Flyback with Universal Input (85 - 264Vac), Dual Output 12V/2A and 3.3V/0.5A

(ACTIVE) PMP9638

Description & Features

Technical Documents

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Description

The PMP9638 reference design uses the UCC28740 Flyback with resonant-ring valley-switching controller to generate dual DC output 12V/2A and 3.3V/0.5A from a universal AC input. This design minimize switching loss in FET to provide high efficiency. The current regulation feature of the UCC28740 provides accurate current limit protection.

Features
  • Universal input 85 -264VAC
  • Dual outputs
  • Output constant voltage and constant current mode hold up time for outputs
  • Lower Switching loss

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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
 PMP9638.1
(Output Voltage 1)
Vin (Min) (V)85
Vin (Max) (V)265
Vout (Nom) (V)12
Iout (Max) (A)2
Output Power (W)24
Isolated/Non-IsolatedIsolated
Input TypeAC
TopologyFlyback- DCM

TI Devices (1)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
UCC28740  Constant-Voltage, Constant-Current Flyback Controller Using Opto-Coupler Feedback  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)
UCC28740 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 1631 26 Nov 2014 12
Design files (3)
Title Abstract Type Size (KB) Date Views
ZIP 201 26 Nov 2014 7
PDF 120 26 Nov 2014 3
PDF 114 26 Nov 2014 16

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