UCC28086DG4

The UCC28086DG4 is a high-performance, dual-phase, interleaved, synchronous buck controller designed by Texas Instruments. It is primarily used in power supply applications, particularly for high-efficiency DC-DC converters. Here’s a detailed description of its features and specifications:

Key Features:

1. Dual-Phase Operation: The UCC28086 supports interleaved operation, allowing two phases to work together to reduce input and output ripple currents, improving overall efficiency and thermal performance.

2. Wide Input Voltage Range: The device can operate over a broad input voltage range, typically from 4.5V to 60V, making it suitable for various applications, including industrial and automotive power supplies.

3. High Efficiency: The controller is designed to achieve high efficiency, often exceeding 95%, by utilizing synchronous rectification and advanced control techniques.

4. Current Mode Control: It employs current mode control for improved transient response and stability, allowing for precise control of the output voltage and current.

5. Programmable Switching Frequency: The UCC28086 allows users to set the switching frequency, typically ranging from 100 kHz to 1 MHz, providing flexibility in design and optimization for specific applications.

6. Integrated Features: The device includes several integrated features such as soft-start, over-voltage protection (OVP), under-voltage lockout (UVLO), and thermal shutdown, enhancing reliability and safety in operation.

7. Power Good Indicator: It features a power good output that signals when the output voltage is within the desired range, allowing for system-level monitoring.

8. Compensation Network: The UCC28086 includes an internal compensation network, simplifying the design process and reducing the need for external components.

9. Thermal Performance: The device is housed in a thermally efficient package, typically a 20-pin HTQFP (Thin Quad Flat Package), which aids in heat dissipation and allows for compact designs.

Applications:

The UCC28086 is suitable for a variety of applications, including:

• Power supplies for servers and data centers
• Telecom equipment
• Industrial automation systems
• Automotive power management
• Battery management systems

Conclusion:

The UCC28086DG4 from Texas Instruments is a versatile and efficient buck controller that provides designers with the tools needed to create high-performance power supply solutions. Its combination of dual-phase operation, high efficiency, and integrated protection features makes it an excellent choice for demanding applications in various industries.