UCC38084DRG4

DC DC Switching Controllers Overview

The UCC38084DRG4 is a discontinued current-mode push-pull PWM controller from Texas Instruments, designed for high-frequency DC-DC conversion. It supports boost, buck, and step-up/step-down topologies with a maximum switching frequency of 1 MHz. The device features two outputs with a maximum duty cycle of 50% and an output current capability of 1 A. Operating within a supply voltage range of 4.1V to 15V, it utilizes an 8-SOIC package (0.154 inch width) suitable for surface-mount installation. The component operates across a temperature range of -40°C to 70°C.

DC DC Switching Controllers Feature Summary

• Implements current-mode control architecture with programmable slope compensation for stable operation in push-pull configurations.
• Supports versatile power stage topologies including boost, buck, and combined step-up/step-down applications.
• Integrates dual transistor drivers optimized for synchronous rectification and efficient power management.

DC DC Switching Controllers Applications

• High-density DC-DC converters requiring push-pull topology
• Industrial power supplies utilizing boost or buck architectures
• Telecommunications equipment power stages

DC DC Switching Controllers Procurement Notes

The UCC38084DRG4 is officially discontinued by the manufacturer and no longer available through Digi-Key. Verification of availability should focus on authorized distributors offering remaining stock or approved replacement components. Cross-reference datasheets carefully to ensure pinout and electrical specifications match the original design requirements before substituting with newer variants such as the UCC38085 series.

DC DC Switching Controllers Selection Notes

Select this component only if the specific current-mode push-pull control scheme aligns with the system's power architecture. Consider the 1 MHz switching frequency for passive component sizing and the 8-SOIC package constraints for PCB layout. Evaluate thermal performance within the specified operating temperature range and verify that the 50% maximum duty cycle meets the input-to-output voltage conversion ratio requirements.

DC DC Switching Controllers Part Context

This part belongs to the UCC3808x family of current-mode push-pull PWM controllers. These devices are engineered for applications demanding precise timing and robust control in isolated or non-isolated power conversion systems. The DRG4 suffix indicates the tape-and-reel packaging format compatible with automated assembly processes.

DC DC Switching Controllers Replacement Considerations

The UCC38085DRG4 is documented as a substitute option. Verify compatibility regarding programming slope compensation and operational temperature ranges before implementation.