HCPL-2430-500E Isolators

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Optoisolators - Logic Output consist of an infrared LED optically coupled to a photosensitive device. They are used to electrically isolate logic gates, microprocessors and other output circuits from input circuits.

HCPL-2430-500E is an optoisolator from highly rated optoisolator supplier Avago Technologies. It is part of Avago’s logicoutput optoisolator family with a high common-mode transient immunity of 10 kV/μs.

The device is widely used in communications, medical, consumer and automotive applications, and is popularly used within mobile phones. The device is suitable for use in transmission line, telephone line protection, and isolated logic gates and logic controllers.

HCPL-2430-500E consists of an infrared emitting diode optically coupled to a high speed integrated photo detector. The photo detector is quite sensitive to radiation from the LED, and its output voltage is high with a high level of inherent isolation. It has an open collector normally off output and a low current input, and offers a 500 Mbps data rate beyond 25 Mbps with a continuous OFF response time of 1 ns maximum.

The device’s open collector collector output allows it to be used in AC and DC isolated applications. Additionally, its low power consumption enables the use of multiple devices in battery-powered or solar-powered systems, and also the use of multiple device integration on a single chip.

Working Principle: The HCPL-2430-500E optoisolator provides electrical isolation between two circuits by using a combination of optical and electrical components. The device employs a LED to generate light pulses, and a photosensitive diode to detect those pulses. When the LED is ON, the photosensitive diode converts the light pulse to a small DC current. The DC current is then amplified by the output amplifier.

The HCPL-2430-500E provides a 0.5KV electrical isolation between the output and input of the device. The current on the output amplifier will increase or decrease depending on the input signal. The output amplifier produces a low level of output when the input signal is low (logic 0 state) and a high level of output when the input signal is high (logic 1 state).

The HCPL-2430-500E is a logic output type optoisolator that provides several distinct advantages. It has a high common-mode transient immunity and can be effectively used in noisy logic interface applications. The device has a low-cost surface mount packaging and its low power consumption can easily blend into many battery-powered applications and systems. The device can also be used to provide electrical isolation between two logic circuits of different logic families. It has a high data rate of 500 Mbps with a low propagation delay of 1 ns.

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