Product Overview: UCC2813QDR-2Q1 from Texas Instruments

The UCC2813QDR-2Q1 is a high-performance, low-power BiCMOS current-mode pulse-width modulation (PWM) controller from Texas Instruments. It is designed to cater to a wide range of power supply applications, offering precise regulation and efficient power conversion. This device is part of the UCC2813-x series, where 'x' denotes the different options for the turn-off threshold voltage, and the -2 variant specifically offers a 2.5V turn-off threshold.

Key Features

• High-Frequency Operation: The UCC2813QDR-2Q1 can operate at frequencies up to 1MHz, allowing for smaller external components and reduced system size and cost.
• Low Startup and Operating Current: It features a low startup current of typically 0.5µA and a low operating current of typically 2.5mA, enhancing the overall efficiency of the application.
• Trimmed Oscillator Discharge Current: This ensures consistent and reliable operation, contributing to the stability of the PWM operation.
• Peak Current Mode Control: This mode provides inherent line feed-forward, cycle-by-cycle current limiting, and ease of loop compensation.
• Automatic Feed-Forward Compensation: This feature helps in maintaining a stable loop performance under varying input voltage conditions.
• Pulse-by-Pulse Current Limiting: Enhances the protection of the controller and the power supply under overcurrent conditions.
• Under-Voltage Lockout (UVLO): Both on startup and running, the UVLO ensures that the controller operates at the correct voltage levels.

Applications

The UCC2813QDR-2Q1 is suitable for a variety of applications, including:

• Offline power supplies
• DC-DC converters
• Telecommunication systems
• Industrial power systems
• Portable electronics

Quality and Reliability

As with all Texas Instruments products, the UCC2813QDR-2Q1 is manufactured to the highest quality standards and is designed for robust and reliable operation in a variety of conditions. It is available in a SOIC-14 package, providing a compact solution for space-constrained applications.

For detailed information about the UCC2813QDR-2Q1, including datasheets, technical documents, and support resources, customers can visit the Texas Instruments website or contact their support team.