UC3854ADWG4

Overview

The UC3854ADWG4 is an enhanced 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 utilizes current-mode control with pulse width modulation technology. It is housed in a 16-pin SOIC package and functions reliably across an operating temperature range of 0 °C to 70 °C.

Feature Summary

• Implements current-mode control for precise regulation
• Provides zero-power detection capability
• Supports sinusoidal input shaping for power factor correction

Applications

• High power factor preregulator circuits
• Power factor correction (PFC) systems
• Advanced power factor correction control ICs

Procurement Notes

Verify the specific suffix 'G4' against official manufacturer documentation to confirm lead-free compliance status. Ensure the SOIC-16 package variant matches design requirements. Cross-reference the part number with the latest datasheet revision to validate all electrical parameters before integration.

Selection Notes

Select this component for applications requiring enhanced power factor preregulation capabilities. The 16-pin SOIC package facilitates surface-mount assembly. Confirm that the 115 kHz maximum switching frequency aligns with system constraints. Verify compatibility with current-mode control architectures.

Part Context

This component belongs to the UC3854 family of power factor controllers from Texas Instruments. It serves as an advanced solution for power factor correction, offering improved performance over standard variants. The device integrates essential features for efficient AC-to-DC conversion stages.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.