UC3879DWG4

DC DC Switching Controllers Overview

The UC3879DWG4 is a phase-shift resonant controller in a 20-SOIC package. It operates with a maximum switching frequency of 300 kHz and supports four outputs. The device functions within a supply voltage range of -55V to 125V and operates between 0°C and 70°C. It features clock synchronization, soft start, and ramp control. The controller manages half-bridge topologies with up to 50% duty cycle and includes programmable output turn-on delay.

DC DC Switching Controllers Feature Summary

• Controls bridge power stages by phase shifting one half-bridge relative to the other for constant frequency pulse width modulation.
• Compatible with both voltage mode and current mode control topologies for flexible design implementation.
• Includes programmable output turn-on delay capabilities, supporting zero delay configurations when required.

DC DC Switching Controllers Applications

• Phase-shifted full-bridge DC-DC converters
• Resonant power supply designs
• High-efficiency industrial power conversion systems

DC DC Switching Controllers Procurement Notes

Verify the specific suffix against official Texas Instruments documentation to confirm pinout and electrical characteristics. Ensure the selected package variant matches the PCB footprint requirements. Confirm RoHS compliance status through the manufacturer's latest release notes before finalizing procurement decisions.

DC DC Switching Controllers Selection Notes

Select this component for applications requiring precise phase-shift control in resonant topologies. Consider the 20-SOIC package dimensions for thermal management and board space constraints. Evaluate the 300 kHz frequency limit against system efficiency targets and electromagnetic interference requirements.

DC DC Switching Controllers Part Context

This part belongs to the UC series of PWM controllers from Texas Instruments. It is designed specifically for phase-shift resonant applications, offering enhanced bipolar performance. The device integrates essential control features for high-power density converter designs.

DC DC Switching Controllers Replacement Considerations

Check for UC3879DW as a potential alternative. Verify functional compatibility and pinout alignment before substitution. Consult official datasheets for any differences in electrical specifications or package dimensions.

DC DC Switching Controllers FAQ

What topology does the UC3879DWG4 support?

It controls a bridge power stage using phase shifting, compatible with half-bridge and full-bridge topologies.

Is clock synchronization available on this controller?

Yes, the device supports clock synchronization for multi-controller systems.