Overview of Texas Instruments UCC3808AN-2

The UCC3808AN-2 is a compact, low-power pulse width modulation (PWM) controller designed by Texas Instruments (TI) for a wide range of power supply applications. This integrated circuit is engineered to provide reliable and efficient control for switch-mode power supplies, including isolated and non-isolated topologies.

Key Features

• Low Start-up and Operating Current: The UCC3808AN-2 boasts an ultra-low start-up current of 0.5 µA and an operating current of 5 mA, making it an energy-efficient solution for power systems.
• Programmable Switching Frequency: Users can set the switching frequency anywhere from 4 kHz to 1 MHz, providing flexibility to optimize the power supply for efficiency, size, and performance.
• Current-Mode Control: This feature simplifies loop compensation, improves transient response, and enables parallel operation for higher power applications.
• Soft Start: The soft-start functionality prevents inrush current at start-up, enhancing the reliability and lifespan of the power supply.
• Trimmed Oscillator Discharge Current: Ensures consistent and accurate frequency settings over the entire temperature range.

Applications

The UCC3808AN-2 is versatile and can be used in a variety of applications, including:

• DC-DC Converters
• Off-Line Power Supplies
• Telecom Power Systems
• Portable Electronics
• Industrial Power Systems

Package and Reliability

The device is available in an 8-pin PDIP (Plastic Dual-In-Line Package), which is well-suited for through-hole PCB mounting. TI's commitment to quality ensures that the UCC3808AN-2 meets high-reliability standards, making it a trustworthy component for critical power management tasks.

Design Support

Designers can leverage a host of resources provided by Texas Instruments, including application notes, reference designs, and simulation tools to expedite the design process and optimize the performance of their power supply using the UCC3808AN-2.