EL3082S1(TB)-V

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EL3082S1(TB)-V is a optoisolator, capable of providing a bidirectional channel of electrical isolation between two circuits. The isolation barrier is created via a physical separation of the two circuits. This device comes with a Triac, SCR Output, making it ideal for applications requiring galvanic isolation and current low AC Switching.

Application Field: The EL3082S1(TB)-V is primarily designed for AC switching applications with limited, but well-defined parameters. These parameters include but not limited to: Triac firing velocity of 25 μs (min) turning off over-voltage voltage of 600V RMS, and an isolation voltage of 5000V RMS. It acts as a switch that can be triggered by the zero crossing of an AC line voltage, hence it is ideal for controlling lighting, induction motors, and any device that has electrical switching requirements that remain within the device’s specifications.

Working Principle: The EL3082S1(TB)-V is operated by a logic-level input signal. This signal is used to trigger the device, allowing the driving current to flow from the positive output to the negative output. This current is proportional to the driving voltage, and the exact level is determined by the device’s design values. When the triggering signal is reversed, the output voltage is pushed out, blocking the driving current and maintaining the electrical isolation between the positive and negative outputs.

The EL3082S1(TB)-V is designed to respond to input signals with a pulse width greater than 25μs, and its output current will reach the device’s rated value in approximately 20 μs. The optocoupler is provided with a built-in shutoff delay of approximately 9 ms, allowing the device to turn off without creating overvoltage transients on the output. This makes it ideal for surge current sensitive applications, such as the control of portable electronic products.

The EL3082S1(TB)-V is equipped with a 6021 zero-crossing detector IC which is used to protect the device from voltage over-shoots. The detector IC strips off these spikes and provides the optocoupler with a clean, low-ripple control signal. This is beneficial for applications requiring a longer term of operation without significant performance degradation.

Conclusion: EL3082S1(TB)-V is an optoisolator, specifically designed for AC switching applications. This device comes with a Triac, SCR output, and provides galvanic isolation and low AC switching current. The device is triggered by a logic-level input signal, and features a built-in shut off delay of 9ms, allowing it to turn off safely, and without creating over-voltage transients on the output. This device is ideal for applications such as controlling lighting, induction motors, and any other device requiring AC switching.

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