UCC28C57HDR

DC DC Switching Controllers Overview

The UCC28C57HDR is an industrial-grade, low-power current-mode PWM controller from Texas Instruments. It supports Boost, Buck, Buck-Boost, Flyback, and Forward topologies with a fixed switching frequency of 1 MHz. The device operates within a supply voltage range of 12 V to 28 V and features undervoltage lockout thresholds of 18.8 V (start) and 15.5 V (stop). It provides a maximum duty cycle of 50% and delivers up to 1 A output current. Operating temperatures span from -40°C to +125°C in an SOIC-8 package.

DC DC Switching Controllers Feature Summary

• Supports multiple converter topologies including Boost, Buck, Buck-Boost, Flyback, and Forward
• Optimized for Silicon Carbide applications with specific UVLO thresholds
• Low quiescent current design for energy-efficient operation
• Current-mode control architecture for stable performance

DC DC Switching Controllers Applications

• Industrial power supplies
• Silicon Carbide gate drive circuits
• Buck-Boost converters
• Flyback transformer isolation stages

DC DC Switching Controllers Procurement Notes

Verify the suffix 'HDR' confirms the SOIC-8 package and tape-and-reel delivery format. Confirm the component meets industrial temperature ratings (-40°C to +125°C). Ensure compatibility with 30-V systems. Check RoHS compliance status via official documentation before integration.

DC DC Switching Controllers Selection Notes

Select this controller for designs requiring high-frequency operation at 1 MHz with moderate output current capabilities. It is suitable for applications needing support for various isolated and non-isolated topologies. Consider the 50% duty cycle limit when designing boost or flyback configurations. Evaluate thermal management requirements for the SOIC-8 package under continuous load conditions.

DC DC Switching Controllers Part Context

This component belongs to the UCC28C5x series of low-power current-mode PWM controllers. It shares architectural similarities with other members like the UCC28C56 and UCC28C58 but differs in specific UVLO settings and package options. The series targets industrial applications requiring efficient power conversion with minimal standby power consumption.

DC DC Switching Controllers Replacement Considerations

Direct substitutes include UCC28C57H (tube packaging) or UCC28C57DR (standard SOIC-8). Verify pin compatibility and electrical specifications against the original datasheet before substitution.