Product Overview: UCC2813PW-0 by Texas Instruments

The UCC2813PW-0 is a high-performance, fixed-frequency current-mode PWM controller from Texas Instruments, designed to deliver precise power control and regulation for a wide variety of applications. This integrated circuit is part of the UCC2813-x family of devices, where each member has a different fixed frequency. Specifically, the UCC2813PW-0 operates at a frequency of 100kHz, making it suitable for applications requiring a balance between efficiency and manageable component sizes.

Key Features

• Current-Mode Control: This feature provides improved transient response, simplified loop compensation, and inherent protection against overcurrent conditions.
• Trimmed Oscillator Discharge Current: The internal oscillator's discharge current is trimmed to ensure a consistent and accurate switching frequency over the entire temperature range.
• Low Startup and Operating Current: The UCC2813PW-0 boasts a low startup current of typically 100μA and an operating current of typically 1.5mA, enhancing overall system efficiency.
• High Current Totem Pole Output: Capable of directly driving a power MOSFET, the totem pole output is sourced and sunk by a high current output stage with a 1-A peak.
• Automatic Feed Forward Compensation: This feature helps to maintain a stable loop gain over a wide range of input voltages.
• Pulse-by-Pulse Current Limiting: The UCC2813PW-0 provides enhanced protection for the power switch by limiting the current on a per-cycle basis.
• Undervoltage Lockout (UVLO): Both line and low-side UVLO circuits ensure that the controller shuts down if the supply voltage drops below a threshold, preventing malfunction.

Applications

The UCC2813PW-0 is versatile and can be used in a variety of power supply configurations, including:

• Off-line power supplies
• DC-DC converters
• Telecom and datacom power systems
• Industrial power systems

Package and Quality

Encased in a 14-pin TSSOP (Thin Shrink Small Outline Package), the UCC2813PW-0 is designed for surface mount technology, enabling compact and efficient designs. Texas Instruments ensures the highest quality and reliability, with each device being rigorously tested to meet stringent industry standards.

With its robust feature set, the UCC2813PW-0 is an excellent choice for designers looking to create efficient, reliable, and cost-effective power supply solutions.