18Vdc-54Vdc Input, 24V @ 5A Output, Active Clamp Forward

(ACTIVE) PMP4844

Description & Features

Technical Documents

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Description

The PMP4844 reference design provides an isolated 24V output at 120W from an 18V to 54V telecom input with up to 94% efficiency. This design uses the UCC2897A active clamp controller along with an ISO721 digital isolator and TPS28225 to drive synchronous rectifiers. The circuit is built in an industry standard Half-Brick footprint.

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


  




Bill of Materials (BOM)

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Parametrics
 PMP4844.1
(Output Voltage 1)
Vin (Min) (V)18
Vin (Max) (V)54
Vout (Nom) (V)24
Iout (Max) (A)5
Output Power (W)120
Isolated/Non-IsolatedIsolated
Input TypeDC
TopologyForward- Active Clamp
Forward- Synchronous

TI Devices (3)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
ISO721M  Single 150Mbps Digital Isolator   Isolation  Sample & Buy Not Available
TPS28225  8-Pin High Frequency 4-Amp Sink Synchronous MOSFET Driver  Gate Drivers  Sample & Buy Not Available
UCC2897A  Advanced Current-Mode Active Clamp PWM Controller  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)
ISO721M Download Download
Download -
TPS28225 Download Download
Download Download
UCC2897A Download Download
Download -

Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.

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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 1988 15 Aug 2011 9
Design files (4)
Title Abstract Type Size (KB) Date Views
PDF 72 21 Mar 2013 7
ZIP 160 21 Mar 2013 9
PDF 37 01 Aug 2011 8
PDF 66 01 Aug 2011 20

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