UCC21542DWR

Overview

The UCC21542DWR is a dual-channel current-isolated gate driver from Texas Instruments, designed for driving GaN FETs and IGBTs. It features reinforced isolation with a maximum working voltage of 5700 VRMS and operates within an extended temperature range of -40°C to +125°C. The device provides peak output currents of 4A source and 6A sink per channel. Key electrical parameters include a maximum propagation delay of 40 ns, a rise time of 5 ns, and a fall time of 6 ns. Power dissipation is rated at 1.775 W. It is housed in a 16-pin SOIC package.

Feature Summary

• Provides galvanic isolation between control circuitry and power devices using capacitive coupling technology.
• Supports high-speed switching applications with low propagation delay and fast rise/fall times.
• Features robust insulation capabilities suitable for demanding industrial and automotive environments.

Applications

• GaN FET gate driving
• IGBT gate driving
• Industrial motor drives
• Power factor correction circuits

Procurement Notes

Verify the specific suffix 'DWR' corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the component meets RoHS compliance standards as indicated by the manufacturer's documentation. Ensure the ordering part number matches the exact isolation voltage and channel configuration specified in the design requirements before finalizing procurement.

Selection Notes

Select this component when high-speed isolated driving of wide-bandgap semiconductors or IGBTs is required. The dual-channel architecture allows for independent control of high-side and low-side switches. Consider the thermal performance and package size constraints, as the SOIC-16 footprint must accommodate the necessary heat dissipation for the specified power levels in the target application.

Part Context

This part belongs to the UCC2154x family of isolated gate drivers from Texas Instruments. It shares architectural similarities with other members like the UCC21540, differing primarily in specific isolation ratings and drive strength configurations. The family is designed to address the growing demand for efficient power conversion in modern electronic systems.

Replacement Considerations

The UCC21540ADWR is a related dual-channel isolated gate driver within the same product family. Verify compatibility regarding isolation voltage specifications and pinout arrangements before substituting. Ensure that any alternative component meets the same thermal and electrical performance criteria defined for the original design.