UCC2804PW

Overview

The UCC2804PW is a low-power BiCMOS current-mode PWM controller manufactured by Texas Instruments. It operates within a supply voltage range of 8.3V to 12V and supports switching frequencies up to 1 MHz. The device features a maximum duty cycle of 50% and provides a 1A output drive capability. It is housed in an 8-pin TSSOP package and functions across an operating temperature range from -40°C to +85°C.

Feature Summary

• Implements current-mode PWM control architecture for efficient power regulation
• Designed with low-power BiCMOS technology to minimize quiescent current consumption
• Supports versatile converter topologies including boost, flyback, and forward configurations

Applications

• Battery-powered portable equipment requiring high efficiency
• Universal AC-DC adapters and offline power supplies
• DC-to-DC converters for industrial and consumer electronics

Procurement Notes

Verify the specific suffix 'PW' confirms the TSSOP-8 package variant when ordering. Confirm that the required operating temperature range aligns with the commercial grade specifications (-40°C to +85°C). Ensure design compatibility with the 1MHz maximum switching frequency and 50% duty cycle limits defined in the official datasheet.

Selection Notes

Select this component for applications prioritizing low standby power consumption alongside moderate switching speeds. The current-mode control offers inherent line feedforward and simple compensation. Consider the TSSOP-8 package constraints for thermal management and PCB layout requirements compared to larger packages.

Part Context

This part belongs to the UCC2804 family of low-power PWM controllers. It shares functional similarities with other members like the UCC2804D but differs in packaging. The series is designed for cost-sensitive, battery-operated applications where power efficiency is critical.

Replacement Considerations

The UCC2804QDRQ1 serves as a qualified automotive-grade alternative within the same family. Verify pinout compatibility and ensure the target application meets the specific qualification standards required for the replacement.