The UCC28710D by Texas Instruments is a state-of-the-art flyback power supply controller designed to deliver exceptional performance and efficiency for AC/DC power applications. This device integrates advanced features to provide a compact and energy-efficient solution for power supply units.

Key Features

• Constant-Voltage (CV) and Constant-Current (CC) Regulation: The UCC28710D ensures stable output under varying load conditions, making it ideal for applications that require precise voltage and current regulation.
• High Efficiency: With its quasi-resonant switching technique, the device minimizes switching losses, thereby maximizing efficiency across a wide range of input voltages and load conditions.
• Low Standby Power: The controller is designed to achieve ultra-low standby power consumption, which is critical for meeting energy-saving standards and reducing environmental impact.
• Primary-Side Regulation: This feature eliminates the need for an optocoupler and secondary feedback circuitry, which simplifies the design and enhances reliability.
• Adjustable Output: The UCC28710D provides flexibility in design by allowing adjustable output through external components.

Applications

The UCC28710D is versatile and can be used in various applications, including but not limited to:

• Smartphone and tablet adapters
• Power supplies for home appliances
• LED lighting drivers
• Standby and auxiliary power supplies

Technical Specifications

With a wide input voltage range, the UCC28710D accommodates global AC voltage standards. The controller operates in a quasi-resonant mode at high load conditions to minimize switching losses and shifts to discontinuous conduction mode at light loads for optimal efficiency. Its integrated high-voltage startup circuit ensures fast startup with minimal power loss.

Package and Availability

The Texas Instruments UCC28710D is available in a SOIC-7 package, providing a compact footprint for space-constrained applications. It is designed for robust performance in industrial temperature ranges and is available for order through Texas Instruments' official distributors.