HCPL-M700-500E

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The HCPL-M700-500E optoisolator from Avago Technologies is a transistor, photovoltaic output, optoisolator designed for industrial motor control, and professional audio applications. It is a low cost, single channel, optoisolator that isolates a low-voltage logic signal from the noise of a power circuit, providing electrical isolation between the logic-level preamp signal and the motor drive signal.

The optoisolator provides galvanic isolation up to 1500 volts between the input and output circuits. It also eliminates ground loop noise created by the inductive load of the motor. The HCPL-M700-500E features a photocoupler in the detection element. This photocoupler includes a light emitter (LED) and a light-sensitive transistor which, when exposed to light, can close the output circuit when the input is triggered.

The LED is connected to logic-level preamp signal and the light sensitive transistor is connected to the motor drive signal circuit, forming an isolated barrier between the two circuits. The LED emits light when the logic-level preamp signal is triggered, causing the light sensitive transistor to close the output circuit, turning on the motor drive signal. The HCPL-M700-500E is designed for low-level input signals such as a 0.5–12 VDC; its response time is 1 ms (typical) and its optical emission current is 30-100mA.

The optoisolator also features a built-in operating temperature range of -40° to 85°C and is designed to withstand a dielectric strength of 1000V. These features make the HCPL-M700-500E optimal for applications in motor control, motor power supply and for use in professional audio applications. Additionally, optoisolators are most commonly used in medical equipment, industrials process controls, automotive and aerospace systems, and other applications that involve signal isolation.

Overall, the HCPL-M700-500E transistor, photovoltaic output, optoisolator is an ideal choice for a wide variety of industrial and commercial applications, providing electrical isolation and eliminating ground loop noise from the motor drive. Its built-in operating temperature range and dielectric strength enables the HCPL-M700-500E to withstand the rigors of industrial motor control and professional audio applications. This optoisolator provides a reliable and efficient way to isolate low-voltage logic signals from the noise of a power circuit.

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