UC3854DWG4

Overview

The UC3854DWG4 is a high-power factor preregulator integrated circuit manufactured by Texas Instruments. It operates within a supply voltage range of 10 V to 20 V and supports switching frequencies up to 200 kHz. The device is housed in a 16-pin SOIC package with an operating temperature range from 0°C to +70°C. It utilizes current-mode control for power factor correction applications.

Feature Summary

• Implements current-mode control architecture for power factor correction
• Includes internal zero-power detection capability
• Designed as an enhanced high power factor preregulator

Applications

• Power factor correction pre-regulators
• High power factor AC-DC conversion systems

Procurement Notes

Verify the suffix G4 indicates compliance with specific environmental standards such as RoHS. Confirm the package type matches the design requirements, specifically the 16-SOIC form factor. Ensure the operating temperature range meets the application's thermal constraints.

Selection Notes

Select this component for designs requiring a dedicated power factor correction controller. Compare against non-G4 variants if environmental certification is mandatory. Verify that the 200 kHz frequency capability aligns with the system's electromagnetic interference requirements.

Part Context

This part belongs to the UC3854 series of power management ICs. It is functionally related to the UC3854BDW and UC3854ADWTR models, sharing similar core functionalities but potentially differing in packaging or environmental compliance specifications.

Replacement Considerations

UC3854BDW is a documented alternative within the same product family.