UCC28C59QDRQ1

DC DC Switching Controllers Overview

The UCC28C59QDRQ1 is an automotive-grade, low-power current-mode PWM controller designed for silicon carbide (SiC) applications. It operates with a 30-V input and supports Boost, Buck, Flyback, and SEPIC topologies. The device features a fixed 110 kHz switching frequency and a maximum duty cycle of 50%. It provides three outputs with rail-to-rail drive capability, delivering up to 4 A output current. The UVLO thresholds are set at 16 V and 12.5 V. Operating temperatures range from -40°C to +125°C in an SOIC-8 package.

DC DC Switching Controllers Feature Summary

• Optimized for precise control in SiC-based power conversion systems
• Integrated high-current rail-to-rail driver outputs for efficient gate driving
• Fixed switching frequency simplifies external component selection and EMI filtering

DC DC Switching Controllers Applications

• Automotive DC-DC converters utilizing Silicon Carbide semiconductors
• Industrial power supplies requiring isolated or non-isolated topologies
• High-efficiency battery management system charging circuits

DC DC Switching Controllers Procurement Notes

Verify the Q1 suffix indicates AEC-Q100 qualification for automotive reliability standards. Confirm the DRQ1 suffix corresponds to the SOIC-8 package and tape-and-reel shipping format. Ensure design compatibility with the specified 16 V/12.5 V UVLO thresholds for your specific supply voltage profile. Cross-reference the datasheet revision date to ensure alignment with latest thermal and electrical specifications.

DC DC Switching Controllers Selection Notes

Select this component when designing for SiC MOSFETs due to its tailored drive characteristics. The 110 kHz frequency offers a balance between size and efficiency for mid-power applications. Consider the 50% duty cycle limit when selecting transformer turns ratios for flyback designs. The low quiescent current makes it suitable for always-on automotive loads where standby power consumption is critical.

DC DC Switching Controllers Part Context

Part of the UCC28C5x family of low-power current-mode controllers. This variant is specifically qualified for automotive environments, distinguishing it from the commercial UCC28C59DR. It shares architectural similarities with other members but differs in operating temperature range and qualification standards.

DC DC Switching Controllers Replacement Considerations

UCC28C59DR is the commercial equivalent without automotive qualification. UCC28C58QDRQ1 is a related automotive part but supports only Buck and Flyback topologies with different pinout and performance characteristics.