GFR4B08100

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GFR4B08100 is an integrated photocoupler designed for applications requiring high common-mode transient noise immunity, such as signal transmission over long distances or resistant to noise in industrial environments.

The device consists of a Gallium Arsenide (GaAs) infrared LED and a photodetector, both with high blocking voltage, connected in an IC with three of its own functions.

The three functions are 1) a built-in resistor which provides a stable output, 2) a diode bridge to provide a low-impedance output, and 3) a transformer which transforms the high level input signal to the lower level output signal in order to maintain a low power consumption. In addition, a clamping circuit is included to prevent an accumulation of charge, due to the high AC voltage, on the output.

Advantages of GFR4B08100

1. TTL Compatible Outputs: GFR4B08100 has TTL compatible outputs, which guarantees TTL logic compatibility over a wide operating range from -20°C to +85°C.
2. High common-mode transient noise immunity: GFR4B08100 has a peak photocoupler common-mode transient immunity of more than 10 kV/μs, making it superior for signal transmission over long distances and tolerant to noise in industrial environments.
3. Low Crosstalk: GFR4B08100 has exceptionally low crosstalk, making it ideal for differential signal transmission.
4. High Speed: GFR4B08100 has a sensitivity of 10 mA/μs, making it particularly fast at sending signals even over long distances.
5. High Reliability: GFR4B08100 has a MTTF of greater than 500,000 hours, making it reliable for long-term use.

Applications of GFR4B08100

GFR4B08100 can be used in a variety of applications, including:

• Signal transmission over long distances.
• Differential signal transmission in noisy environments.
• High speed communication.
• Sensor-based applications.
• Power supply systems.
• Security systems.
• Automotive applications.

Working Principle of GFR4B08100

The working principle of GFR4B08100 is simple, yet effective. When a voltage is applied to the collector-emitter of the GaAs infrared LED, the LED emits light that is then captured by the photodetector. The photodetector then transforms the light into an electric current. This current is then amplified and applied to the clamping circuit and the diode bridge. The amplified current then passes through the diode bridge, creating a low-impedance output signal for the consumer.

The built-in resistor provides stability to the output voltage, while the transformer maintains a low power consumption. All these components work together to provide efficient and reliable signal transmission.

Conclusion

GFR4B08100 is a reliable and efficient integrated photocoupler for signal transmission, providing high transient noise immunity, low crosstalk, high speed, and high reliability. With its wide temperature range, it is ideal for industrial applications or for use in remote signal transmission. GFR4B08100\'s simple yet effective working principle ensures that it can provide effective and reliable signal transmission in any environment.

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