HCPL-0661-000E

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HCPL-0661-000E are Optoisolators - Logic Output components. As the name suggests, it is an isolator device which connects two circuits electrically but still isolates them. This makes it ideal for use in applications where there is a requirement for both electrical isolation and the ability to transfer digital signals.

HCPL-0661-000E consists of a blocking diode which is connected to an 8-pin Multi-Source Agreement (MSA) socket. The input is a low-level logic signal that is supplied to the diode. The output is a logic-level signal originating from the output of the MSA socket. The HCPL-0661-000E derives its power from the logic signal input, which is regulated by the internal regulator.

The main application of HCPL-0661-000E is to provide protection against electrical damage caused by faulty wiring in electronic boards and circuits. It also provides isolation between high-level systems such as microprocessors, which operate at voltages of up to 5V, and low-level systems such as relays, which are designed to work at voltages as low as 5mV.

The working principle of HCPL-0661-000E is based on photocoupling. It consists of an infrared light-emitting diode and a photoresistor connected in series at the input side of the device. The input logic signal is converted into an infrared signal which is incident on the photoresistor. This in turn generates an output voltage that is proportional to the input logic signal.

The output signal produced by the photoresistor is fed into an operational amplifier, which is specifically designed to amplify the output signal. This output signal is then supplied to the 8-pin MSA socket, where it serves as an input for the logic level circuit. The output signal produced by the 8-pin MSA socket is then fed into a logic level circuit, where it is converted into a logic level output.

In summary, HCPL-0661-000E is an Optoisolator - Logic Output component which provides protection against electrical damage caused by faulty wiring in electronic boards and circuits. It works on the principle of photocoupling and is designed to transfer digital signals between high-level and low-level systems. It consists of an infrared light emitting diode and a photoresistor connected in series at the input side of the device, and an operational amplifier, an 8-pin MSA socket and a logic level circuit at the output side of the device.

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