UCC2808AQDR-1G4Q1

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The UCC2808AQDR-1G4Q1 is a device used in power management integrated circuits, or PMIC. Specifically, it is an AC/DC converter, off-line switcher, and has several important applications.

The UCC2808AQDR-1G4Q1 operates on one input voltage, and is designed to provide main power to small appliances and other low-power devices. It can be used as a DC-to-DC converter and works with both forward and flyback topologies. The device is capable of supplying up to 1A of current at up to 20V. It can also provide up to 0.6A of standby current with a minimum dropout voltage of only 0.9V.

The UCC2808AQDR-1G4Q1 can provide an output with both forward and flyback topologies. The device does not require any complicated external components, as it includes its own MOSFET driver and other protective functions. It has built-in soft start and over-temperature protection as well. Additionally, its very low quiescent current makes it well-suited for battery-operated applications. Its very low EMI/RFI noise makes it suitable for use in environments where noise is a concern.

The UCC2808AQDR-1G4Q1 is based on a control IC that includes a differential amplifier, voltage reference, and error amplifier. This integrated circuit allows the device to provide precise current and voltage regulation. The device uses an external loop compensation capacitor to set the switching frequency, which is adjustable from 50kHz to 300kHz. This allows the design of very efficient systems.

In addition to its main functions, the UCC2808AQDR-1G4Q1 provides several other features that can be used for safety and reliability. For example, it provides both over-current and over-voltage protection, as well as comprehensive under-voltage protection. This ensures that the device will not be damaged in operation, even when subjected to extreme conditions.

In summary, the UCC2808AQDR-1G4Q1 is a powerful, yet compact, AC/DC converter, off-line switcher. It is well-suited for a variety of applications, including those that require efficient, noise-free operation or safety and reliability. Its simple external circuitry and high efficiency make it an attractive solution for designers seeking a reliable power source.

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