UCC57108WDR

Overview

The UCC57108WDR is a low-side gate driver from Texas Instruments designed for high-power automotive applications. It features a single channel with 3A peak source and sink current, supporting IGBT and SiC devices. The device operates within a supply voltage range of 8.5V to 26V and handles input voltages down to -5V. Key electrical parameters include an 8ns rise time, 14ns fall time, and 50ns maximum propagation delay. It provides desaturation protection, UVLO, and thermal shutdown.

Feature Summary

• Integrated desaturation protection with programmable delay for fault detection
• Soft-shutdown capability to mitigate stress during fault conditions
• Robust input stage tolerant to negative voltage transients up to -5V
• Self-protected design incorporating thermal shutdown functionality

Applications

• HEV/EV PTC heaters
• Traction inverters
• Active discharge circuits
• Motor drives

Procurement Notes

Verify the specific suffix 'WDR' against the manufacturer's official documentation to confirm package type and tape-and-reel specifications. Ensure the component meets AEC-Q100 qualification requirements if intended for automotive use. Cross-reference the datasheet revision date to validate parameter accuracy before integration into designs.

Selection Notes

Select this component when a low-side driver with integrated desaturation protection is required for IGBT or SiC modules. The wide bias voltage range supports dual-polarity configurations. Consider the SOIC-8 package dimensions and thermal characteristics relative to the PCB layout constraints and ambient operating temperatures.

Part Context

This part belongs to the UCC5710x family of high-speed low-side gate drivers. It is engineered for demanding power electronics environments, offering precise timing and robust protection features. The family includes variants tailored for general industrial and automotive sectors, ensuring compatibility with various controller outputs.

Replacement Considerations

Consult the manufacturer's replacement guide for verified substitutes. Direct replacements must maintain identical pinout, drive current capabilities, and protection feature sets to ensure circuit compatibility without redesign.