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48-V/550-W resonant converter reference design
PMP21683
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Key Document

Description

This resonant converter reference design takes a 380-V to 420-V DC input and generates a 48-V up to 550-W output. With the UCC256302 driver-integrated resonant converter controller and UCC24624, a two-channel synchronous rectifier (SR) driver, this design can achieve 97.95% peak efficiency.

Features
  • 110-kHz resonant frequency
  • 400-V to 48-V/550-W conversion
  • 97.95% efficiency at 380-V input
  • 3.45" x 4.95" x 1.4" board dimension

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Schematic/Block Diagram

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Design Guide

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Design Files

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Parametrics
 PMP21683.1
(Output Voltage 1)
Vin (Min) (V)380
Vin (Max) (V)420
Vout (Nom) (V)48
Iout (Max) (A)11.5
Output Power (W)552
Isolated/Non-IsolatedIsolated
Input TypeDC
TopologyHalf Bridge- Resonant

TI Devices (4)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
TLV704  150-mA, 24-V, ultra-low-IQ, low-dropout voltage regulator  Power management  Sample & Buy View Design Kits & Evaluation Modules
TLVH431A  1% low-voltage wide-operating current adjustable precision shunt regulator  Voltage references  Sample & Buy View Design Kits & Evaluation Modules
UCC24624  High frequency Dual synchronous rectifier controller for LLC Converter  Offline & isolated DC/DC controllers & converters  Sample & Buy View Design Kits & Evaluation Modules
UCC256302  LLC resonant controller with high voltage start up enabling low standby power  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)
TLV704 Download Download
TLVH431A Download Download
Download Download
Download -
Download Download
Download Download
UCC24624 Download
UCC256302 Download Download

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Technical documentation

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User guide (1)
Title Type Size (KB) Date
PDF 4735 26 Apr 2019
Design files (6)
Title Type Size (KB) Date
ZIP 1646 26 Apr 2019
ZIP 1004 26 Apr 2019
PDF 818 26 Apr 2019
PDF 232 26 Apr 2019
PDF 104 26 Apr 2019
PDF 215 26 Apr 2019

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