UC2854BDWG4

Overview

The UC2854BDWG4 is an advanced high-power factor preregulator manufactured by Texas Instruments. It operates within a supply voltage range of 10 V to 20 V and supports switching frequencies up to 115 kHz. The device functions in average current mode control with pulse width modulation techniques. It is housed in a 16-pin SOIC package and is rated for operation between -40°C and +85°C. The component draws a maximum power supply current of 18 mA and features zero power detection capabilities.

Feature Summary

• Implements average current mode control for precise power factor correction
• Integrates zero power detection functionality
• Supports pulse width modulation control techniques

Applications

• High-power factor preregulator circuits
• Power factor correction systems
• Advanced power supply designs

Procurement Notes

Verify the G4 suffix indicates lead-free construction and RoHS compliance. Confirm the BDW designation corresponds to the specific temperature grade and SOIC-16 package variant. Ensure the ordering part number matches the required commercial operating temperature range and switching frequency specifications.

Selection Notes

Select this component for applications requiring average current mode PFC control. Verify that the 115 kHz maximum switching frequency aligns with system requirements. Ensure the 16-SOIC package fits the PCB layout constraints. Check that the 10 V to 20 V supply range suits the design input conditions.

Part Context

This part belongs to the UC2854 family of high-power factor preregulators from Texas Instruments. It shares functional similarities with other variants like the UC2854BDWTR, differing primarily in packaging format and manufacturing compliance markings. The family is designed for efficient power factor correction in various power supply architectures.

Replacement Considerations

UC2854BDWTRG4 is a verified substitute offering identical electrical characteristics in a tape-and-reel package format.