UCC28C43QDRQ1

DC DC Switching Controllers Overview

The UCC28C43QDRQ1 is an automotive-grade, low-power current-mode PWM controller manufactured by Texas Instruments. It supports Boost, Buck, Buck-Boost, Flyback, and Forward topologies within a single SOIC-8 package. The device operates with a fixed switching frequency of 1 MHz and delivers up to 1 A output current at a maximum voltage of 18 V. It features a maximum duty cycle of 100% and maintains operation across a temperature range of -40°C to +125°C. Qualified under AEC-Q100 standards, it ensures reliability for demanding automotive power management applications.

DC DC Switching Controllers Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for robust performance in vehicle environments.
• Current-mode control architecture providing stable regulation across diverse converter topologies.
• Integrated high-current driver capable of sourcing 1 A to efficiently drive external power switches.

DC DC Switching Controllers Applications

• Automotive DC-DC converters
• On-board charger systems
• Power supply modules for infotainment units

DC DC Switching Controllers Procurement Notes

Verify the specific suffix 'QDRQ1' matches the required automotive grade and tape-and-reel packaging configuration. Confirm that the SOIC-8 footprint aligns with the target PCB design. Ensure the component meets the necessary AEC-Q100 reliability requirements for the intended automotive application environment.

DC DC Switching Controllers Selection Notes

Select this controller when designing automotive power stages requiring a 1 MHz switching frequency and high peak drive current. It is suitable for isolated and non-isolated topologies including flyback and forward configurations. Consider its wide operating temperature range and low quiescent current for efficient thermal management in compact automotive enclosures.

DC DC Switching Controllers Part Context

This component belongs to the UCC28C43 series of low-power current-mode PWM controllers. It is part of Texas Instruments' portfolio of PMIC solutions designed for industrial and automotive markets. The device complements other family members by offering specific voltage and current ratings optimized for standard automotive bus architectures.

DC DC Switching Controllers Replacement Considerations

Check for direct substitutes within the UCC28C43 family or compatible TI current-mode controllers. Verify pinout compatibility and electrical parameter alignment before substituting with non-TI alternatives.