TLP268J(E

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Optoisolators are electronic components that provide electrical isolation between two systems by using an optical signal to transfer analog or digital signals between them. The TLP268J(E is an optoisolator in the Triac, SCR Output family. It consists of an infrared-emitting diode, an integrated phototransistor, and an SCR (silicon controlled rectifier) output, providing isolation of input and output terminals. It is a 6-pin double-in-line package (DIP) optocoupler ideal for use in power control applications.

The TLP268J(E has a maximum input voltage of 10 VDC and a maximum output voltage of 50 VAC RMS and 600 V peak-to-peak. It has a maximum operating frequency of 35 kHz, and an isolation voltage between input and output of 2500 Vrms. It is also rated for a maximum DC current of 250 mA, a maximum AC current of 600 mA, and a maximum non-repetitive surge current of 1 A maximum.

The TLP268J(E has two main application fields. The first is in the field of power control, where it can be used for speed control, phase control, or soft start applications. It is also suitable for switching or driving triacs, relays, and solenoid valves, or as an interface between digital and analog signals in a system. The second application field is in lighting, where it can be used to control the on/off state of AC lamps, LED lighting, and halogen lighting.

The working principles of the TLP268J(E can be best understood by looking at its internal circuitry. It has an infrared-emitting diode (IRED) as an input element, and a phototransistor as an output element. When no voltage is applied to the input pin, no current flows through the IRED and thus no light is emitted. When a voltage is applied to the input pin, current flows and the IRED emits infrared light. This light is detected by the phototransistor, which activates the SCR, and a controlled amount of current is then sent through the output terminals.

The TLP268J(E optoisolator is a powerful and reliable tool that can be used for a variety of power control and lighting applications. Its maximum input voltage, output voltage, operating frequency, isolation voltage, and current ratings make it suitable for a wide range of applications. Its internal circuitry also helps to explain how it works and provides a better understanding of its capabilities.

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