Product Overview: UCC3813N-4 PWM Controller by Texas Instruments

The UCC3813N-4, part of Texas Instruments' UCC3813 series, is a versatile and efficient low-power pulse width modulation (PWM) controller. This device is an optimal solution for power supply applications requiring a compact, high-performance controller. The UCC3813N-4 is designed to offer precise voltage regulation, improved power efficiency, and enhanced system reliability, making it an ideal choice for a wide range of power management tasks.

Key Features

• Operating Range: The UCC3813N-4 operates at a supply voltage ranging from 8.5V to 16V, making it suitable for various applications and ensuring stable performance across different power levels.
• Frequency: This controller features a fixed-frequency current-mode operation at 1MHz, which allows for the use of smaller external components, reducing the overall footprint and cost of the power supply design.
• High Drive Capability: It comes with a high-current totem-pole output capable of driving a 1A peak, suitable for driving power MOSFETs or IGBTs directly, thus simplifying the design of the power stage.
• Low Startup and Operating Current: The UCC3813N-4 boasts a low startup current of 0.5mA and a low operating current of 2.5mA, contributing to the overall efficiency of the system.
• Protection Features: The device includes a range of protection features such as undervoltage lockout (UVLO), overcurrent protection, and programmable soft start, which enhance system safety and reliability.

Applications

The UCC3813N-4 is highly suitable for a variety of applications, including:

• DC/DC converters
• Offline power supplies
• Telecommunication equipment
• Industrial systems
• Portable devices and power tools

With its robust design, the UCC3813N-4 from Texas Instruments is a reliable and efficient solution for designers looking to improve the performance and efficiency of their power supply systems. Its combination of high-frequency operation, drive capability, and comprehensive protection features make it a versatile component in any power management design.