EL357ND(TA)-G

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Optoisolators are devices used for electrical isolation of the two components in an electronics system; they’re usually used to isolate signals originating from a microprocessor or any other digital source. EL357ND(TA)-G is one such optoisolator, with a transistor, photovoltaic output configuration.

The EL357ND(TA)-G consists of a dielectric isolator (a light-transmissive material) between the light-emitting diode (LED) and the phototransistor in the package. The isolator provides reliable insulation between the two components of up to 4kV. The optoisolator allows the microprocessor to “talk” to the output component without being electrically connected to it. This way, it ensures complete safety from high voltages and completely inhibits amplified voltage differences between the two components.

The LED inside the package is the light source that converts electrical energy, typically from the microprocessor, into light energy. This light energy from the LED is then used to obtain photocurrent from the phototransistor, which in turn feeds the output component. The photocurrent generation from the phototransistor allows more efficient power transfer, since the input current and amplification level can be independently determined for different applications.

The EL357ND(TA)-G is ideal for a variety of applications like industrial data processing, sensing, and control systems. It is especially useful in systems where galvanic isolation between the output and input components is necessary. Since the output is low impedance, the EL357ND(TA)-G eliminates the need for separate electronic power regulators. This optoisolator can also be used to interface high speed logic circuits with different signal conditions.

The EL357ND(TA)-G optoisolator also provides protection for the embedded microprocessor or logic circuits from potential shorts and system overloads. This is because the EL357ND(TA)-G is able to withstand significant operating voltage and current conditions without relaying or otherwise degrading the signal integrity.Since the EL357ND(TA)-G optoisolator has a low power consumption, it is highly efficient and cost effective for low power applications.

In summary, the EL357ND(TA)-G optoisolator is a versatile device that can be used in a wide range of applications. It provides exceptional power transfer efficiency with its low-power LED and phototransistor pair, along with its dielectric insulation, providing reliable galvanic isolation between the input and output components. The device also provides protection for the system components from overloads and shorts, as well as consumes very little power.

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