UCC21550BDWR

Overview

The UCC21550BDWR is an isolated dual-channel gate driver from Texas Instruments, featuring programmable dead time and a wide operating temperature range of -40°C to +150°C. It provides a peak source current of 4A and a peak sink current of 6A. The device utilizes capacitive coupling for isolation with a 5000Vrms rating. Key electrical parameters include a maximum propagation delay of 45ns, rise time of 8ns, and fall time of 8ns. It is housed in a 16-SOIC package.

Feature Summary

• Dual-channel isolated gate driver architecture with programmable dead time control
• High-current output capability with 4A peak source and 6A peak sink drive strength
• Robust isolation using capacitive coupling technology rated at 5000Vrms
• Extended thermal performance supporting operation up to 150°C

Applications

• Industrial motor drives requiring precise phase control
• Inverter systems in renewable energy applications
• High-frequency power conversion circuits
• Isolated gate driving for IGBTs and MOSFETs in harsh environments

Procurement Notes

Verify the specific suffix BDWR indicates the tape-and-reel packaging format and 16-SOIC body style. Confirm that the 5000Vrms isolation rating aligns with your system safety requirements. Ensure compatibility with the target switching frequency given the 45ns propagation delay specification. Check for any specific ESD handling precautions during assembly.

Selection Notes

Select this component when high channel-to-channel isolation voltage is required alongside independent dead-time programming. The 4A/6A drive current suits medium-power devices. Consider the 16-SOIC footprint for PCB layout constraints. Evaluate the -40°C to 150°C range against ambient conditions. Compare propagation delay characteristics if signal timing precision is critical for the application.

Part Context

This part belongs to the UCC21550 family of isolated gate drivers. It shares core specifications with variants like UCC21550ADWKR but differs in package type and isolation rating. The family emphasizes programmability and ruggedness for industrial use. It complements other TI isolators by offering integrated dead-time control within the driver stage.

Replacement Considerations

Direct substitutes may include other UCC21550 series variants with compatible pinouts. Verify equivalent isolation ratings and drive currents before substitution. Cross-reference package dimensions to ensure mechanical fit. Confirm functional equivalence regarding programmable dead-time settings.