UC3854QTR

Overview

The UC3854QTR is a high power-factor preregulator integrated circuit manufactured by Texas Instruments. It operates within an operating temperature range of 0°C to 70°C and supports a maximum operating supply voltage of 30 V. The component is housed in a 20-PLCC package with J-Lead configuration, specifically identified as a 20-LCC (J-Lead) case type. This device belongs to the Power Factor Correction (PFC) category of power management devices.

Feature Summary

• Integrated power factor correction functionality for high efficiency
• Designed for high power-factor preregulator applications
• Compatible with standard PLCC surface-mount packaging

Applications

• High power-factor preregulator circuits
• Power factor correction systems
• Power management IC implementations

Procurement Notes

Verify the specific package variant, as sources indicate both 16-pin and 20-pin configurations for the UC3854 family. Confirm the suffix 'QTR' corresponds to the 20-PLCC J-Lead package rather than standard SOIC or PDIP options. Check product status, as some UC3854 variants are marked obsolete. Ensure the supplier provides valid traceability for this specific part number.

Selection Notes

Select this component when a 20-lead PLCC package is required for power factor correction designs. Note that other UC3854 variants utilize different packages such as SOIC or PDIP. Verify thermal requirements against the 0°C to 70°C operating range. Confirm compatibility with the 30 V maximum supply voltage limit for the target application.

Part Context

The UC3854 series comprises high power-factor preregulators from Texas Instruments. While many variants use 16-pin packages like PDIP or SOIC, the UC3854QTR is distinctively associated with a 20-lead PLCC package in available documentation. It serves as a specialized option within the broader PFC controller family.

Replacement Considerations

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