UCC256402ADDBT

Power Supply Controllers, Monitors Overview

The UCC256402ADDBT is an LLC resonant controller from Texas Instruments, designed for high-efficiency power conversion. It features a half-bridge topology with integrated gate drivers capable of sourcing and sinking 0.6 A. The device operates within a supply voltage range of 13 V to 26 V and supports a maximum duty cycle of 50%. It includes programmable soft start, thermal shutdown, and zero-voltage switching control methods. The component functions reliably across an operating temperature range of -40°C to +125°C.

Power Supply Controllers, Monitors Feature Summary

• Integrated high-voltage startup circuitry enabling operation from high bus voltages
• Ultra-low standby power consumption for efficient light-load performance
• Built-in zero-voltage switching (ZVS) control to minimize switching losses
• Programmable soft-start mechanism to limit inrush current during startup

Power Supply Controllers, Monitors Applications

• High-density server power supplies
• Telecommunications DC/DC converters
• Industrial power management systems
• Adapters and chargers requiring high efficiency

Power Supply Controllers, Monitors Procurement Notes

Verify the specific suffix 'A' against the manufacturer's official documentation to confirm the exact electrical characteristics and pinout configuration. Ensure that the SOIC-14 package dimensions match the target PCB footprint requirements. Confirm RoHS compliance status through the latest datasheet revision notes before finalizing procurement specifications.

Power Supply Controllers, Monitors Selection Notes

Select this component for applications demanding ultra-low standby power and high-voltage startup capabilities. The integrated gate driver simplifies design by reducing external component count. Consider the thermal performance limits when designing for the upper end of the specified temperature range. Evaluate the need for programmable soft-start timing based on system inrush constraints.

Power Supply Controllers, Monitors Part Context

This part belongs to the UCC25640x family of LLC resonant controllers. It shares architectural similarities with variants like the UCC256402DDBT and UCC256403, differing primarily in specific electrical ratings or packaging options. The family targets modern power supplies requiring strict efficiency standards and compact form factors.

Power Supply Controllers, Monitors Replacement Considerations

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