VOM617A-7T Isolators

Optoisolators - Transistor, Photovoltaic Output

The VOM617A-7T is an optoisolator that provides a non-contact transfer of digital signals. An optoisolator is an electronic component that keeps two circuits isolated while allowing them to communicate with each other. It works by using a semiconductor light source such as an infrared light-emitting diode (LED) to transfer a signal from one system to the other without allowing it to cross the barrier between them. This device is ideal for applications where high-speed signal transfers or where the two circuits may have different electrical potentials.

Application Field of VOM617A-7T

The VOM617A-7T optoisolator can be used in industrial, military, automotive, and consumer and commercial applications where high-precision signal transfers are needed. It is designed for use as a digital isolator in digital control systems, motor control systems, electrical and hybrid-electric vehicle controllers, aircraft systems, and communication and modem devices. It is also useful for medical equipment, such as infusion pumps and other devices that need reliable, safe, and high-speed signal transfer.

Working Principle of VOM617A-7T

The VOM617A-7T optoisolator is designed with an LED on the source side which receives electrical signals from the input. The LED emits light which is then detected by a photodiode or phototransistor on the output side that can be selectively switched via a transistor or multiplexer for higher speed applications. This photovoltaic signal conversion process allows for isolation of the two circuits while still providing a way for them to communicate. Since the signals are converted from electrical to light, it is not possible for potentials to pass from the input to the output side. The optical isolation also helps reduce noise and cross-talk from external sources.

Other Properties of VOM617A-7T

In addition to its reliable isolation of input and output circuits, the VOM617A-7T optoisolator has a wide operating temperature range from -55 to 125 degrees Celsius. It also has an isolation voltage rating of 3000Vrms, which makes it suitable for use in high voltage applications. The device\'s response time is fast, with a maximum response time of 10 microseconds, allowing it to be used for high speed signal transfers. The fall time is typically less than 5 microseconds. The working power supply for the device is 5V, and it is available in a small, 5 mm square optocoupler package.

Conclusion

The VOM617A-7T optoisolator offers fast, reliable, and isolated signal transfers that can be applied in a wide range of industries and applications. Its wide operating temperature range, high isolation voltage rating, and fast response times make it ideal for applications where fast and safe signal transfers are needed. With its small package size, the device is perfect for space-constrained applications, such as medical equipment and automotive electronics.