UCC256402ADDBR

Power Supply Controllers, Monitors Overview

The UCC256402ADDBR is a half-bridge LLC resonant controller from Texas Instruments, designed for high-efficiency power conversion. It features integrated high-voltage gate drivers and supports zero voltage switching to minimize switching losses. The device operates within a supply voltage range of 13V to 26V and handles input voltages up to 600V. It utilizes current-mode frequency control with a minimum switching frequency of 35 kHz and a maximum duty cycle of 50%. Packaged in a 14-SOIC format, it ensures reliable performance across an operating temperature range of -40°C to 125°C.

Power Supply Controllers, Monitors Feature Summary

• Integrated high-voltage gate drivers simplify circuit design by eliminating external driver components.
• Supports zero voltage switching (ZVS) control method to enhance converter efficiency and reduce electromagnetic interference.
• Includes programmable soft start functionality to manage inrush currents during startup sequences.

Power Supply Controllers, Monitors Applications

• Resonant converter controllers
• High-efficiency AC-DC power supplies
• Isolated DC/DC converters

Power Supply Controllers, Monitors Procurement Notes

Verify the specific suffix 'A' against official documentation to confirm any distinct manufacturing or quality grading differences compared to standard variants. Ensure compatibility with the 14-SOIC package dimensions and moisture sensitivity level requirements during storage and assembly processes.

Power Supply Controllers, Monitors Selection Notes

Select this component for applications requiring integrated high-voltage driving capabilities within an LLC topology. Consider its wide input voltage tolerance and thermal robustness when designing systems that demand stable operation under varying load conditions and environmental temperatures.

Power Supply Controllers, Monitors Part Context

This part belongs to the UCC25640x series of LLC resonant controllers. It shares core architectural features with siblings like the UCC256402DDBT but may differ in specific qualification grades or packaging configurations as indicated by the alphanumeric suffixes.

Power Supply Controllers, Monitors Replacement Considerations

UCC256402DDBT