120VAC Input 5V/200mA Flyback Converter With BJT Switch Reference Design

(ACTIVE) PMP9059

Description & Features

Technical Documents

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Description

This reference design creates a 5V at 200mA from a 120VAC Input. This supply is to designed to fit into a very small volume with approximately 10mm total height. The UCC28720 primary side controller with a BJT power switch provides a low cost design. A TPS71433 is also used to provide an additional 3.3V rail. It is important to note the outputs are only functionally (not for safety) isolated from the input.

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Bill of Materials (BOM)

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Parametrics
 PMP9059.1
(Output Voltage 1)
Vin (Min) (V)85
Vin (Max) (V)132
Vout (Nom) (V)5
Iout (Max) (A).2
Output Power (W)1
Isolated/Non-IsolatedIsolated
Input TypeAC
TopologyFlyback- Quasi Resonant
Flyback- DCM
Flyback- Non Sync

TI Devices (2)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
TPS714  80mA, 10V, Quiescent Current 3.0μA, LDO Linear Regulator in SC70 or SON2x2  Power management  Sample & Buy View Design Kits & Evaluation Modules
UCC28720  Constant-Voltage, Constant-Current Controller with Primary-Side Regulation for Bipolar Power Devices  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)
TPS714 Download
Download
UCC28720 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 1050 13 Sep 2013 5
Design files (4)
Title Abstract Type Size (KB) Date Views
PDF 159 13 Sep 2013 4
ZIP 163 13 Sep 2013 2
PDF 79 13 Sep 2013 9
PDF 111 13 Sep 2013 5

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