UCC57108WQDRQ1

Overview

The UCC57108WQDRQ1 is an automotive-grade, low-side gate driver from the UCC5710x-Q1 series, designed for high-power applications such as traction inverters and PTC heaters. It features a single channel with 3A peak source and sink current capability. The device operates within a bias voltage range of 8.5V to 26V and supports input voltages up to -5V for robustness against ground bounce. Key electrical parameters include a maximum propagation delay of 50ns, rise time of 8ns, and fall time of 14ns. It integrates desaturation protection with programmable delay, under-voltage lockout (UVLO), and thermal shutdown. The component is housed in a SOIC-8 package and functions across a junction temperature range of -40°C to +150°C.

Feature Summary

• Integrates desaturation detection with programmable delay and soft-shutdown fault response
• Provides 3A peak drive strength for efficient switching of IGBTs and SiC devices
• Supports negative input voltage tolerance up to -5V for system robustness
• Includes comprehensive protection mechanisms such as UVLO and thermal shutdown

Applications

• Traction inverters in electric vehicles
• PTC heaters for HVAC systems
• Active discharge circuits
• Motor drives

Procurement Notes

Verify that the specific suffix 'WQDRQ1' corresponds to the intended tape-and-reel packaging and automotive qualification status. Confirm the device meets AEC-Q100 Grade 1 requirements for the target operating temperature range. Ensure the design accounts for the SOIC-8 thermal dissipation capabilities given the 150°C maximum junction temperature rating. Cross-reference the latest datasheet revision to confirm pinout compatibility with existing layouts.

Selection Notes

Select this component when a single-channel low-side driver with integrated desaturation protection is required for automotive power stages. It is suitable for driving IGBT or SiC MOSFETs where moderate drive current and fast switching speeds are necessary. Consider this part over non-automotive variants if AEC-Q100 certification and extended temperature operation are mandatory. Evaluate the trade-off between the 3A drive strength and the available PCB space in the SOIC-8 package.

Part Context

This device belongs to the UCC5710x-Q1 family of high-speed low-side gate drivers from Texas Instruments. The family shares common architectural features but varies in pin configurations and specific protection integrations. The UCC57108 variant specifically includes desaturation protection, distinguishing it from basic drivers like the UCC57102. These drivers are engineered for reliability in harsh automotive environments, offering flexibility in control logic interfacing and bias supply ranges.

Replacement Considerations

UCC57108BDRQ1: Non-automotive grade equivalent with similar electrical characteristics. UCC57102WQDRQ1: Automotive grade alternative lacking desaturation protection.