High Line Input to 12V@1A Primary Side Regulated, Quasi Resonant Flyback Reference Design

(ACTIVE) PMP7249

Description & Features

Technical Documents

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Description

Low component count and low cost isolated flyback, converting the high line mains (180Vac…275Vac) to 12V@1A, 1.2Amax. Thanks to the UCC28700 controller, no optocoupler is needed to close the loop.

Features
  • Lower component count
  • Lower cost – Opto coupler eliminated
  • Efficiency improvement over fixed frequency as it is using a QR flyback UCC28700

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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
 PMP7249.1
(Output Voltage 1)
Vin (Min) (V)180
Vin (Max) (V)275
Vout (Nom) (V)12
Iout (Max) (A)1
Output Power (W)12
Isolated/Non-IsolatedIsolated
Input TypeAC
TopologyFlyback- Quasi Resonant

TI Devices (1)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
UCC28700  Constant-Voltage, Constant-Current PWM With Primary-Side Regulation  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)
UCC28700 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 403 14 Apr 2014 10
Design files (3)
Title Abstract Type Size (KB) Date Views
ZIP 104 24 Nov 2014 4
PDF 22 14 Apr 2014 3
PDF 55 14 Apr 2014 11

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