UCD3138 Hard Switching Full Bridge Converter Evaluation Module


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The Texas Instruments UCD3138HSFBEVM-029 evaluation module (EVM) is a digitally controlled hard switching full bridge converter based on the UCD3138RHA programmable digital power controller. The EVM is a standalone Symmetrical Hard Switching Full-Bridge (HSFB) DC-DC power converter designed for 48V-in systems. The UCD3138HSFBEVM-029 accepts a DC input from 36 to 72Vdc, and outputs a nominal 12Vdc with full output load power 360W, or full output current 30A. The protection features include over-voltage, under-voltage, over-current and over-temperature. Features include input voltage feedforward, pre-biased startup and PMBus communication. The UCD3138HSFBEVM-029 also comes with a USB-TO-GPIO Interface Adapter to download firmware and program the UCD3138 digital power controller in the EVM.

  • Digitally controlled and standalone hard switching full-bridge DC-DC power conversion
  • Voltage mode control
  • Secondary side control
  • DC input from 36 to 72Vdc
  • 12Vdc regulated output from no-load to full-load
  • Full-load power 360W, or full-load current 30A
  • High efficiency
  • Constant soft start time
  • Protection: over voltage, under voltage, over current, and over temperature
  • Constant current and constant power
  • Input voltage feed forward control
  • PMBus communications
  • Test points to facilitate device and topology evaluation

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UCD3138HSFBEVM-029 Evaluation Module


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Technical Documents
User guides (1)
Title Abstract Type Size (KB) Date Views
PDF 5855 30 Jan 2013 760

Software (1)

Name Part Number Software Type
UCD3138 Hard Switch Full Bridge  UCD3138FW-HSFB  Software Libraries 

Design Kits & Evaluation Modules (2)

Name Part Number Tool Type
UCD3138 Programmable Digital Power Controller Open Loop Evaluation Module (40-pin version)  UCD3138OL40EVM-032  Evaluation Modules & Boards 
USB Interface Adapter EVM  USB-TO-GPIO  Evaluation Modules & Boards 

TI Devices (8)

Part Number Name Product Family
UCC25230  12V to 105V Input, 0.2A Output Switching Converter  Power Supply Support 
UCC27211  120V Boot, 4A Peak, High Frequency High-Side Low-Side Driver  AC/DC and Isolated DC/DC Power Supply 
UCC27524  Dual, 5A, High-Speed Low-Side Power MOSFET Driver  AC/DC and Isolated DC/DC Power Supply 
UCD3138  Highly Integrated Digital Controller for Isolated Power with 3 Feedback Loops and 8 DPWM Outputs  Gallium Nitride (GaN)  Solutions 
UCD3138064  Highly-Integrated Digital Controller for Isolated Power with 64kB Memory  Digital Power Control Solutions 
UCD3138128  Highly-Integrated Digital Controller for Isolated Power  Digital Power Control Solutions 
UCD3138A  UCD3138A Highly Integrated Digital Controller for Isolated Power  Digital Power Control Solutions 
UCD3138A64  Highly-Integrated Digital Controller for Isolated Power  Digital Power Control Solutions 
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