6N137SDV

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Optoisolators are important components in electronic designs, providing a degree of electrical isolation between the transmitter and receiver in communication links. In the category of Optoisolators - Logic Output, 6N137SDV is a commonly-used device for applications requiring a logic-level output amplified to a higher voltage. It provides a method of signal transmission without which certain systems may be difficult or impossible to construct. This article will explore the application field and working principle of 6N137SDV.

Application Field

The 6N137SDV logic isolator is used in a variety of communication devices and systems. In terms of the logic output, it is typically used in systems using low-voltage logic signals, such as PM5158D PLCs, CNC and PID controllers, and motor controllers. When there is a need for signal transmission at a relatively large voltage or current, 6N137SDV is an ideal choice; by controlling the LED with a low-voltage input and then feeding the amplified outputs back to the device, it allows for a safe, reliable signal transfer. In addition, 6N137SDV can be used to isolate vulnerable systems from their environment, such as between a high-voltage power supply and an electronic control system.

Working Principle

The 6N137SDV features an optoisolator module that consists of an LED receiver coupled to a photosensitive output transistor. When an appropriate voltage is applied to the LED, it emits light, which is then received by the photosensitive transistor. This triggers a voltage transition across the transistor, effectively amplifying the input signal to a higher voltage. The 6N137SDV is designed to operate from a single 5V supply, offering an output signal voltage of up to 25V. This, in conjunction to its fast switching time, makes it suitable for logic output applications.

In terms of the package style, 6N137SDV usually comes in the form of a small package. This is necessary in order to prevent electrical interference between the LED and photosensitive transistor. In addition, it also helps reduce the power consumption of the isolator, making it ideal for low-power applications.

The 6N137SDV logic isolator is a great choice for applications requiring a high-voltage output; its small form factor, low power consumption, and fast switching time make it an excellent choice for many systems. Its wide range of uses makes it a valuable component for any designer, ensuring that it will continue to be a popular choice for many years to come.

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