HCPL-253L#500

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Optoisolators, which are also known as photocouplers, provide electrical isolation between a control circuit and a load circuit. Utilized in a wide range of applications, the HCPL-253L#500 requires a DC current input to its control circuitry, and output activation is determined by a specific voltage on its input terminal. This type of optocoupler is known as a transistor photovoltaic output.

The HCPL-253L#500 has a peak transfer current of 500 microamperes and a minimum output current of 3 milliamperes. It has a typical output saturation voltage of 400mV and a rise/fall time of 100 nanoseconds. The power supply isolation voltage, as measured at a 25°C junction temperature, is rated at 1500 Volts.

This optoisolator is characterized by high reliability, due to its hermetically sealed SC-70-4 surface-mount package. It has an isolation distance of 8.0 mm, and a collector-to-emitter leakage current of 10nA, providing an effective electrical isolation between the control circuit and the load circuit. The device is suitable for operating temperatures ranging from -40° to +125°C.

The working principle of the HCPL-253L#500 optoisolator is based on the use of an infrared LED and a phototransistor as the optically coupled pair. The infrared LED, when operating at the optimum current range, emits an invisible beam of infrared light that is intercepted by the phototransistor. When the LED is activated, the phototransistor is activated and provides an output signal related to the control current.

The HCPL-253L#500 optoisolator has a wide range of applications, including in industrial and consumer electronics, computer and telecommunication equipment, motor control systems, and automated process control. It is suited for isolating a high-voltage load from low-voltage control on many different types of equipment. The device is capable of providing electrical isolation between two circuits to guarantee proper and safe operation. The optoisolator can also be used for signal transfer and interface functions, such as connecting and isolating data lines and signals, and processing signals for further switching and control.

The HCPL-253L#500 optoisolator is very reliable as it is designed for high temperature applications. Its power supply isolation voltage is rated at 1500 Volts, and the collector-to-emitter leakage current of the device is very low, at 10nA. It also exhibits low input current and fast rise/fall time, which make it ideal for modern high-speed digital signals. With its high packaging density and excellent electrical characteristics, the optocoupler can be utilized in a wide array of applications.

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