UCC21550CQDWKRQ1

Overview

The UCC21550CQDWKRQ1 is an automotive-grade, dual-channel capacitive coupled isolated gate driver manufactured by Texas Instruments. It operates within a wide temperature range of -40°C to +150°C and features a 5000 Vrms isolation rating. The device provides 4 A and 6 A output currents with programmable dead time control. It utilizes a 14-SOIC package and supports CMOS/TTL logic inputs.

Feature Summary

• Capacitive coupling technology for high-speed signal transmission
• Programmable dead-time insertion for bridge protection
• Automotive qualification ensuring reliability in harsh environments

Applications

• Automotive powertrain systems
• Motor drive inverters
• Isolated DC-DC converter stages

Procurement Notes

Verify the specific suffix 'CQ' indicates automotive grade and SOIC-14 packaging. Confirm datasheet alignment for the Q1 designation. Ensure ESD handling protocols are followed due to moisture sensitivity classification. Validate supply chain authenticity through authorized channels.

Selection Notes

Select this component when high-frequency switching with precise dead-time control is required in automotive applications. The wide operating temperature range suits under-hood environments. Capacitive isolation offers superior common-mode transient immunity compared to optical alternatives.

Part Context

This part belongs to the UCC21550 family of dual-channel isolated gate drivers. It shares architectural similarities with other TI isolators but is specifically optimized for automotive reliability standards. The SOIC-14 form factor allows for compact PCB layouts in dense power modules.

Replacement Considerations

Direct substitutes include UCC21550QDWKRQ1 or UCC21550ADWKRQ1 if pinout compatibility is maintained. Verify isolation voltage ratings and current drive capabilities match system requirements before substitution.