The UCC3813N-3 is a high-performance, low-power pulse-width modulator (PWM) integrated circuit from Texas Instruments, designed for a wide range of power supply applications. As part of the UCC3813x family, it offers a variety of features that make it ideal for designing flexible and efficient power management systems.

Key Features

• Voltage Range: The device operates with a supply voltage range that typically spans from 8.5V to 21V, providing ample flexibility for various applications.
• Frequency: It features a fixed-frequency PWM operation with a nominal frequency of 100kHz, which can be beneficial for designing compact power supplies with predictable behavior.
• Low Power Consumption: The UCC3813N-3 is optimized for low power consumption, with a typical start-up current of 100µA and an operating current of 2.5mA, making it suitable for energy-sensitive applications.
• Drive Capability: It can deliver up to 1A peak output current to the gate of a power MOSFET, enabling the control of a wide range of power stages.
• Protection Features: The device includes a variety of protection features such as undervoltage lockout (UVLO), overcurrent protection, and thermal shutdown, ensuring reliable operation under adverse conditions.

Applications

The UCC3813N-3 is versatile and can be used in multiple applications, including:

• Switch-mode power supplies (SMPS)
• DC-DC converters
• Power factor correction (PFC) circuits
• Offline power converters
• Telecommunication equipment

Quality and Reliability

Texas Instruments is known for its commitment to quality and reliability, and the UCC3813N-3 is no exception. It is designed to meet the stringent requirements of industrial and commercial power supply designs, ensuring long-term stability and performance. The device is available in a PDIP-8 package, providing a robust and easy-to-handle component for PCB assembly.

For engineers and designers looking for a reliable and efficient PWM controller, the UCC3813N-3 from Texas Instruments represents a dependable choice, offering the right balance of features, performance, and protection for advanced power supply solutions.