UCC28911DR

The UCC28911DR is a highly integrated, high-performance digital controller designed for use in power supply applications, particularly in isolated and non-isolated DC-DC converters. Manufactured by Texas Instruments, this device is part of the UCC2891x family, which is known for its advanced features and capabilities in managing power conversion efficiently.

Key Features:

1. Control Architecture: The UCC28911 employs a peak current mode control architecture, which enhances the stability and transient response of the power supply. This architecture allows for precise control over the output voltage and current, making it suitable for a variety of applications.

2. Integrated Functions: The device integrates several functions that reduce the need for external components. This includes a high-voltage startup circuit, a voltage reference, and a PWM (Pulse Width Modulation) generator. These integrations help streamline the design process and improve reliability.

3. Wide Input Voltage Range: The UCC28911 is designed to operate over a wide input voltage range, typically from 10V to 100V, making it versatile for different power supply designs.

4. High Efficiency: The controller is optimized for high efficiency, which is crucial in reducing power losses and thermal management in power supply systems. This is particularly important in applications where energy efficiency is a priority.

5. Programmable Features: The UCC28911 allows for programmability in terms of switching frequency and other operational parameters, enabling designers to tailor the performance of the power supply to meet specific application requirements.

6. Protection Features: The device includes various protection features such as over-voltage protection (OVP), under-voltage lockout (UVLO), and thermal shutdown, ensuring safe operation under fault conditions.

7. Compact Package: The UCC28911 is available in a compact 16-pin HTQFP (Thin Quad Flat Package), which is suitable for space-constrained applications. This package design also aids in thermal management and improves the overall reliability of the device.

Applications:

The UCC28911 is suitable for a wide range of applications, including:

• Industrial power supplies
• Telecom power systems
• Server and data center power supplies
• Renewable energy systems
• Electric vehicle charging stations

Conclusion:

Overall, the UCC28911DR from Texas Instruments is a robust and efficient digital controller that provides advanced features for power supply design. Its integration of multiple functions, high efficiency, and programmability make it an excellent choice for engineers looking to develop reliable and high-performance power conversion solutions.