SFH6756T

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Optoisolators are electronic input/output devices that isolate two circuits. They are typically used for communication, such as to allow a microcontroller or field I/O device to communicate with other devices through a serial or parallel port. SFH6756T is one of such optoisolators and it belongs to the Logic Output category.

The main features of SFH6756T includes a high speed optoisolator with inverse output (open drain) and an adjustable LED current sinking capability that can be used with different LED driving circuitry to improve system performance. This device also has a high EMI immunity, and is suitable for medium and high speed logic interface electronic devices.

Application Field

SFH6756T can be applied as original equipment manufacturer (OEM) replacement for general purpose optoisolator applications that require a high speed device. It is suitable for application in the field of consumer and professional electronics such as universal serial bus (USB) and FireWire interfaces.

It can be used in applications where a device with very low input current is desired. It can also be used in applications where speed would be an important factor, such as in mouse, gaming consoles and printers.

Working Principle

The SFH6756T optoisolator works by containing a gallium arsenide infrared (IR) emitter on one side of the package and a high speed photodetector on the other. When a logic signal is applied to the emitter side, it radiates IR light that is detected by the photodetector. The detector then produces the same logic signal on the other side of the device.

SFH6756T has a built-in LED driver circuit which provides an adjustable LED current to the emitter side, thus improving the device’s output. This adjustable LED current also allows the user to tune the device for optimized performance. The device is designed to operate in a wide temperature range and is RoHS compliant.

The optoisolator works by isolating the input and output side of the device. This makes it ideal for communication between two devices that do not share a common ground, thus providing protection from noise or spikes in either circuit. The device is especially suitable for applications which require very high speed transmission.

SFH6756T optoisolator is a general purpose device that can be used in a wide range of applications. It has a high speed and low input current, and it is suitable for use in consumer and professional electronics. It is also designed to operate in a wide temperature range and is RoHS compliant.

This device allows for communication between two circuits with different ground potentials while providing protection from noise and spikes. The adjustable LED current allows for improved performance and faster transmission, making it suitable for applications such as USB and FireWire interfaces, mice, gaming consoles and printers.

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