UCC28221DRG4

AC DC Converters, Offline Switchers Overview

The UCC28221DRG4 is an isolated offline flyback converter controller manufactured by Texas Instruments. It features a 2 MHz switching frequency and supports dual interleaved operation for high-power applications. The device is housed in a 16-SOIC package and operates within a temperature range of -55°C to 150°C junction temperature. It integrates current mode control with programmable maximum duty cycle capabilities, designed for efficient power management in AC/DC conversion systems.

AC DC Converters, Offline Switchers Feature Summary

• Supports dual interleaved operation for enhanced power density
• Integrates current mode control architecture
• Features programmable maximum duty cycle functionality

AC DC Converters, Offline Switchers Applications

• High-frequency power supply designs
• AC/DC converter systems
• Offline flyback topology implementations

AC DC Converters, Offline Switchers Procurement Notes

Verify the component status as obsolete before procurement planning. Confirm that the 16-SOIC package matches your PCB footprint requirements. Ensure compatibility with the specified operating temperature range of -55°C to 150°C junction temperature. Cross-reference the datasheet for any specific ordering suffixes or alternative recommendations from the manufacturer.

AC DC Converters, Offline Switchers Selection Notes

Select this controller for applications requiring high-frequency operation at 2 MHz. Consider its suitability for dual interleaved configurations to reduce input ripple. Evaluate the current mode control benefits for transient response. Verify that the 16-SOIC surface mount package fits the assembly constraints. Check if the programmable duty cycle meets the specific voltage regulation needs.

AC DC Converters, Offline Switchers Part Context

This component belongs to the UCC28221 series of isolated offline flyback controllers. It is part of Texas Instruments' portfolio for power management ICs. The device is categorized under AC/DC converters and offline switch controllers. It shares architectural similarities with other interleaved controllers but is distinct due to its specific frequency and package options.

AC DC Converters, Offline Switchers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Due to the obsolete status, direct replacements should be verified through official Texas Instruments channels or approved design-in alternatives.