The UCC28C45DGKRG4 is a high-performance, biCMOS pulse-width modulation (PWM) controller from Texas Instruments designed for a wide range of power supply applications. This versatile controller provides an efficient solution for offline and DC-to-DC converter applications, offering enhanced features that improve system reliability and performance.

Key Features

• Operating Range: The device features a wide input voltage range, making it suitable for a variety of power supply designs.
• Current Mode Control: Current mode control provides fast transient response and excellent loop stability.
• High-Frequency Operation: Capable of operating at high frequencies up to 1 MHz, allowing for smaller components and reduced space.
• Low Startup and Operating Current: The UCC28C45DGKRG4 boasts a low startup current of typically 0.5 mA and an operating current of typically 2.5 mA, contributing to high efficiency.
• Programmable Soft Start: The soft start feature limits the inrush current and reduces stress on the power supply during startup.
• Under-Voltage Lockout (UVLO): Both line and low-side UVLO circuits prevent the controller from operating at insufficient voltages.
• Trimmed Oscillator Discharge Current: Ensures precise duty cycle clamping, which is critical for reliable operation and protection.

Applications

• Offline Power Supplies
• DC-to-DC Converters
• AC-to-DC Adapters
• Telecommunication Equipment
• Industrial Power Systems

With its advanced features and robust design, the UCC28C45DGKRG4 is an excellent choice for engineers looking to develop efficient and compact power supply systems. Texas Instruments' commitment to quality ensures that this PWM controller meets the high standards required for industrial and commercial applications.

Package and Availability

The UCC28C45DGKRG4 is available in an 8-pin VSSOP (DGK) package, providing a compact footprint for space-constrained applications. For pricing, samples, and detailed specifications, visit the Texas Instruments website or contact an authorized distributor.