Once the signal is activated by the photodetector, the Triac turns on and the current flows through theload. When the input signal is removed, the Triac turns off and the current flow stops.

In addition to AC motor control, the EL3051S(TA) can also be used in HVAC and industrial applications. Forexample, the device can be used to control the speed of a fan motor or the speed of a conveyor belt. Thedevice can also be used as a switch for consumer electronic products such as TVs or air conditioners.

The EL3051S(TA) is designed to handle overvoltage conditions, making it suitable for a variety of applicationswith varying levels of power requirements or environmental conditions. Furthermore, the device has anoperating temperature range of –40°C to +85°C, and requires no external components, making it an idealsolution for cost sensitive applications.

In summary, the EL3051S(TA) is a dual-channel optoisolator specifically designed for Triac and SCR outputapplications. It is capable of operating with a wide range of input voltages and is equipped with overvoltageprotection. The device can be used to control a variety of motors and consumer electronics, as well asindustrial systems and HVAC applications. The device is capable of handling a wide range of environmentalconditions and temperatures, and does not require any external components, making it an ideal solution forcost-sensitive applications.

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