UCC21540ADWR

Overview

The UCC21540ADWR is a reinforced isolation dual-channel gate driver from the UCC2154x family, designed to drive power MOSFETs, IGBTs, and GaN devices. It features up to 4 A/6 A peak source/sink current and 5.7 kVrms insulation voltage. Key electrical parameters include a maximum propagation delay of 45 ns, rise time of 5 ns, and fall time of 6 ns. The device operates within a temperature range of -40°C to +125°C with a maximum power dissipation of 950 mW. It is housed in a 16-pin SOIC package.

Feature Summary

• Provides galvanic isolation for driving high-side and low-side power switches
• Features programmable dead-time control to prevent shoot-through
• Offers robust noise immunity with integrated common-mode transient immunity

Applications

• Industrial motor drives
• Solar microinverters
• Switched-mode power supplies (SMPS)

Procurement Notes

Verify the specific suffix 'ADWR' corresponds to the tape-and-reel packaging format required for your assembly line. Confirm that the 16-SOIC footprint matches your PCB design guidelines. Ensure the component meets the necessary safety certification standards for your final application environment.

Selection Notes

Select this part when reinforced isolation and high peak current capability are required for wide-bandgap or traditional silicon power devices. Consider the 4A/6A output strength relative to the gate charge of the target transistor. Evaluate the thermal performance given the 950 mW power dissipation limit in the SOIC-16 package.

Part Context

This component belongs to the UCC2154x series of isolated gate drivers. It shares architectural similarities with other members like the UCC21520 and UCC21540-Q1, differing primarily in specific current ratings and qualification levels. The ADWR variant specifically denotes the automotive-grade or industrial-grade mass-production reel configuration.

Replacement Considerations

Direct substitutes may include UCC21520ADWR for lower current requirements or UCC21540-Q1ADWR if automotive qualification is mandatory. Verify pinout compatibility and isolation voltage ratings before swapping.