ACPL-5161

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The ACPL-5161 is a high-speed, wide bandwidth series optocouplers from Avago Technologies. It is a single-channel, fast-transition model with an electrically isolated gate driver using an open collector output. It has a high-CMR optocoupler that is capable of providing reliable electrical isolation of up to 3,100 VRMS. This optocoupler provides an ideal solution for data communications, power control, and optical sensing applications.

The ACPL-5161 is targeted for applications requiring high-speed switching and high-performance isolation of signals. It contains an integrated circuit (IC), light-emitting diode (LED), and photodetector (photocell). The IC is the gate driver which provides fast switching speeds with high density. The LED is a light emitter that is capable of emitting light at a certain wavelength. The photocell is a type of photodiode capable of detecting light photons.

The ACPL-5161 features a two-pin, digital output configuration with open collector output. It supports a positive logic, high level, and low level control. When the LED is forward biased, current will flow from the output delivering an active-high signal. When the LED is reverse biased, the output is inactive, delivering an active-low signal. The output has an isolated source-drain voltage of up to 1500 VDC, between the PIN1 and ground.

The ACPL-5161 provides a high-performance, optically isolated interface for control of high power AC and DC electrical circuits. It can be used in power control systems, motor control systems, phase current gate control systems, load control systems, and lighting applications. It is suitable for a wide range of applications such as appliance controls, computer peripherals, office automation, and servers. It also provides interface isolation between various system components and sensors.

The working principle of the ACPL-5161 is based on optocoupling technology. When the input signal is applied to it, current flows through the LED, activating the photodiode. The light emitted by the LED is detected by the photodiode, which then sends the signal to the gate driver IC. The gate driver then drives the output, providing electrical isolation. The output is short circuit protected, with a maximum power dissipation of 500 mW at 25°C and 310 mW at 70°C.

In summary, the ACPL-5161 optocoupler from Avago Technologies is a high-speed, wide bandwidth series gate driver with open collector output, suitable for use in various isolation applications. It utilises optocoupling technology for electrical isolation, featuring a high-density gate driver with a short circuit protection feature and a wide range of operating temperatures. This device provides a fast and reliable interface between various system components, allowing for a wide variety of integrated circuit applications.

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