UCC2802QDRQ1 Integrated Circuits (ICs)

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The UCC2802QDRQ1 is an integrated AC/DC switching power management unit used to convert an unregulated AC input voltage into well-regulated DC outputs, while providing additional functions such as dynamic voltage scaling, overvoltage protection and overcurrent protection. This integrated power management IC is designed for applications requiring high efficiency, low-power losses and small size. Operating over an extended temperature range, it is suited to applications such as embedded systems, consumer and industrial control systems, networking systems and battery-charged systems.

The UCC2802QDRQ1 operating principle is based on a Flyback Topology with a PWM controller, where the primary switch of the flyback converter is modulated by a Pulse Width Modulator (PWM) based on the ramp from the internal oscillator. The secondary switch is integrated, improving the efficiency and design process. The internal oscillator frequency can be set, regulating both average and peak current limits for improved power management.

The UCC2802QDRQ1 has up to four outputs. The first output is the primary switch, which conducts only when the signal from the PWM turns on. The output voltage of the first output is regulated by the internal feedback loop and can be adjusted according to the load demand. The secondary outputs are designed to reduce the voltage and current demand on the primary output. They can be used to provide a regulated output voltage to different load systems, or used as a source of power when the primary is off.

The UCC2802QDRQ1 also has comprehensive protection functions. It provides overcurrent and short-circuit protection, overvoltage protection, current waveform protection, and thermal protection. These protection functions help prevent damage to the device and the system in which it is installed, ensuring the system is protected from the adverse effects of abnormal conditions.

The UCC2802QDRQ1 can be used in a wide range of applications. It is particularly suitable for embedded systems, consumer and industrial control systems, networking systems and battery-charged systems. It can also be used in medical devices, motor control and home appliance control. With its comprehensive protection features and comprehensive operating parameters, it is an ideal choice for many power management applications.

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