The UCC2802D from Texas Instruments is a versatile and efficient low-power BiCMOS current-mode pulse-width modulation (PWM) controller designed for a wide range of power supply applications. This device incorporates advanced features to provide high-performance solutions for off-line and DC-to-DC converter configurations.

Key Features

• Low Startup and Operating Current: The UCC2802D is designed to consume minimal power with a startup current of typically 0.5 µA and an operating current of typically 2.5 mA, making it an excellent choice for energy-sensitive applications.
• High-Frequency Operation: With an operational range up to 1 MHz, this controller enables the design of power supplies with smaller components, reducing size and cost.
• Current Mode Control: Current mode control provides inherent line feed-forward, cycle-by-cycle current limiting, and ease of loop compensation.
• Automatic Feed-Forward Compensation: The device offers excellent regulation over a wide range of input voltages without the need for external components.
• Trimmed Oscillator Discharge Current: This feature ensures precise duty cycle clamping, which is critical for the protection and reliable operation of the power supply.

Applications

The UCC2802D is suitable for a variety of applications, including:

• Off-line power supplies
• DC-to-DC converters
• Portable devices
• Communication power supplies
• Green-mode power supplies

Quality and Reliability

Texas Instruments is renowned for its commitment to quality and reliability. The UCC2802D is no exception, being manufactured in a high-tech facility ensuring that each unit meets TI's stringent standards. This product is available in an 8-pin SOIC package, providing a compact solution for space-constrained applications.

Support and Resources

Designers can take advantage of Texas Instruments' extensive support network, which includes technical documentation, reference designs, and customer support to expedite the design-in process and help bring products to market faster.