Isolated Non-synchronous Flyback Converts Universal Vin to 18V@550mA Reference Design

(ACTIVE) PMP8586

Description & Features

Technical Documents

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Description

The LM5021-2 is an off-line controller that can work in CCM and DCM. A pulse skip mode improves the efficiency of this isolated flyback, and flattens the curve at most loads. It is also suitable for power line communication PSU.

Features
  • Ability for the power supply to work in both CCM and DCM mode
  • Wide Vin capability (90 to 275V AC)
  • Duty cycle restriction to 80%
  • 84% full load efficiency and over a wide range of load
  • Gives the user the flexibility to do external slope compensation with LM5021-2

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


  



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Design Files

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Bill of Materials (BOM)

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Parametrics
 PMP8586.1
(Output Voltage 1)
Vin (Min) (V)90
Vin (Max) (V)275
Vout (Nom) (V)18
Iout (Max) (A).55
Output Power (W)9.9
Isolated/Non-IsolatedIsolated
Input TypeAC
TopologyFlyback- Non Sync

TI Devices (2)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
LM5021  AC-DC Current Mode PWM Controller  Offline & isolated DC/DC controllers & converters  Sample & Buy Not Available
TL431A  1% Accuracy Adjustable Precision Shunt Regulator  Voltage references  Sample & Buy Not Available

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
LM5021 Download Download
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TL431A Download Download
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Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views
PDF 747 16 Apr 2014 3
Design files (3)
Title Abstract Type Size (KB) Date Views
ZIP 103 16 Apr 2014 3
PDF 23 16 Apr 2014 3
PDF 62 16 Apr 2014 2

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