ISP817CX

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Optoisolators are electronic devices used to connect electrical circuits in a way that eliminates a direct conductive connection. The ISP817CX optoisolator is widely used in many applications, both commercial and industrial. In this article, we will discuss the application field and working principle of the ISP817CX.

The ISP817CX is a dual-output optoisolator used primarily in communications circuits. Its two outputs can be individually set to either pull-up or pull-down states, making it well-suited for communication and data transmission. The ISP817CX is also optimized for applications such as factory automation, motor control, and electronic-instrumentation, as well as for signal isolation and noise limitation.

The ISP817CX is an optoisolator that features a transistor output with photovoltaic output. This optoisolator construction allows for fast signal isolation and a robust operating range. The device has a dedicated LED input, which limits power dissipation within the circuit and reduces the potential for interference from other circuits.

The internal structure of the ISP817CX consists of a phototransistor and a photodiode. The photodiode acts as the input device, and is used to detect the presence of an incoming light signal. As light falls on the photodiode, this light energy is converted into an electric potential which is then used to control the Base and Emitter of the phototransistor. The Collector of the phototransistor is used as the output of the optoisolator, and will output either a "high" or "low" state based on the presence or absence of incoming light.

The ISP817CX is a high-performance optoisolator, combining both fast signal transmission and guaranteed isolation between the input and output circuits. The device features a Vcc range of 4V to 34V and a common-mode voltage range of -7V to 70V. This wide operating voltage allows the optoisolator to be used for a variety of applications.

In addition, the ISP817CX has a maximum propagation delay of 15us, ensuring fast signal transmission with minimal degradation. With its internal over-temperature, short-circuit, and under voltage lockout protection, the ISP817CX is a reliable and robust device that can provide reliable isolation no matter the application.

In summary, the ISP817CX is a dual-output optoisolator that combines fast signal transmission and reliable isolation with a wide operating voltage range and robust protection. It is suitable for many applications such as factory automation, communications, and motor control. Its versatility and reliability make it a popular choice for many engineers and manufacturers.

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