Valley Switching Flyback with 85 to 265VAC Input (48V @ 0.625A) Reference Design

(ACTIVE) PMP12027

Description & Features

Technical Documents

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Key Document

Description

The PMP12027 reference design uses the UCC28740 flyback controller to generate a 48V/625mA output from a universal AC input.  The valley switching of the UCC28740 allows this design to achieve a maximum load efficiency over 90%; no load losses are less than 100mW. The constant current regulation mode of the UCC28740 provides accurate current limiting.

Features
  • Over 90% average 4 point efficiency
  • Standby (no load) power consumption is less than 100mW
  • Conducted emissions are below Class B levels
  • Accurate current limiting

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


  




Parametrics
 PMP12027.1
(Output Voltage 1)
Vin (Min) (V)85
Vin (Max) (V)265
Vout (Nom) (V)48
Iout (Max) (A).625
Output Power (W)30
Isolated/Non-IsolatedIsolated
Input TypeAC
TopologyFlyback

TI Devices (2)

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
TL431A  Adjustable Precision Shunt Regulator  Voltage Reference  Sample & Buy Not Available
UCC28740  Constant-Voltage, Constant-Current Flyback Controller Using Opto-Coupler Feedback  Offline and Isolated DC/DC Controllers and Converters  Sample & Buy View Design Kits & Evaluation Modules

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 TI Recommends
PDF 2223 28 Mar 2016 33
Design files (3)
Title Abstract Type Size (KB) Date Views
PDF 132 28 Mar 2016 37
PDF 74 21 Mar 2016 7
PDF 103 21 Mar 2016 16


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