The UCC28C44DR is a high-performance, BiCMOS off-line controller developed by Texas Instruments. This integrated circuit is designed to provide reliable and efficient power management solutions for a wide range of applications, including switch-mode power supplies, DC-DC converters, and other power conversion systems.

Key Features

• BiCMOS Technology: Combines the low-power benefits of CMOS with the high-speed operation of bipolar transistors.
• Adjustable Operating Frequency: Offers a programmable frequency range from 100 kHz to 1 MHz, allowing for flexibility in design and optimization of power systems.
• Current-Mode Control: Provides fast response to load changes and inherent protection against short circuits, enhancing system reliability.
• Low Startup and Operating Current: Ensures minimal power consumption during startup and normal operation, contributing to overall energy efficiency.
• Trimmed Oscillator Discharge Current: Enables tight control over the frequency tolerance, improving consistency and performance of the power supply.
• Automatic Feed-Forward Compensation: Helps maintain stable operation over a wide range of input voltages and output loads.

Applications

The UCC28C44DR is suitable for a variety of applications that require precise and efficient power regulation. Common applications include:

• AC-DC power supplies for consumer electronics
• Isolated and non-isolated DC-DC converters
• Power supplies for telecommunications equipment
• Industrial power systems

Package and Quality

This device is available in an 8-pin SOIC package, providing a compact footprint for space-constrained applications. The UCC28C44DR is also characterized for operation from -40°C to +85°C, ensuring robust performance in a wide range of environmental conditions. Texas Instruments is committed to high-quality standards, and this product meets stringent reliability requirements for commercial and industrial markets.