UCC2809PWTR-1

AC DC Converters, Offline Switchers Overview

The UCC2809PWTR-1 is an economy primary side controller from Texas Instruments, designed for isolated power supplies. It supports Boost, Flyback, and Forward topologies with a single output. The device operates at a switching frequency of 1 MHz and delivers up to 800 mA output current. Maximum duty cycle is 70%. It functions within a temperature range of -40°C to +85°C and is housed in an 8-pin TSSOP package.

AC DC Converters, Offline Switchers Feature Summary

• Economy primary side control solution
• Supports multiple isolated topologies
• High-frequency switching capability

AC DC Converters, Offline Switchers Applications

• Flyback converter designs
• Forward converter applications
• Boost topology implementations

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix 'PWTR-1' against the manufacturer's official datasheet to confirm pinout and electrical characteristics match your design requirements. Ensure the TSSOP-8 package dimensions align with your PCB footprint. Confirm RoHS compliance status through the latest product documentation before finalizing procurement.

AC DC Converters, Offline Switchers Selection Notes

Select this component for cost-sensitive applications requiring primary side regulation. It is suitable for designs utilizing Flyback, Forward, or Boost topologies where high switching frequency allows for smaller magnetic components. Verify that the 800 mA drive current meets the gate charge requirements of the external MOSFETs in your specific circuit configuration.

AC DC Converters, Offline Switchers Part Context

This part belongs to the UCC2809 series of switching controllers. It is distinct from other TI controllers by its focus on economy primary side control. The 'P' indicates the TSSOP package, while 'WTR' denotes reel packaging. It serves as a specialized alternative for basic isolated power conversion needs.

AC DC Converters, Offline Switchers Replacement Considerations

The UCC2809DTR-1 is a pin-compatible variant in an SOIC-8 package. Verify package compatibility and thermal performance differences when substituting. No other direct substitutes are confirmed in the provided data.