UC2854BMDWREP

Overview

The UC2854BMDWREP is an enhanced product advanced high-power factor preregulator manufactured by Texas Instruments. It operates within a supply voltage range of 10 V to 20 V, with a nominal input of 18 V. The device supports a switching frequency of 115 kHz and draws a typical operating supply current of 300 µA. It is housed in a 16-pin SOIC package and is rated for an extended industrial temperature range from -55 °C to +125 °C.

Feature Summary

• Implements current-mode control with pulse width modulation for precise power factor correction.
• Features integrated zero-power detection capabilities to enhance efficiency at light loads.
• Designed as an advanced high-power factor preregulator for robust performance.

Applications

• High-power factor preregulator circuits
• Power factor correction (PFC) systems
• Industrial power management applications

Procurement Notes

Verify the specific suffix 'REPG4' or 'REP' against the manufacturer's official documentation to confirm lead times and environmental compliance status. Ensure the ordering part number matches the exact package variant required for your design. Cross-reference the datasheet revision history for any updates to electrical characteristics or recommended operating conditions before finalizing procurement.

Selection Notes

Select this component when an extended temperature range down to -55 °C is required, distinguishing it from commercial variants limited to -40 °C. The 115 kHz switching frequency offers a balance between component size and efficiency. Verify that the 16-SOIC package dimensions fit the PCB layout constraints and that the 300 µA supply current aligns with system power budget requirements.

Part Context

This part belongs to the UC2854 series of power factor controllers. It represents the military-grade or enhanced reliability version of the standard UC2854, offering wider thermal tolerance. It serves as a specialized solution for demanding environments where standard commercial grade components may not suffice.

Replacement Considerations

The UC2854BMDWREPG4 is a confirmed equivalent part number. Other UC2854 variants may differ in temperature range or package type; verify compatibility carefully.