Primary-Side Regulated Flyback w/85-265VAC Input High Output Energy Storage Reference Design

(ACTIVE) PMP8930

Description & Features

Technical Documents

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Description

The PMP8930 reference design uses the UCC28710 primary-side regulated flyback controller to generate a 20V output from a univeral AC input. a bulk capacitor with slow-charge-fast-discharge circuit is placed at flyback output to provide long hold up time for the following step-down DC-DC stages. TPS54335 is used as the controller and power stage for the main 4V or 12V output. The valley switching of the UCC28710 allows this low-cost design to achieve a maximum load efficiency of 83%; no load losses are less than 70mW.

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Bill of Materials (BOM)

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Parametrics
 PMP8930.1
(Output Voltage 1)
PMP8930.2
(Output Voltage 2)
PMP8930.3
(Output Voltage 3)
PMP8930.4
(Output Voltage 4)
PMP8930.5
(Output Voltage 5)
Vin (Min) (V)8585858585
Vin (Max) (V)265265265265265
Vout (Nom) (V)2054123.3
Iout (Max) (A).05.011.4.15.05
Output Power (W)1.055.61.8.165
Isolated/Non-IsolatedIsolatedIsolatedIsolatedIsolatedIsolated
Input TypeACACACACAC
TopologyFlyback- DCMFlyback- DCMFlyback- DCMFlyback- DCMFlyback- DCM

TI Devices (4)

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
LM2903  Dual Differential Comparator  Amplifiers  Sample & Buy Not Available
LM317  3/4 Pin 1.5A Adjustable Positive Voltage Regulator  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS54335A  4.5V to 28V Input, 3A, Synchronous, Step-Down Converter with Eco-mode  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules
UCC28710  Constant-Voltage, Constant-Current PWM Controller 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)
LM2903 Download Download
Download Download
Download Download
Download -
Download Download
LM317 (KC) | 3 Download -
Download Download
Download
(KTE) | 3 Download -
Download -
Download Download
TPS54335A Download Download
Download Download
UCC28710 Download

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Technical Documents

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

User guides (5)
Title Abstract Type Size (KB) Date Views
PDF 1563 12 Sep 2013 7
PDF 1563 12 Sep 2013 7
PDF 1563 12 Sep 2013 7
PDF 1563 12 Sep 2013 6
PDF 1563 12 Sep 2013 7
Design files (11)
Title Abstract Type Size (KB) Date Views
PDF 120 12 Sep 2013 3
PDF 133 12 Sep 2013 4
PDF 120 12 Sep 2013 3
PDF 133 12 Sep 2013 2
PDF 120 12 Sep 2013 4
PDF 133 12 Sep 2013 2
PDF 120 12 Sep 2013 3
PDF 133 12 Sep 2013 2
ZIP 233 12 Sep 2013 8
PDF 120 12 Sep 2013 5
PDF 133 12 Sep 2013 2

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