UCC3809PTR-2G4

AC DC Converters, Offline Switchers Overview

The UCC3809PTR-2G4 is an economy primary side controller from Texas Instruments, designed for isolated AC/DC power supplies. It supports Boost, Buck, Flyback, and Forward topologies with a fixed switching frequency of 1 MHz. The device features a maximum duty cycle of 70% and provides an output drive current of 800 mA. It operates within a temperature range of 0°C to +70°C and is housed in an 8-VSSOP surface-mount package.

AC DC Converters, Offline Switchers Feature Summary

• Economy primary-side control architecture
• Supports multiple converter topologies including flyback and forward
• High-frequency operation at 1 MHz

AC DC Converters, Offline Switchers Applications

• Isolated AC/DC power supplies
• Flyback converter designs
• Forward converter applications

AC DC Converters, Offline Switchers Procurement Notes

Verify the suffix G4 indicates RoHS compliance and halogen-free status as per manufacturer standards. Confirm the specific package variant matches design requirements. Ensure supply chain sources are authorized distributors to guarantee component authenticity and traceability.

AC DC Converters, Offline Switchers Selection Notes

Select this component for cost-sensitive applications requiring high-frequency operation. The 1 MHz frequency allows for smaller passive components. Verify that the 800 mA drive current meets gate charge requirements of the external switch. Check thermal constraints for the VSSOP-8 package.

AC DC Converters, Offline Switchers Part Context

This part belongs to the UCC3809 series of primary-side controllers. It shares functional similarities with the UCC3809P-2 and UCC3809DTR-2 but differs in packaging and specific ordering suffixes. The series targets economical power solutions.

AC DC Converters, Offline Switchers Replacement Considerations

UCC3809PTR-2 and UCC3809DTR-2 are functionally similar variants within the same family. Verify pinout compatibility and package dimensions before substitution.