85 to 265VAC Input 12V@3A High Efficiency Adapator Reference Design PMP9715 (ACTIVE)

Description & Features

Technical Documents

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Description

This reference design provides an isolated 12V/36W output from a universal AC input range with over 89% peak efficiency. The UCC24610 synchronous rectifier controller and CSD19531Q5A FET reduce the rectifier loss and provide high efficiency with a minimal increase in cost. The UCC28740 flyback controller uses a combination of peak current modulation and frequency modulation to maintain excellent efficiency at lighter loads and minimize no load power consumption.  The current regulation feature of the UCC28740 provides accurate current limit protection. This compact design consumes a volume of only 2.0" x 2.0" x 0.75".

Features
  • Compact AC/DC adaptor design (2.0" x 2.0" x 0.75")
  • Synchronous rectification for high efficiency (>89% peak, 88.7% average)
  • Accurate current limiting
  • Consumes less than 150mW power at no load to qualify for 4-star EC IPP Mobile device charger rating
  • Less than 150ms start-up time at full-load

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Schematic/Block Diagram

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Test Data

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Design Files

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Parametrics
 PMP9715.1
(Output Voltage 1)
Vin (Min) (V)85
Vin (Max) (V)265
Vout (Nom) (V)12
Iout (Max) (A)3
Output Power (W)36
Isolated/Non-IsolatedIsolated
Input TypeAC
TopologyFlyback- DCM
Flyback- Quasi Resonant
Flyback- Synchronous

TI Devices (5)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CSD19531Q5A  100V, N ch NexFET MOSFET™, single SON5x6, 6.4mOhm  MOSFETs  Sample & Buy View Design Kits & Evaluation Modules
TL431  Adjustable precision shunt regulator  Voltage references  Sample & Buy Not Available
TPS715  50 mA, 24 V, 3.2-μA Iq, Low-Dropout Linear Regulator in SC70 Package  Power management  Sample & Buy View Design Kits & Evaluation Modules
UCC24610  Secondary Side Synchronous Rectifier Controller  Offline & isolated DC/DC controllers & converters  Sample & Buy View 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)
CSD19531Q5A VSONP (DQJ)| 8 Download
TL431 Download Download
Download Download
Download -
Download Download
Download Download
Download Download
Download Download
Download -
Download Download
TPS715 Download Download
UCC24610 Download Download
Download Download
UCC28740 Download Download

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Technical Documents

See the Important Notice and Disclaimer covering reference designs and other TI resources.

User guides (1)
Title Type Size (KB) Date
PDF 4360 10 Dec 2014
Design files (5)
Title Type Size (KB) Date
ZIP 193 10 Dec 2014
PDF 234 10 Dec 2014
PDF 66 10 Dec 2014
PDF 84 10 Dec 2014
PDF 125 10 Dec 2014

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