UCC28C45QDRQ1

DC DC Switching Controllers Overview

The UCC28C45QDRQ1 is an automotive-grade, low-power current-mode PWM controller designed for boost, buck, buck-boost, flyback, and forward converter topologies. It features a maximum switching frequency of 1 MHz and supports up to 50% duty cycle. The device operates with a supply voltage range of 8.4 V to 18 V and delivers a peak output current of 200 mA. It is qualified under AEC-Q100 standards and functions within a junction temperature range of -40°C to +125°C.

DC DC Switching Controllers Feature Summary

• Enhanced BiCMOS technology providing pin-to-pin compatibility with industry-standard UC28C4x series controllers.
• Integrated control functions for fixed-frequency, peak current mode power supplies.
• Automotive qualification ensuring reliability in demanding vehicle environments.

DC DC Switching Controllers Applications

• Automotive power systems
• Hybrid electric vehicles (HEVs) and electric vehicles (EVs)
• Switched-mode power supplies (SMPS)
• DC-DC converters
• On-board power modules

DC DC Switching Controllers Procurement Notes

Verify the specific suffix 'QDRQ1' to confirm automotive grade and tape-and-reel packaging configuration. Ensure the design utilizes components compatible with the specified 8.4 V to 18 V operating range. Confirm that the thermal management strategy accommodates the -40°C to +125°C junction temperature limits defined in the datasheet specifications.

DC DC Switching Controllers Selection Notes

Select this component when designing isolated or non-isolated converters requiring high-frequency operation up to 1 MHz. It is suitable for applications needing robust automotive qualification and direct replacement for legacy UC28C4x designs without PCB layout modifications. Consider the 200 mA drive capability for standard gate driver requirements.

DC DC Switching Controllers Part Context

This part belongs to the UCC28C4x-Q1 family of enhanced BiCMOS current-mode PWM controllers. These devices are engineered to replace older UC28C4x series parts while offering improved performance characteristics. The family targets high-efficiency power conversion solutions in automotive and industrial sectors.

DC DC Switching Controllers Replacement Considerations

The UCC28C45QDRQ1 is explicitly documented as a pin-compatible enhancement to the UC28C4x series. Designers can migrate from UC28C4x parts using this component without altering the existing footprint or basic circuit topology.