HCPL2730V

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Optoisolators are components within electronic circuits that serve the purpose of maintaining electrical isolation between two separate circuits within that unit. The HCPL-2730V is an optoisolator made by Avago Technologies, and its specific application field and working principle will be discussed here.

The HCPL-2730V is a bi-directional optoisolator; it can be used in either direction. It comes equipped with an infrared emitting diode (IRED) that is horizontally mounted and connected to a phototransistor that is mounted in a vertical orientation. This allows it to maintain electrical connectivity between two separate circuits, even if those circuits have different relative ground potentials.

The primary application for the HCPL-2730V is isolation in low voltage logic systems. It has the capability to isolate two circuits at up to 30 Volt DC. Its low power consumption makes it an ideal choice for these types of applications. Additionally, the optoisolator is able to perform functions such as current limitation and indicator lighting for various electronic systems.

The operations of the HCPL-2730V can best be described as follows. When the infrared emitting diode (IRED) is in the off-state, the phototransistor is inactive. When illuminated, the phototransistor turns on and can deliver an output current of up to 15mA with a maximum power dissipation of 250mW. The phototransistor is triggered by the IRED when the voltage across the LED has reached a certain threshold, which is typically around 3 volts.

The HCPL-2730V’s design makes it resistant to noise and voltage surges, which makes it an excellent choice for applications requiring electrical isolation or current limiting. The optoisolator has a high isolation barrier of over 17000Vrms and its operating temperature range is from -40°C to +100°C. Its small size and low power consumption make it ideal for applications within the automotive, industrial control, down-hole, and medical industries.

In conclusion, the HCPL-2730V optoisolator is a bi-directional device featuring an IRED and phototransistor useful for logic circuits. It is primarily designed for electrical isolation at low voltages and can provide current limitation and indicator lighting. Its design makes it ideal for applications in the automotive, industrial control, down-hole, and medical industries. It has a high isolation barrier, low power consumption, and a wide operating temperature range.

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