Small 3W Isolated Flyback, 30V…70Vin to 7V@430mA Reference Design

(ACTIVE) PMP8657

Description & Features

Technical Documents

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Description

This simple isolated flyback converts 30V…70Vin to 7V@430mA. The LM5021-2 controller is suitable for green mode converters due to pulse skip mode.

Features
  • Over 87% efficiency at full load
  • Over 70% efficiency at 10% load
  • Fast startup
  • Simple design
  • Improved light load efficiency thanks to skip mode, while working in constant switching frequency

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


  



Schematic/Block Diagram

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Test Data

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Design Files

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Bill of Materials (BOM)

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Parametrics
 PMP8657.1
(Output Voltage 1)
Vin (Min) (V)30
Vin (Max) (V)70
Vout (Nom) (V)7
Iout (Max) (A).43
Output Power (W)3.01
Isolated/Non-IsolatedIsolated
Input TypeDC
TopologyFlyback- Non Sync

TI Devices (1)

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
LM5021  AC-DC Current Mode PWM Controller  Offline & isolated DC/DC controllers & converters  Sample & Buy Not Available

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
LM5021 Download Download
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 538 24 Oct 2014 3
Design files (3)
Title Abstract Type Size (KB) Date Views
ZIP 22 24 Oct 2014 4
PDF 35 24 Oct 2014 4
PDF 168 24 Oct 2014 7

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