UCD3138FW_LLC

UCD3138 LLC Half Bridge Firmware

UCD3138FW_LLC

Downloads

Overview

UCD3138 Resonant LLC Programmer quickly gets a designer through evaluation to production in power supply designs based on a resonant LLC topology by providing  firmware with ZCS protection and mode switching capability to achieve high efficiency across wider operating conditions. The sunflower feature (UCC7138) in the firmware provides advanced synchronous rectification control.

The resonant LLC topology reduces switching losses and EMI while offering great efficiency through a half-bridge converter with zero-voltage switching on the primary side of the converter. It scales to high power output levels and can operate well with a wide range of input voltages.

Features

This firmware comes with native support for following features:

  • Dynamic mode switching between frequencies to pulse width modulation
  • Cycle by cycle current limit with duty cycle matching
  • Short-circuit constant current operation
  • Overcurrent/overload protection
  • Current sharing
  • Optimized dead time using UCD7138 (sunflower)
  • Accurate and adaptable primary-to-secondary timing control
  • Fully flexible dead time control between all MOSFETs control signals
  • Hysteretic burst mode (based on voltage mode control) for light load efficiency
  • Constant current, constant power control under overload
  • ZCS prevention and protection
  • Optimized loop coefficients for different operating regions
  • PMBus 1.2 with 400 KHz for telemetry operations

 What’s Included:

  • Application examples
  • EVM and firmware collaterals

Downloads

Firmware

UCD3138FW_LLC UCD3138 LLC Half bridge Firmware

Supported products & hardware

Supported products & hardware

Digital power isolated controllers
UCD3138 Highly Integrated Digital Controller for Isolated Power with 3 Feedback Loops and 8 DPWM Outputs UCD3138064 Highly-Integrated Digital Controller for Isolated Power with 64kB Memory UCD3138064A Highly Integrated Digital Controller for Isolated Power UCD3138128 Highly-Integrated Digital Controller for Isolated Power UCD3138128A Highly-Integrated Digital Controller For Isolated Power UCD3138A UCD3138A Highly Integrated Digital Controller for Isolated Power UCD3138A64 Highly-Integrated Digital Controller for Isolated Power

Related design resources

Software development

APPLICATION SOFTWARE & FRAMEWORK
FUSION_DIGITAL_POWER_DESIGNER Digital Power Software
IDE, CONFIGURATION, COMPILER OR DEBUGGER
CCSTUDIO Code Composer Studio™ integrated development environment (IDE)

Support & training

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