UCC21750QDWRQ1

Overview

The UCC21750QDWRQ1 is a single-channel automotive isolated gate driver designed for silicon carbide (SiC) and IGBT power devices. It features a 5.7kVrms isolation rating and provides ±10A peak source/sink current. The device integrates desaturation detection and an internal Miller clamp to enhance system reliability. It operates with a supply voltage range of 3V to 33V on the output side and supports propagation delays up to 130ns. The component is housed in a SOIC-16 package and functions within a temperature range of -40°C to +125°C.

Feature Summary

• Integrates desaturation fault detection for robust protection of high-power switching devices
• Includes an internal Miller clamp circuit to prevent false turn-on during high dv/dt events
• Provides galvanic isolation suitable for demanding automotive power electronics environments

Applications

• Automotive traction inverters utilizing SiC MOSFETs or IGBTs
• On-board chargers (OBC) for electric vehicles
• DC-DC converters in automotive power distribution systems

Procurement Notes

Verify the Q1 suffix confirms AEC-Q100 qualification status for the specific lot. Confirm the DWR suffix indicates tape-and-reel packaging compatible with automated assembly lines. Ensure the manufacturer designation matches Texas Instruments to avoid counterfeit components. Check for recent lifecycle notices as availability may be subject to change.

Selection Notes

Select this component when high-voltage isolation and integrated fault protection are required for SiC or IGBT modules. The built-in Miller clamp reduces external component count compared to drivers lacking this feature. Verify that the ±10A drive strength meets the gate charge requirements of the target power switch. Ensure the control logic voltage levels are compatible with the input section specifications.

Part Context

This part belongs to the UCC21750 family of isolated gate drivers from Texas Instruments. It shares architectural similarities with non-automotive variants but includes enhanced reliability features and qualification standards required for automotive use. The family focuses on simplifying design for wide-bandgap semiconductors through integrated protection mechanisms.

Replacement Considerations

UCC21750DW is the non-automotive equivalent without Q1 qualification. UCC21750QDW is the tube-packaged variant of the automotive version. Cross-reference pinouts and electrical characteristics before substitution.