UC3854ADWTRG4

Overview

The UC3854ADWTRG4 is an enhanced high power factor preregulator integrated circuit manufactured by Texas Instruments. It operates within a supply voltage range of 10 V to 20 V and features a switching frequency of 200 kHz. The device utilizes current-mode control with pulse width modulation technology. It is housed in a 16-pin SOIC package and supports surface-mount installation. The operational temperature range extends from 0 °C to +70 °C, ensuring reliability in standard industrial environments.

Feature Summary

• Implements average current mode control for precise power factor correction
• Integrates zero-power detection capabilities for improved efficiency at light loads
• Provides sinusoidal input current shaping through advanced control algorithms

Applications

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

Procurement Notes

Verify the component authenticity against official Texas Instruments documentation. Confirm the specific suffix indicates RoHS compliance and lead-free status as per manufacturer standards. Ensure the ordering information matches the exact package type and temperature grade required for your design specifications before finalizing procurement.

Selection Notes

Select this component when designing systems requiring enhanced power factor correction with current-mode control. It is suitable for applications needing a 200 kHz switching frequency and operation within a 10 V to 20 V supply range. Consider the 16-SOIC package for surface-mount assembly requirements and ensure the commercial temperature range meets environmental constraints.

Part Context

This part belongs to the UC3854 family of high power factor preregulators from Texas Instruments. It serves as an advanced solution for power factor correction, offering improved performance over earlier iterations. The device is designed to provide efficient power conversion with low harmonic distortion, making it a key component in modern power management IC portfolios.

Replacement Considerations

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