UCC28C54DR

DC DC Switching Controllers Overview

The UCC28C54DR is a low-power current-mode PWM controller from Texas Instruments, designed for industrial applications. It supports Flyback topology and features a single output with a maximum duty cycle of 50%. The device operates at a switching frequency of 110 kHz and provides an output current capability of 200 mA. It includes a shutdown function and offers rail-to-rail output drive. The component is housed in an SOIC-8 package and is rated for operation within a temperature range of -40°C to +125°C.

DC DC Switching Controllers Feature Summary

• Supports Flyback converter topology for isolated power supply designs
• Integrates a shutdown pin for power management control
• Features rail-to-rail output driver for gate drive efficiency
• Optimized for low-power current-mode PWM control

DC DC Switching Controllers Applications

• Industrial AC/DC converters
• Flyback-based power supplies
• General-purpose isolated DC-DC conversion

DC DC Switching Controllers Procurement Notes

Verify the specific suffix DR indicates the SOIC-8 tube or reel packaging configuration as per the manufacturer's official documentation. Confirm that the AEC-Q100 qualification status applies to this specific part number variant if automotive reliability is required, as standard industrial versions may differ. Ensure the flyback topology requirement aligns with the fixed 50% duty cycle limitation specified in the datasheet.

DC DC Switching Controllers Selection Notes

Select the UCC28C54DR for applications requiring a simple, low-cost flyback solution with minimal external components. The fixed 110 kHz frequency simplifies magnetics design but limits flexibility compared to adjustable controllers. The 200 mA output current is suitable for driving small MOSFETs directly. Consider the absence of soft-start or advanced protection features inherent to basic current-mode controllers when designing the system.

DC DC Switching Controllers Part Context

This component belongs to the UCC28C5x series of low-power current-mode PWM controllers. These devices are engineered for cost-sensitive industrial applications where high performance is not the primary driver. The series typically shares similar electrical characteristics, differing mainly in output drive capabilities or specific feature sets like shutdown functionality.

DC DC Switching Controllers Replacement Considerations

UCC28C59DR: Offers higher output current (4 A) and multiple outputs but lacks shutdown. UCC28C43QDRQ1: Automotive qualified with different voltage ratings. Verify compatibility regarding the fixed 50% duty cycle constraint across substitutes.