EL814S1(A)(TB)

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EL814S1(A)(TB) Optoisolators - Transistor, Photovoltaic Output

The EL814S1(A)(TB) optoisolator is a photovoltaic output optoisolator that is designed for use in a wide range of applications. This optoisolator consists of an LED optically coupled to a photovoltaic detector, and is available in either through-hole or surface mount packages. The EL814S1(A)(TB) offers excellent instantaneous response, which is also fast enough to provide reliable response to transient signals such as those found in communications links.

Application Field

The EL814S1(A)(TB) optoisolator is ideal for applications like fixed gain control servo loops, transistor switching, linear and digital logic interfacing, computer and instrumentation interface isolation, ±15 V to ±30 V logic signaling, PWM output, low-level signal conditioning, motor control, and motion sensing. It is also suitable for use in consumer electronics and industrial power supplies.

Working Principle

The EL814S1(A)(TB) consists of an LED optically coupled to a photovoltaic detector. The LED transmits light to the photovoltaic detector in response to an electrical signal applied to the LED’s terminals. The output of the photovoltaic detector is a current waveform that is proportional to the magnitude of the LED’s illumination and has the same frequency as the electrical signal. The output current is then used to control the desired operation.

The EL814S1(A)(TB) optoisolator features low input capacitance, low voltage drop, fast response, good thermal capture, and high common mode isolation. It also has ESD reliability of up to 4 kV and is protected against transient overvoltage and overcurrent disturbances. The optoisolator also has built-in protection against reverse current flow during power-on. In addition, the EL814S1(A)(TB) is designed to provide good common-mode noise rejection and steady performance over a wide temperature range.

Conclusion

The EL814S1(A)(TB) optoisolator offers excellent performance and flexibility, making it well-suited for a variety of applications. Its features include low input capacitance, low voltage drop, fast response, good common mode isolation, high ESD reliability, and protection against transient overvoltages and overcurrents. It is available in either through-hole or surface mount packages and is compatible with a wide range of signal levels.

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