6N138S(TA)-V

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Optoisolators are a type of interface that provide electrical isolation between high and low voltage configurations. The 6N138S(TA)-V is a particular optoisolator transceiver that uses a photovoltaic output to enable isolated signal transfer between two sections of a circuit or to isolate a voltage source. This component is designed with a number of advantages in order to offer an improved level of performance and dependability. Here, we will discuss the various application fields and working principle involved with the 6N138S(TA)-V.

Application fields

• Isolating logic signals between high voltage/power and low voltage/signal circuits.
• Optical isolation of control signals in telemetry systems.
• Optical isolation of digital data lines.
• Noise reduction in RS-232/RS-422 systems.
• Isolating circuitry on the same printed circuit board.
• Input protection from high voltage spikes.
• Isolation of tachometer signals.

Given its design, the 6N138S(TA)-V is able to offer significantly greater electrical isolation between low and high voltage portions of a circuit. This ensures that data signals are not contaminated or compromised due to voltage differences. In turn, it reduces the potential for equipment failure and spurious signals.

Working principle

The 6N138S(TA)-V contains a 6N138 optocoupler and contains an LED in the side-emitting infrared diode optical package. This device requires an external surface mount transistor, without which the circuit would not be functional.

When the LED is powered with a DC voltage from 4.5 to 10 volts, it emits infrared (IR) radiation, which is then converted into a rectified output current via the photovoltaic output device. This current is then amplified using the transistor, which is connected to the optocoupler’s output terminal. Finally, a current is provided that has been isolated from the input signal.

When the 6N138S(TA)-V is connected correctly, it is capable of providing an excellent level of isolation between the two sections of the circuitry, ensuring that even fast-switching signals are optically isolated. This provides a high degree of safety during the operation of the equipment using it.

In addition to its isolation capabilities, the 6N138S(TA)-V also offers superior signal integrity and data signal-dependent switching time due to its wide dynamic range and fast response. This makes it an ideal choice for applications where data integrity is of paramount importance.

Conclusion

In summary, the 6N138S(TA)-V is a valuable tool for providing electrical isolation between low and high voltage configurations, ensuring that data signals are not corrupted due to voltage differences. Thanks to its design, it is capable of providing an excellent level of isolation while also offering superior signal integrity and data signal-dependent switching time due to its wide dynamic range and fast response. This makes the 6N138S(TA)-V an ideal choice for applications where data integrity is essential.

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