UCC28C44DR Integrated Circuits (ICs)

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The UCC28C44DR integrated circuit (IC) is a framing power monitoring and sequencing integrated circuit that contains a single-phase synchronous buck converter. This IC is part of the Constant On-Time (COT) controller family and it is used in a variety of offline switcher and AC to DC converter applications. Its working principle involves monitoring and sequencing multiple power rails to maintain a safe and efficient system.

The UCC28C44DR\'s operating voltage range is from 4.5V to 28V, and its operating temperature range is -40°C to +85°C. The IC includes a current-mode buck control loop, a low-battery monitor, voltage monitoring, thermal protection, and automatic fault recovery logic. The current-mode control loop helps to ensure a high degree of efficiency and accuracy and the low-battery monitor provides a reliable and accurate under-voltage (UV) and over-voltage (OV) detection.

The voltage monitoring feature allows for accurate voltage and current measurement, enabling the IC to automatically power down the device in the event of an OV or UV situation. Thermal protection ensures safe operation of the IC by monitoring its temperature and suspending operation when it reaches a predetermined threshold. The IC also contains an automatic fault recovery logic, which can recover from start-up failure, over-voltage, under-voltage, over temperature, over-current, and over-load conditions.

The UCC28C44DR is used in a variety of AC to DC converter and offline switcher applications, such as switched-mode power supplies (SMPS), server power supplies, computer notebooks, power adapters, mobile phone chargers, and more. In such applications, the device can be used to monitor multiple power rails and maintain safe and efficient operation.

The UCC28C44DR is a high-performance integrated circuit for AC to DC and offline switcher applications. It contains features such as current-mode buck control, monitoring and sequencing, voltage monitoring, thermal protection, and fault recovery logic for a safe and efficient system power operation. With its extended voltage and temperature range, the UCC28C44DR is an excellent device for a wide range of AC to DC converter and offline switcher applications.

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