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340W Digital Controlled LLC Resonant Half-Bridge DC-to-DC Power Conversion Reference Design
TIDA-00512
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Description

This design is a LLC resonant half-bridge DC-DC power converter with digital control using 3138ACC32EVM-149 daughter-card. The daughter-card control functions with preloaded firmware providing the required control functions for a LLC resonant half-bridge converter.  The TIDA-00512 (3138ALLCEVM-150) accepts a DC input from 350VDC to 400VDC, and outputs a nominal 12VDC with full load output power of 340W, or full output current of 29A.

As seen at APEC

Features
  • Synchronous rectification
  • Optimal diode emulation and dead time of synchronous rectification
  • Cycle-by-cycle current limiting with duty cycle matching
  • Automatic mode switching between LLC mode and PWM mode
  • Test points to facilitate device and topology evaluation

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Schematic/Block Diagram

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Design Files

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Parametrics
 TIDA-00512.1
(Output Voltage 1)
Vin (Min) (V)350
Vin (Max) (V)400
Vout (Nom) (V)12
Iout (Max) (A)29
Output Power (W)348
Isolated/Non-IsolatedIsolated
Input TypeDC
TopologyHalf Bridge- LLC

TI Devices (8)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
OPA376  Precision (0.025mV), low noise (7.5nV/rtHz), low quiescent current (760uA) op amp  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
SN65C3221  3-V To 5.5-V Multichannel RS-232 Line Driver/Receiver  Interface  Sample & Buy Not Available
TPS2411  0.8-V to 16.5-V 1.2A IQ 293-uA Igate source N+1 and OR-ing power rail controller  Power switches  Sample & Buy View Design Kits & Evaluation Modules
UCC27714  4-A, 600-V half bridge gate driver  Gate drivers  Sample & Buy View Design Kits & Evaluation Modules
UCC28600  8-pin quasi resonant Flyback green mode controller  Offline & isolated DC/DC controllers & converters  Sample & Buy View Design Kits & Evaluation Modules
UCD3138064A  Highly Integrated Digital Controller for Isolated Power  Digital power ICs  Sample & Buy View Design Kits & Evaluation Modules
UCD3138A  UCD3138A Highly Integrated Digital Controller for Isolated Power  Digital power ICs  Sample & Buy View Design Kits & Evaluation Modules
UCD7138  Low-side Power MOSFET Driver With Body Diode conduction Sensing  Offline & isolated DC/DC controllers & converters  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
OPA376 Download Download
Download Download
Download Download
SN65C3221 Download Download
Download -
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TPS2411 Download -
Download
UCC27714 Download -
UCC28600 Download Download
UCD3138064A Download
UCD3138A Download
Download
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Technical documentation

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User guide (1)
Title Type Size (KB) Date
PDF 429 27 Feb 2015
Design files (4)
Title Type Size (KB) Date
ZIP 390 27 Feb 2015
PDF 320 27 Feb 2015
PDF 120 27 Feb 2015
PDF 408 27 Feb 2015

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