UCC28521DWR

Overview

The UCC28521DWR is a power factor correction controller from Texas Instruments, designed for continuous conduction mode (CCM) operation. It features an adjustable switching frequency and operates within a supply voltage range of 11.2V to 21V. The device supports a maximum power dissipation of 1.05 W and draws a working supply current of 20 mA. It is housed in a 20-SOIC package with a width of 7.50 mm. The component functions reliably across a temperature range from -40°C to +125°C.

Feature Summary

• Supports two-phase interleaved CCM PFC control architecture
• Features adjustable switching frequency capability
• Designed for surface mount installation in SOIC-20 packages

Applications

• Power factor correction circuits
• Telecom point of load solutions

Procurement Notes

Verify the specific suffix 'DWR' corresponds to the tape-and-reel packaging format when ordering. Confirm that the required operating temperature range aligns with the specified -40°C to +125°C limits. Ensure the design accommodates the 20-SOIC footprint dimensions. Check for any recent product change notices regarding assembly sites or material composition updates.

Selection Notes

Select this component for applications requiring two-phase interleaved PFC control. Ensure the system design supports the 11.2V to 21V supply voltage range. Verify compatibility with the 20-SOIC package constraints. Consider the thermal management requirements given the 1.05 W power dissipation limit. Confirm the need for adjustable switching frequency functionality.

Part Context

This part belongs to the UCC28521 series of power management ICs. It is categorized under PMIC - Power Management ICs and specifically PFC Controllers. The manufacturer is Texas Instruments. The device is RoHS compliant and falls under ECCN EAR99 classification.

Replacement Considerations

No publicly confirmed substitute part numbers are available in the provided documentation.