Product Overview: UCC28C43DRG4 from Texas Instruments

The UCC28C43DRG4 is a high-performance, BiCMOS pulse-width modulator (PWM) controller from Texas Instruments, designed for a wide range of power supply applications. This versatile controller is part of TI's UCC28C4x series, which is renowned for its reliability and efficiency in managing power conversion in various electronic devices.

Key Features

• Flexible Operation: The UCC28C43DRG4 operates at a fixed frequency that can be programmed by the user, offering a range from 100 kHz to 500 kHz. This allows for flexible design choices to match specific application requirements.
• High Performance: With its BiCMOS construction, the device offers the perfect blend of power consumption and speed, ensuring efficient operation even in demanding situations.
• Low Start-Up Current: The start-up current is typically 100 µA, which reduces power consumption during the initial phase of operation, making it suitable for battery-operated and energy-sensitive applications.
• Current Mode Control: The UCC28C43DRG4 features current mode control which provides inherent line feed-forward, cycle-by-cycle current limiting, and ease of loop compensation.
• Trimmed Oscillator Discharge Current: The oscillator discharge current is trimmed to ensure precise duty cycle clamping, which helps to maintain stability and performance across various conditions.
• Automatic Feed-Forward Compensation: This feature helps in maintaining a stable loop response despite variations in input voltage.

Applications

The UCC28C43DRG4 is suitable for a broad range of applications, including:

• DC/DC Converters
• Offline Power Supplies
• AC/DC Adapters
• Battery Chargers
• Power Supplies for Telecom Equipment
• LED Drivers

Package and Quality

The device is offered in a slim SOIC-8 package, which is designed for optimal space-saving on PCB layouts. The UCC28C43DRG4 is also characterized for operation from -40°C to 85°C, ensuring reliable performance across a wide temperature range. Texas Instruments' commitment to quality ensures that each unit is rigorously tested to meet stringent industry standards for performance and reliability.

For engineers and designers looking for a robust and flexible solution for their power management needs, the UCC28C43DRG4 presents itself as an excellent choice, backed by Texas Instruments' reputation for quality and innovation in the semiconductor industry.