UCC28221D

AC DC Converters, Offline Switchers Overview

The UCC28221D is a dual interleaved PWM controller designed for high-frequency power conversion applications. It operates with a switching frequency of 2 MHz and supports Flyback and Forward topologies. The device features a programmable maximum duty cycle up to 90% and includes UVLO thresholds of 13V/8V. It is housed in a 16-SOIC package, suitable for surface mount installation, and functions within a temperature range of -40°C to +105°C.

AC DC Converters, Offline Switchers Feature Summary

• Dual interleaved control architecture for enhanced power handling
• Programmable maximum duty cycle capability
• High switching frequency operation at 2 MHz

AC DC Converters, Offline Switchers Applications

• Two phase interleaved PFC pre-regulators
• Offline flyback converters
• Forward topology power supplies

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix 'D' indicates tube packaging when sourcing. Confirm the operating temperature range meets system requirements of -40°C to +105°C. Ensure the 16-SOIC footprint matches the PCB layout. Cross-reference the datasheet for electrical characteristics against design specifications before finalizing procurement.

AC DC Converters, Offline Switchers Selection Notes

Select this component for designs requiring dual interleaved control to reduce input ripple. The 2 MHz frequency allows for smaller passive components. Verify compatibility with current mode control schemes. Ensure the 13V/8V UVLO levels align with the available supply rails in the target application circuit.

AC DC Converters, Offline Switchers Part Context

This part belongs to the UCC28220 series of automotive-grade controllers. It shares functional similarities with the UCC28220 but may differ in specific qualification or packaging details. The series is optimized for high-efficiency offline power conversion systems requiring precise interleaving.

AC DC Converters, Offline Switchers Replacement Considerations

The UCC28220DR is a related variant within the same family. Verify pinout compatibility and electrical parameter alignment before substitution. Check if the alternative package type meets mechanical constraints.