The UCC2813PW-4 is a high-performance, biCMOS pulse width modulation (PWM) controller from Texas Instruments, designed for a wide range of power supply applications. This versatile device is part of the UCC2813-x series, where the 'x' denotes the different versions with varying reference voltages and switching frequencies. The UCC2813PW-4, in particular, is optimized for efficient power conversion and robust operation in both isolated and non-isolated power systems.

Key Features

• Operating Frequency: The UCC2813PW-4 operates at a fixed frequency of 1MHz, which allows for smaller external components, reduced noise, and improved power density.
• Advanced BiCMOS Technology: This technology ensures low power consumption and improved noise immunity, making the device suitable for high-performance applications.
• Wide Supply Voltage Range: The controller can handle a supply voltage range from 8.5V to 18V, providing flexibility in various power supply designs.
• Low Startup Current: The device features a startup current of typically 100µA, which contributes to the efficiency of the power supply.
• Programmable Duty Cycle: With a maximum duty cycle clamped at 50%, the UCC2813PW-4 ensures reliable operation and prevents transformer saturation in transformer-based applications.
• Output Drive Capability: The controller can source or sink up to 1A peak current, making it capable of driving large MOSFETs or IGBTs directly.

Applications

The UCC2813PW-4 is suitable for a variety of applications, including offline power supplies, DC-DC converters, telecom power systems, and industrial power supplies. Its high-frequency operation is particularly advantageous for applications requiring compact size and high efficiency.

Package and Quality

Packaged in a 14-pin TSSOP (Thin Shrink Small Outline Package), the UCC2813PW-4 is designed for surface-mount technology, providing a space-saving solution for modern electronic boards. Texas Instruments is known for its commitment to quality, and this product is no exception, meeting stringent industry standards for reliability and performance.