260 W off-line multiple-output LLC-SRC reference design
PMP21582
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Key Document

Description

This reference design uses UCC256302 LLC resonant controller to provide US-line AC input to a 30-V, 250-W output and a 13.8-V, 11-W output conversion. The low profile design has a maximum height of 1 inch. This design achieves 94% peak efficiency at 120-VAC input.

Features
  • US-line AC input is narrow enough for a single-stage LLC design that does not require a PFC
  • 94% peak efficiency achieved with non-synchronous rectifier output
  • Low-profile board design for a smaller solution size compared to AC transformer
  • Tight-cross regulation for 30-V DC motor output
  • Integrated resonant inductor allows for smaller BOM count

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Design Files

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Parametrics
 PMP21582.1
(Output Voltage 1)
PMP21582.2
(Output Voltage 2)
PMP21582.3
(Output Voltage 3)
Vin (Min) (V)909090
Vin (Max) (V)264264264
Vout (Nom) (V)3013.83.3
Iout (Max) (A)8.333.8.2
Output Power (W)249.9911.04.66
Isolated/Non-IsolatedIsolatedIsolatedNon-Isolated
Input TypeACACAC
TopologyHalf Bridge- LLCHalf Bridge- LLCLinear Regulator

TI Devices (3)

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
LM1117  Space saving 800-mA low-dropout linear regulator with internal current limit  Power management  Sample & Buy View Design Kits & Evaluation Modules
TLVH431A  1% accuracy low-voltage wide-operating current adjustable precision shunt regulator  Voltage references  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)
LM1117 Download Download
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TLVH431A Download Download
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UCC256302 Download Download

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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 2346 04 Feb 2019
Design files (6)
Title Type Size (KB) Date
ZIP 2564 04 Feb 2019
ZIP 894 04 Feb 2019
PDF 1055 04 Feb 2019
PDF 328 04 Feb 2019
PDF 161 04 Feb 2019
PDF 165 04 Feb 2019

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