8Vdc-75Vdc Input; 3.3V, +/-2.5V, 1.2V Output; Ultra-Low Power Flyback

(ACTIVE) PMP4986

Description & Features

Technical Documents

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Description

The PMP4986 reference design uses the UCC2581 PWM controller to generate an isolated 3.3V/300mA output. Three TPS62110 converters are used to create +/-2.5V and 1.2V outputs from the 3.3V output. A TPS54060 is used on the primary side to create a non-isolated 3.3V/12mA output. The TPS62110 converters can be synchronized to an external 1MHz clock. The UCC2581 and TPS54060 supplies can be synchronized to an external 125kHz clock through the ISO7242.

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Bill of Materials (BOM)

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Parametrics
 PMP4986.1
(Output Voltage 1)
Vin (Min) (V)8
Vin (Max) (V)75
Vout (Nom) (V)3.3
Iout (Max) (A).3
Output Power (W).99
Isolated/Non-IsolatedIsolated
Input TypeDC
TopologyFlyback- Non Sync
Flyback- DCM

TI Devices (4)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
TPS54060  3.5V to 60V Input, 0.5A Step-Down Converter with Eco-Mode  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules
TPS54060-EP  TPS54060-EP- 0.5-A, 60V Step Down DC/DC Converter with Eco-Mode  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules
TPS62110  Adjustable, 1.5-A, 17-V Vin Step-Down Converter in QFN-16  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules
UCC2581  Micropower Voltage Mode PWM  Offline & isolated DC/DC controllers & converters  Sample & Buy Not Available

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
TPS54060 Download -
Download Download
TPS54060-EP Download
TPS62110 Download Download
UCC2581 Download Download

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Step 2: Download the Symbol and Footprint from the CAD.bxl file table.


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 1869 15 Aug 2011 6
Design files (2)
Title Abstract Type Size (KB) Date Views
PDF 65 02 Aug 2011 7
PDF 114 02 Aug 2011 8

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