Product Overview: UCC3813PW-5 from Texas Instruments

The UCC3813PW-5 is a high-performance, low-power, fixed-frequency current-mode PWM controller from Texas Instruments. Designed specifically for power supply applications, this device offers a compact solution for driving MOSFETs in a variety of DC-DC converters. It is part of the UCC3813 series, which are known for their reliability and efficiency in power management tasks.

Key Features

• Operating Frequency: The UCC3813PW-5 operates at a fixed frequency of 500 kHz, which allows for a good balance between efficiency and component size, enabling compact power supply designs.
• High Current Drive Capability: It is capable of delivering 1A peak output current, ensuring robust drive capability for the power MOSFET.
• Low Startup and Operating Current: The device features a low startup current of typically 0.15 mA and an operating current of typically 2.5 mA, making it suitable for power-sensitive applications.
• Voltage Feed-Forward Modulation: This feature provides improved response to input voltage changes, which is particularly beneficial in applications where input voltage variations are common.
• Programmable Soft-Start: The UCC3813PW-5 includes a soft-start function to prevent inrush current at startup, enhancing system reliability.
• Protection Features: It incorporates comprehensive protection features such as under-voltage lockout (UVLO), over-current protection (OCP), and thermal shutdown, safeguarding the power supply and the end application against various fault conditions.

Applications

The UCC3813PW-5 is versatile and can be used in a wide range of applications, including:

• Off-line and DC-to-DC power supplies
• Telecommunications equipment
• Industrial systems
• Portable devices
• Networking equipment

Packaging and Quality

Encased in a 14-pin TSSOP package, the UCC3813PW-5 is designed to meet the space-saving needs of modern circuit designs. Texas Instruments is committed to high-quality manufacturing and the device adheres to stringent quality control standards, ensuring reliability and performance in demanding applications.