6N138S(TA)

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The 6N138S (TA) is an optoisolator that combines the principles of photovoltaic and transistor output to provide a device with very stable performance over the full operating temperature range. The optoisolator can control energy flow between two isolated electrical circuits. It is a form of electrical isolation which allows the operation of two circuits without interference from each other. This is especially useful when operating with potential energy sources that might create an electrical hazard for the user.

The 6N138S (TA) optoisolator is designed around a transmissive optocoupler device. This device consists of a light-emitting diode (LED) and a phototransistor, which are electrically isolated from one another. The LED emits a beam of light when the input signal is received, which will cause the phototransistor to become active if a light is present. This switch-like behavior allows for the transfer of signals from the isolated source to the electrically-isolated output circuit.

The photovoltaic output section of the optoisolator is what allows the device to operate independently of current flow and voltage. It also provides current regulation, as the phototransistor will automatically turn off when the LED current is reduced to a certain level. This minimizes the amount of energy that is wasted when the device is in use.

The working principle of the 6N138S (TA) optoisolator is that an incoming signal will activate the LED, which in turn activates the phototransistor, providing an output signal which can be used in any subsequent circuitry. This makes the device suitable for a wide range of applications, including industrial, automotive, and consumer electronics.

One of the main applications for these optoisolators is motor control. When used for motor control, the optoisolator acts as an interface between an analog or digital control system and the motor. It provides isolation from the motor’s high-voltage, high-current environment, preventing any risk of electrocution or damage to the motor itself. Additionally, the device can also be used to regulate the current in the motor, which helps maximize the efficiency of the system.

The 6N138S (TA) optoisolator is also used in communication systems, such as those used in modems and Wi-Fi devices. The device is used to allow the modems and Wi-Fi devices to communicate at different frequencies, while still providing the necessary isolation from the circuit that is transmitting the signal. This is important for ensuring that the noise from the circuit does not interfere with the signal that is being sent.

The 6N138S (TA) optoisolator is also used in data acquisition systems. This device allows the data to be taken from an input source and converted into an output signal, which can then be used for further processing or analysis. This is especially useful for process automation, where accurate and reliable data input is vital.

Overall, the 6N138S (TA) optoisolator is a highly reliable and rugged device that provides excellent performance in a wide range of applications. It combines a transmissive optocoupler with a photovoltaic output section to provide excellent isolation and accurate current regulation for applications such as motor control, communication and data acquisition systems. With its wide range of features, this device is ideal for bringing greater power and precision to any industrial, automotive or consumer electronics application.

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