UCC3819APWR

Overview

The UCC3819APWR is a BiCMOS power factor preregulator controller from Texas Instruments, designed for high-efficiency AC-DC conversion. It operates within a supply voltage range of 10.8V to 17V and supports a switching frequency of 250 kHz. The device is housed in a 16-pin TSSOP package suitable for surface mount technology. It functions across an industrial temperature range from -40°C to +85°C with a quiescent current of 150 µA. This component integrates advanced control features to optimize power factor correction performance in universal input applications.

Feature Summary

• BiCMOS technology implementation for enhanced power factor correction efficiency
• Integrated average current mode control architecture
• Designed for universal AC line voltage operation

Applications

• Universal input AC-DC power supplies
• Power factor correction stages in consumer electronics
• Industrial power management systems

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix 'PWR' indicates the tape-and-reel packaging variant. Check for moisture sensitivity level requirements during storage and handling. Ensure compatibility with existing PCB footprints for the 16-TSSOP package. Validate that the design accounts for the discontinued status if applicable.

Selection Notes

Select this component for designs requiring integrated PFC control in a compact surface-mount form factor. Consider the 250 kHz switching frequency for balancing EMI and component size. Evaluate the 10.8V to 17V supply range against the system's auxiliary power capabilities. Assess thermal management needs for the TSSOP-16 package under maximum load conditions.

Part Context

This part belongs to the UCC3819 family of power factor correction controllers. It serves as a specialized IC for improving the efficiency of power conversion stages. The device complements other Texas Instruments PMIC solutions by addressing harmonic distortion and power quality standards in modern electronic equipment.

Replacement Considerations

Public sources indicate this product is obsolete or no longer manufactured. Verify alternative packages or updated series revisions from Texas Instruments. Cross-reference pinouts and electrical characteristics with potential successor components before integration.