UCC28512DWG4

Overview

The UCC28512DWG4 is an advanced power factor correction and PWM combination controller manufactured by Texas Instruments. It integrates average current mode control for the PFC stage and voltage mode control for the PWM stage within a single package. The device supports continuous conduction mode (CCM) operation and operates with a switching frequency of 200 kHz. It is housed in a 20-pin SOIC package and functions within an operating temperature range of -40°C to +105°C.

Feature Summary

• Integrates average current mode PFC controller and voltage mode PWM controller
• Supports continuous conduction mode (CCM) operation
• Provides comprehensive protection features including overvoltage, undervoltage, and thermal shutdown

Applications

• High-efficiency power supplies
• Server and storage power systems
• Telecommunications equipment

Procurement Notes

Verify the specific suffix G4 indicates lead-free compliance and RoHS adherence as per manufacturer specifications. Confirm the 20-SOIC package dimensions match your PCB footprint requirements. Ensure the operating temperature range meets your environmental design constraints. Cross-reference the datasheet revision date to ensure compatibility with your system design parameters.

Selection Notes

Select this component when a combined PFC and PWM solution is required to reduce board space and component count. It is suitable for applications demanding high power factor and low total harmonic distortion. Consider the 200 kHz switching frequency for balancing efficiency and EMI performance. Evaluate the thermal management needs given the integrated nature of the dual controllers.

Part Context

This part belongs to the UCC28512 series of advanced PFC/PWM combination controllers from Texas Instruments. These devices are designed to simplify the design of high-performance power supplies by integrating two critical control loops into one IC. The DWG4 variant specifies the tube packaging and lead-free construction.

Replacement Considerations

Direct replacements may include other Texas Instruments PFC/PWM combo controllers such as the UCC28180 or UCC28181, provided pinouts and electrical characteristics are compatible. Verify functional equivalence before substitution.