UCC2808AD-1G4

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The UCC2808AD-1G4 is a highly efficient AC-DC converter and offline switcher from Texas Instrument which offers high levels of integration and features including a wide isolated power range from 48V to 100V. It offers several features such as a proven \'auto restart\' mode for short-term or brownout overvoltage faults, protection for short-circuit, thermal shutdown and open-load outputs. This makes it suitable for several applications including computers and peripherals, networking and telecom equipment, motor drives and appliances.

Working Preinciple

The UCC2808AD-1G4 is an AC-DC converter that converts AC power to DC power. It is based on a topology known as the full bridge rectifier which uses four switches to convert a sinusoidal input to a direct current output. The device works by using the high frequency switching voltage across the two ends of the transformer and rectifying the voltage produced. The MOSFETs in the device are the switches and they are controlled by the IC. When an alternating current passes through the device, it is rectified and the capacitors in the circuit are used to filter the voltage and store energy.

In addition to the rectification process, the IC also provides short-circuit and overvoltage protection. The short-circuit protection works by monitoring the voltage produced by the transformer and, in the event of a short-circuit, limiting the current in the circuit. The overvoltage protection works by triggering the IC in the event that the output voltage is too high. This triggers the protective circuitry which shuts down the device to prevent any damage.

Application Field

The UCC2808AD-1G4 is widely used in applications that require reliable conversion of AC to DC power. It is ideal for use in a variety of applications including TVs and video game consoles, cameras and video equipment, medical equipment, and industrial automation. The UCC2808AD-1G4 is also commonly used in computing and communications systems, as well as in robotic, industrial, and telecom applications. Additionally, it is used in vending machines, medical instrumentation, language labs, and audio/visual equipment.

Due to its high efficiency, the UCC2808AD-1G4 is also suitable for use in energy-saving applications. This includes residential and commercial buildings which require efficient AC-DC conversion for power distribution, and power networks which require reliable operations and energy efficiency.

Conclusion

The UCC2808AD-1G4 is a highly integrated AC-DC converter and offline switcher from Texas Instrument. It offers several features such as short-circuit and overvoltage protection which make it suitable for a variety of applications. Its high efficiency makes it an ideal choice for energy-saving applications such as residential and commercial buildings, industrial automation, and power networks. As such, the UCC2808AD-1G4 is an ideal choice for a wide range of applications.

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