6N137A-X001

Optoisolators - Logic Output

The 6N137A-X001 is an optoisolator for the logic output family of isolators. Developed by Opto 22, this Compakt™ package contains a gallium arsenide infrared emitting diode (IRED) and an NPN silicon phototransistor. This optoisolator is used to couple an output driver to a TTL device and other logic systems, and can also be used to drive LEDs and other light sources. The 6N137A-X001 provides a component-level solution for efficient power management and improved control.

Application Field

Optoisolators are used in a variety of applications that involve separating electrical circuits. The 6N137A-X001 is commonly used in applications where there is an interface between a logic system and an output driver. This isolator is also used to couple different logic families, for example from TTL to RS-485 or for driving an LED array. The 6N137A-X001 can be used in application fields like industrial control, instrumentation, medical, automotive, scientific, or surveillance and security.

Working Principle

The 6N137A-X001 operates on the principle of photo isolation as its name implies. The optoisolator contains an infrared emitting diode (IRED) and an NPN silicon phototransistor. The IRED internally modulates the light intensity in response to the electrical input signal. This modulated light is then detected by the phototransistor, and a voltage proportional to the light intensity is formed across the phototransistor. This voltage is then amplified and is used to gate the output device.

In the 6N137A-X001, the NPN silicon phototransistor is able to control larger output currents. This makes the 6N137A-X001 suitable for applications that require a higher switching current than other optoisolators. The 6N137A-X001 is also designed with a high isolation voltage rating of 5kV, making it suitable for applications that require improved level of protection and noise immunity.

Conclusion

The 6N137A-X001 is an optoisolator for the logic output family of isolators. It is designed with a gallium arsenide infrared emitting diode (IRED) and an NPN silicon phototransistor. The 6N137A-X001 is used to couple an output driver to a TTL device and other logic systems, as well as to drive LEDs and other light sources. It also provides a high isolation voltage rating of 5kV. This makes it suitable for applications that require improved level of protection and noise immunity, such as industrial control, instrumentation, medical, automotive, scientific, or surveillance and security.