UCC27614QDRQ1

Gate Driver Overview

The UCC27614QDRQ1 is an automotive-grade, single-channel low-side gate driver from Texas Instruments. It provides a peak output current of 10A for both sourcing and sinking. The device operates within a supply voltage range of 4.5V to 26V and supports inverting or non-inverting configurations. Key electrical parameters include a maximum propagation delay of 27ns, a rise time of 4.5ns, and a fall time of 4ns. It functions reliably across a temperature range of -40°C to +125°C and utilizes a SOIC-8 surface-mount package.

Gate Driver Feature Summary

• Delivers high-speed switching with 10A peak drive capability to reduce power switch transition times.
• Features independent enable pins allowing control of the power stage separate from main logic signals.
• Includes robust input protection capable of handling negative voltages up to -10V to mitigate ground bounce.
• Integrates active pull-down MOSFETs to maintain low output states during undervoltage lockout conditions.

Gate Driver Applications

• Automotive powertrain and motor control systems
• Solar power inverters and converters
• High-frequency telecommunications switch-mode power supplies
• Pulse transformer drivers

Gate Driver Procurement Notes

Verify that the specific ordering suffix matches the required package type and tape-and-reel specifications. Confirm AEC-Q100 qualification status is appropriate for the target automotive reliability grade. Ensure the design accounts for the thermal performance characteristics inherent to the SOIC-8 footprint under continuous load conditions.

Gate Driver Selection Notes

Select this component when a single-channel low-side configuration with high current drive is required for automotive environments. It is suitable for driving MOSFETs, IGBTs, SiC, and GaN devices where fast switching speeds are critical. Consider alternative packages if higher pin counts or different thermal dissipation requirements exist.

Gate Driver Part Context

This part belongs to the UCC27614 family of high-speed gate drivers designed for demanding power electronics applications. The Q1 suffix indicates compliance with automotive quality standards, distinguishing it from commercial variants. It serves as a bridge between low-voltage control logic and high-power switching elements.

Gate Driver Replacement Considerations

UCC27614QDGNRQ1: Alternative HVSSOP-8 package variant with identical electrical specifications.

Gate Driver FAQ

How does the UCC27614QDRQ1 handle ground bounce?

The input and enable pins can withstand negative voltages up to -10V, which helps mitigate system robustness issues caused by ground bounce during high-current switching events.

What happens if the supply voltage drops below the UVLO threshold?

An internal strong pull-down MOSFET actively forces the output to a low state, preventing partial turn-on of the power switch during insufficient bias conditions.