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ACPL-5630L-200 Application Field and Working Principle

Optoisolators are designed for the transmission of digital information and the isolation of low-speed signals in applications such as those of industrial electronics, test and measurement equipment, and telecom products. One of these components is the ACPL-5630L-200, a logic output optoisolator that enables the 3.3V or 5V TTL input to be isolated from the output without any wasteful power consumption. With this, the system remains isolated, without the need for external power supply or additional circuitry.

Features

The ACPL-5630L-200 offers several features, including isolation voltage up to 5kV RMS, enablement of higher data transmission speed, LED feedback indication, and a wide operating power supply voltage range. It also offers a switching speed of 45 ns, as well as a low input current of 4mA for illuminating LED. It is also suitable for high density PQFN wafer level packages and it provides higher immunity against electrical fields.

Applications

In industrial electronics, the ACPL-5630L-200 is suitable for applications requiring a control output with fast response time and power isolation. It can be used in professional medical equipment, computer interfaces, communication systems, power supplies, programmable logic controllers, and other processes automation applications. This optoisolator is also used in the automotive process control industry, among other applications.

Working Principle

The ACPL-5630L-200 uses the coupling mechanism of an infrared light emitting diode and a phototransistor to achieve the isolated signal transmission. The infrared LED is triggered by a TTL input logic signal, emitting a light signal that is detected by the phototransistor. The phototransistor then amplifies the signal and passes it on to the output circuitry.

The ACPL-5630L-200 also employs a high frequency rejection filter to reject noise signals above 50 kHz. This helps to reduce interference introduced by high frequency noise, particularly in sensitive applications, and ensure precise timing. In addition, the optoisolator features an internal voltage regulating circuit that limits the LED forward current to a safe value.

Conclusion

The ACPL-5630L-200 is a logic output optoisolator that enables the isolation of low-speed signals, without the need for an external power supply. It is designed for data transmission and can be used in various processes automation applications. The optoisolator features a TTL input logic signal, and its working principle is based on the coupling mechanism of an infrared LED and a phototransistor. It also features a high frequency rejection filter, along with an internal voltage regulation circuit, making it suitable for sensitive applications.

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