HMAA2705R2

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The HMAA2705R2 optically coupled isolator combines a gallium arsenide LED and an integrated phototransistor detector. It is configured as a transistor, photovoltaic output optic coupling isolator. This isolator is commonly used in applications in which electrical currents and voltages need to be isolated from one another. The isolation is typically required to allow for safe and reliable functioning of the device, to avoid inter-circuit contamination, and/or signal interference.

This optically isolated device uses the physical properties of light for eventually for switching an electrical load circuit when triggered by an electrical input circuit. When the input watts are between 5 and 30 millivolts, the LED emits infrared light. The phototransistor embedded within the device then converts the light into an electrical signal which is used to energize or de-energize the output circuit.

The HMAA2705R2 is well suited for applications with signal splitters, dynamic logic circuits and digital circuits. It is also suitable for analogue signal processing and modem interfacing and for interface boards. The optoisolator can perform direct motor oscillator circuits, receive digital signals and drive analog motor signals.

The isolator has wide applications in consumer electronics and utilizes high robustness in low and high temperatures. One of the major advantages of this type of optical isolator is thermal speed derivation, which is very important when handling fast switching times. The lifetime of the device is approximately 10,000 hours and its performance is not affected by noise interference.

The operating voltage of the device is 5-30V and it has a maximum storage temperature of -40°C to + 85°C. It also features 100mA maximum current, single-bit operation, power supply transient immunity, light occlusion detection and high input impedance. It has an 8ns rise time and operates in the 420nm to 830nm wavelength region.

The HMAA2705R2 optoisolator is being used for various applications where voltage isolation is needed. It can be used for motion control applications, such as stepper motor drives, as well as for gate drivers that drive relay contacts. It is also widely used in the automotive industry for DC/DC converters and motor control circuits.

In summary, the HMAA2705R2 optoisolator is a transistor, photovoltaic output optical isolator which is used in applications that require voltage isolation. It is suitable for use in high and low temperature conditions and has an 8ns rise time, as well as a lifetime of 10,000 hours. It can be utilized in a variety of applications, including motor control circuits, motion control applications, gate drivers and DC/DC converters.

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