Product Overview: UCC2803PW Low-Power BiCMOS Current-Mode PWM Controller

The UCC2803PW from Texas Instruments is a high-performance, low-power Pulse Width Modulation (PWM) controller that is an integral component in power supply design. This device is designed using BiCMOS technology, which combines the benefits of both bipolar and CMOS transistors to achieve high-speed operation and low-power consumption.

Key Features

• Low Start-Up Current: The UCC2803PW boasts a very low start-up current of 0.5µA typical, which makes it an excellent choice for battery-operated and energy-efficient applications.
• High-Frequency Operation: With an operational frequency range up to 1MHz, this controller supports the design of compact power supplies that require smaller components and reduced physical size.
• Current-Mode Control: Current-mode control provides inherent line feed-forward, cycle-by-cycle current limiting, and ease of loop compensation.
• Trimmed Oscillator Discharge Current: This feature ensures consistent and accurate timing performance across the full range of operating conditions.
• Low Operating Current: Operating current is specified at 2.5mA typical, contributing to the overall efficiency of the power supply.

Applications

The UCC2803PW is versatile and can be used in a variety of applications, including:

• Offline Power Supplies
• DC-DC Converters
• Battery Chargers
• Power Supply Supervision and Control Circuits

Package and Quality

The UCC2803PW is offered in a TSSOP-8 (PW) package, providing a compact solution for space-constrained applications. Texas Instruments is committed to delivering high-quality products, and this PWM controller is no exception. It is designed to meet the rigorous demands of the industry, ensuring reliability and performance in your power supply designs.

Conclusion

With its combination of low-power operation, high frequency, and current-mode control, the UCC2803PW from Texas Instruments is an excellent choice for designers looking to create efficient, reliable, and compact power supply systems. Its wide range of applications and robust package make it a versatile component for numerous electronic products.