100 W LLC DC-DC Converter

This reference design provides design guide, data and other contents of 100 W LLC DC-DC Converter which uses Zero Volt Switching implemented using LLC resonance.

Board photo of 100 W LLC DC-DC Converter
TPN7R504PL TPN7R504PL TLP785 TPH1R204PL TPH1R204PL

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Features

  • Total efficiency : 88 % (Vin = 24 V, 100 % load)
  • Outline size : 110 mm x 110 mm x 35 mm (excluding input and output terminals on backside)
  • Uses optimum power MOSFETs and photocoupler

Description

Input voltage DC 22.8 to 25.2 V
Output voltage DC 12 V
Output power 100 W
Circuit topology LLC Resonance + Synchronous Rectification Circuit
Efficiency Curve of 100 W LLC DC-DC Converter
Efficiency Curve

Design Documents

Materials for designers, such as an overview of circuit operation and explanations of design considerations. Please click on each tab to view the contents.

Design Data

Provides circuit data that can be loaded into EDA tools, PCB layout data, and data used in PCB manufacturing. Available in formats from multiple tool vendors. You can freely edit it with your preferred tool.

Used Toshiba Items

Part Number Device Category Portion Usage Description
Power MOSFET (N-ch single 30V<VDSS≤60V) Primary-side main switch・2 N-ch MOSFET, 40 V, 0.0075 Ω@10V, TSON Advance, U-MOSⅨ-H
Power MOSFET (N-ch single 30V<VDSS≤60V) Secondary-side・2 N-ch MOSFET, 40 V, 0.00124 Ω@10V, SOP Advance, U-MOSⅨ-H

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