UCC28632D

AC DC Converters, Offline Switchers Overview

The UCC28632D is an offline switcher controller from the UCC2863x family, designed for high-efficiency power supplies. It operates in a flyback topology with a switching frequency range of 200 Hz to 120 kHz and supports up to 30 W output power. The device features a maximum duty cycle of 70% and functions within a supply voltage window of 8 V to 20 V. It includes integrated protection mechanisms such as overvoltage, overcurrent, and overtemperature limits. The component is housed in a 7-SOIC package and is rated for junction temperatures between -40°C and +125°C.

AC DC Converters, Offline Switchers Feature Summary

• Supports Green Mode operation to enhance light-load efficiency
• Enables soft switching capabilities for reduced electromagnetic interference
• Integrates error amplifier and soft start functionality
• Provides comprehensive fault protection including overvoltage and overtemperature

AC DC Converters, Offline Switchers Applications

• Offline flyback power converters
• High-efficiency AC/DC adapters
• Industrial power supply designs

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix 'D' corresponds to the SOIC-7 package variant when ordering. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process. Ensure the supplier provides valid traceability documentation. Cross-reference the manufacturer part number against official distributor catalogs to avoid counterfeit components. Check for any recent product change notifications regarding material or assembly updates.

AC DC Converters, Offline Switchers Selection Notes

Select this controller for applications requiring high efficiency at light loads through Green Mode operation. It is suitable for flyback topologies where soft switching reduces stress on components. Consider the operating temperature range and package constraints during PCB layout. Evaluate the need for external gate drive strength if driving large MOSFETs. Verify that the input voltage range aligns with the system's AC line specifications.

AC DC Converters, Offline Switchers Part Context

The UCC28632D belongs to the UCC2863x series of resonant-mode power supply controllers by Texas Instruments. This family is engineered for high-performance offline applications, offering multi-topology support including flyback. The series emphasizes efficiency improvements via advanced control methods like Green Mode and soft switching, making it suitable for modern energy-efficient power conversion standards.

AC DC Converters, Offline Switchers Replacement Considerations

Compatible substitutes within the same family include UCC28630, UCC28631, and UCC28633. These parts share similar control architectures and feature sets but may differ in specific pin configurations or internal parameter tolerances. Verify functional equivalence before substitution.