UCC2888D

AC DC Converters, Offline Switchers Overview

The UCC2888D is an off-line power supply controller manufactured by Texas Instruments, designed for flyback topology applications. It operates as a high-performance voltage-mode switching controller optimized for low current consumption. The device supports input voltages ranging from 36 V to 450 V and provides output voltages between 5 V and 60 V. It features a fixed switch frequency of 62 kHz with a maximum duty cycle of 55%. The controller delivers an output current of 225 mA and maintains a quiescent current of 86 uA. It functions within a temperature range of -40°C to +125°C and is housed in an 8-SOIC package.

AC DC Converters, Offline Switchers Feature Summary

• Voltage-mode switching control architecture for off-line power supplies
• Low quiescent current operation for enhanced efficiency
• Integrated soft-start capability to limit inrush current
• Non-isolated design suitable for specific converter topologies

AC DC Converters, Offline Switchers Applications

• Off-line AC-DC converters
• Flyback power supply designs
• General purpose offline switching controllers

AC DC Converters, Offline Switchers Procurement Notes

Verify the component status carefully, as multiple sources indicate the UCC2888D may be obsolete or have limited availability. Confirm the exact package variant (SOIC-8) and ensure compatibility with existing board layouts. Check for RoHS compliance details as documentation varies across distributors. Validate that the non-isolated nature aligns with your system safety requirements before procurement.

AC DC Converters, Offline Switchers Selection Notes

Select this component for applications requiring a dedicated voltage-mode controller with low standby power consumption. Ensure the design accommodates the 62 kHz fixed frequency and 55% maximum duty cycle constraints. Verify that the input voltage range up to 450 V matches the rectified line voltage. Consider the 8-SOIC package dimensions for thermal management and PCB space allocation.

AC DC Converters, Offline Switchers Part Context

The UCC2888D belongs to the family of off-line power supply controllers from Texas Instruments. It is distinct from the UCC28881 series, which offers adjustable frequency and different pin configurations. While related in function, the UCC2888D is specifically characterized by its fixed 62 kHz frequency and voltage-mode control scheme, targeting cost-sensitive flyback applications.

AC DC Converters, Offline Switchers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Designers should consult official Texas Instruments documentation for potential cross-references or updated alternatives, as the UCC2888D is listed as obsolete in some databases.