UCC2800QDRQ1

Power Supply Controllers, Monitors Overview

The UCC2800QDRQ1 is an automotive-grade, low-power current-mode PWM controller manufactured by Texas Instruments. Designed for high-frequency switching applications, it supports multiple topologies including Boost, Buck, Buck-Boost, Flyback, and Forward converters. The device operates with a fixed 1 MHz switching frequency and delivers up to 1 A output drive current. It functions within a supply voltage range of up to 18 V and maintains reliable operation across an extended temperature range from -40°C to +125°C. Packaged in an 8-pin SOIC (D) case, it meets AEC-Q100 qualification standards for automotive electronics.

Power Supply Controllers, Monitors Feature Summary

• Automotive-grade reliability compliant with AEC-Q100 standards
• Current-mode control architecture for enhanced transient response
• Supports versatile converter topologies including isolated and non-isolated designs
• High switching frequency capability reduces external component size

Power Supply Controllers, Monitors Applications

• Automotive power distribution systems
• DC-DC conversion modules for vehicle electronics
• Battery management system interfaces
• Isolated gate driver supplies in automotive environments

Power Supply Controllers, Monitors Procurement Notes

Verify the specific suffix and tape-and-reel specifications against the official datasheet before ordering. Confirm that the AEC-Q100 grade matches the target automotive application requirements. Ensure the SOIC-8 package dimensions align with the PCB footprint design. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components.

Power Supply Controllers, Monitors Selection Notes

Select this controller when designing automotive DC-DC converters requiring high efficiency and compact magnetic components due to the 1 MHz operating frequency. It is suitable for applications needing robust current-mode control without the complexity of voltage-mode loops. Consider the 18 V maximum supply limit and 1 A drive capability when sizing external MOSFETs and transformers for the intended topology.

Power Supply Controllers, Monitors Part Context

This component belongs to the UCC280x-Q1 family of low-power BiCMOS current-mode PWM controllers. These devices are engineered specifically for automotive environments, offering a balance of performance and power consumption. The family includes variants like the UCC2803-Q1 and UCC28C44-Q1, sharing similar control architectures but differing in features such as shutdown pins or specific timing characteristics.

Power Supply Controllers, Monitors Replacement Considerations

Direct substitutes include UCC2803QDRQ1 and UCC28C44QDRQ1. Verify pin compatibility and specific feature differences such as shutdown functionality or exact duty cycle limits before swapping.