UCC2809DTR-1

AC DC Converters, Offline Switchers Overview

The UCC2809DTR-1 is an economy primary side controller from Texas Instruments, designed for switching power supply applications. It supports Boost, Flyback, and Forward topologies with a fixed 1 MHz switching frequency. The device features a maximum duty cycle of 70% and provides a single output capable of delivering up to 800 mA at 10 V. It operates within a temperature range of -40°C to +85°C and is housed in an SOIC-8 surface-mount package.

AC DC Converters, Offline Switchers Feature Summary

• Supports multiple converter topologies including Boost, Flyback, and Forward configurations.
• Integrates current-mode control architecture for efficient regulation.
• Features a high-frequency 1 MHz switching capability to reduce passive component size.

AC DC Converters, Offline Switchers Applications

• Boost converter designs
• Flyback power supplies
• Forward converter implementations

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix 'DTR-1' against official Texas Instruments documentation to confirm the SOIC-8 package and reel packaging configuration. Ensure compatibility with the required operating temperature range of -40°C to +85°C for your specific application environment before finalizing procurement.

AC DC Converters, Offline Switchers Selection Notes

Select this component when designing cost-effective power supplies requiring primary-side regulation. It is suitable for applications needing a 1 MHz switching frequency and support for Boost, Flyback, or Forward topologies. Verify that the 800 mA output drive capability meets the gate drive requirements of the external MOSFETs in your design.

AC DC Converters, Offline Switchers Part Context

This part belongs to the UCC2809 series of economy primary side controllers manufactured by Texas Instruments. These devices are optimized for high-frequency operation and are intended for use in compact power management solutions where component count and cost efficiency are critical design constraints.

AC DC Converters, Offline Switchers Replacement Considerations

Consult official substitution guides for compatible alternatives such as the UCC3809DTR-1 or UCC2809PWTR-1G4, ensuring pinout and electrical specifications match the original design requirements.