UCC256404ADDBT

Power Supply Controllers, Monitors Overview

The UCC256404ADDBT is an LLC resonant controller from Texas Instruments designed for high-efficiency power conversion. It features ultra-low power consumption and ultra-quiet standby operation, making it suitable for stringent energy efficiency standards. The device incorporates a high-voltage startup circuit and integrated X-capacitor discharge functionality. It supports half-bridge and resonant LLC topologies with current-mode control. Operating within a temperature range of -40°C to 125°C, it utilizes a 14-SOIC package.

Power Supply Controllers, Monitors Feature Summary

• Ultra-low power and ultra-quiet standby operation for enhanced efficiency
• Integrated high-voltage startup circuit for reliable initialization
• Built-in X-capacitor discharge mechanism for safety compliance
• Supports Zero Voltage Switching (ZVS) for reduced switching losses

Power Supply Controllers, Monitors Applications

• LLC resonant converter designs
• Half-bridge power supply architectures
• High-efficiency offline DC/DC converters
• Adapters requiring low standby power

Power Supply Controllers, Monitors Procurement Notes

Verify the specific suffix 'ADDBT' against official Texas Instruments documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with design requirements for operating temperature and voltage ratings. Cross-reference datasheet revisions to confirm pinout and electrical characteristics match the intended application before procurement.

Power Supply Controllers, Monitors Selection Notes

Select this component for applications demanding high efficiency in LLC resonant topologies. Consider its integrated features such as high-voltage startup and X-cap discharge when designing compact power supplies. Evaluate thermal performance within the specified -40°C to 125°C range. Compare with other UCC2564xx variants if different feature sets are required.

Power Supply Controllers, Monitors Part Context

The UCC256404 belongs to the UCC2564x family of LLC resonant controllers by Texas Instruments. This family focuses on optimizing light-load efficiency and reducing standby power consumption. These controllers are engineered for modern power adapters and chargers that must meet global energy efficiency regulations.

Power Supply Controllers, Monitors Replacement Considerations

Consult the UCC256402 or UCC256403 datasheets for potential functional substitutes within the same family. Verify pin-to-pin compatibility and electrical parameter alignment before considering alternative part numbers.