HCPL-263L

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Optoisolators are electronic components that use a combination of electrical and optical signals to perform an electrical isolation function and provide an interface between higher or lower voltage systems. These optoisolators are well suited to applications where noise or large common mode voltage must be rejected. The HCPL-263L optoisolator is based on a voltage output LED coupled with a CMOS chip. It offers logic compatible outputs, high collector/emitter voltages (VCEO/VEBO), low input current requirements, and a wide operating temperature range.

Application Field of HCPL-263L

The HCPL-263L optoisolator is designed for low-voltage microprocessor applications. It provides fast, low power logic interface capability for high-voltage supplies up to 36 V, the type of voltage which is commonly found in telephone or automotive applications. The HCPL-263L optoisolator also offers the advantage of being compatible with TTL and CMOS logic families. The optoisolator has an operating temperature range of -40 to +85 °C, making it desirable for use in a wide variety of environments.

HCPL-263L suits a wide range of applications in low-voltage control and applications with electrical isolation and signal and power line interface. It is often used in TTL and CMOS drive circuits, command signals between circuit and computer systems, control of relays and other devices requiring high voltage, isolation of analog signals in process control systems and powering consumer devices such as solenoids and lamps.

Working Principle of HCPL-263L

The HCPL-263L optoisolator consists of an input LED, an integrated circuitry (IC) and a logic output transistor. An input signal is applied to the LED\'s anode terminal and the LED emits light in response to the input signal. This light is then detected by the internal circuitry, which in turn drives the output transistor to its active state. The output transistor then switches on or off depending on the logic state of the input signal.

The HCPL-263L optoisolator also has a collector-emitter voltage rating of 36 V, making it robust and suitable for use in higher voltage applications. The forward current for the LED should be less than its absolute maximum rating. The circuit should be designed in such a way that the current is within the input current specification given in the optoisolator data sheet. The device can then be operated safely without any risk of breakdown or damage.

The optoisolator also has noise immunity characteristics, which means it is able to reject any noise signals or transients present in the system and thus give accurate logic output. It also has short-circuit protection built in, making it even less prone to damage as a result of misconnection.

Conclusion

The HCPL-263L optoisolator is a reliable and robust optoisolator which is well suited for a wide range of applications. It offers fast logic interface capability, low power consumption, wide operating temperature range, short-circuit protection and noise immunity. The device also has a wide range of collector/emitter voltages and can be used with bases from 3V up to 36V. As such, it is a very useful optoisolator for any electronic system.

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