1/8 Brick Isolated DC/DC Telecom Power Module Digital Control Reference Design

(ACTIVE) PMP8877

Description & Features

Technical Documents

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Description

PMP8877 is a full-function 1/8th brick isolated DC/DC telecom power module based on the UCD3138 digital power controller. The reference design features secondary side control and hard switching full bridge power topology to deliver 12V/180W of output power operating across a wide range 36V-72V input source. The highlights of the reference design include 94% peak efficiency, fast input voltage feedforward response to input voltage surges, constant current/constant power overload protection, pre-bias start-up, current sharing control for paralleled module applications and PMBUS support for communication with peer controllers. The bias supply block employs the UCC25230, while the gate drivers used in this design include UCC27524 for driving the SR MOSFETs and UCC27211 for driving the primary side Half-Bridge MOSFETs. Other components include the ISO7240 for sending signals across the isolation barrier.

Features
  • 36-72V input, 12V/15A output 
  • 1/8th brick telecom DC/DC isolated power module
  • Featuring Hard Switching Full Bridge power topology 
  • Secondary side control with integrated PMBUS commucation
  • Pre-biased start-up 
  • Fast Input Voltage Feed-forward


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Schematic/Block Diagram

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Design Files

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TI Devices (10)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
TPS76201  Single Output LDO, 100mA, Adj.(0.7 to 5.5V), Low Quiescent Current, Over Current Limitation  Power management  Sample & Buy Not Available
UCC25230  12V to 105V Input, 0.2A Output Switching Converter  Offline & isolated DC/DC controllers & converters  Sample & Buy View Design Kits & Evaluation Modules
UCC27211  120V Boot, 4A Peak, High Frequency High-Side Low-Side Driver  Gate drivers  Sample & Buy View Design Kits & Evaluation Modules
UCC27524  Dual, 5A, High-Speed Low-Side Power MOSFET Driver  Gate drivers  Sample & Buy View Design Kits & Evaluation Modules
UCD3138  Highly Integrated Digital Controller for Isolated Power with 3 Feedback Loops and 8 DPWM Outputs  Digital power  Sample & Buy View Design Kits & Evaluation Modules
UCD3138064  Highly-Integrated Digital Controller for Isolated Power with 64kB Memory  Digital power  Sample & Buy View Design Kits & Evaluation Modules
UCD3138064A  Highly Integrated Digital Controller for Isolated Power   Digital power  Sample & Buy View Design Kits & Evaluation Modules
UCD3138128  Highly-Integrated Digital Controller for Isolated Power  Digital power  Sample & Buy View Design Kits & Evaluation Modules
UCD3138A  UCD3138A Highly Integrated Digital Controller for Isolated Power  Digital power  Sample & Buy View Design Kits & Evaluation Modules
UCD3138A64  Highly-Integrated Digital Controller for Isolated Power  Digital power  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
TPS76201 Download Download
UCC25230 Download Download
UCC27211 Download Download
Download Download
Download Download
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UCC27524 Download Download
Download Download
Download -
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UCD3138 Download
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UCD3138064 Download
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UCD3138064A Download
UCD3138128 Download
UCD3138A Download
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UCD3138A64 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
PDF 1323 20 Aug 2013
Design files (4)
Title Abstract Type Size (KB) Date
ZIP 407 17 Jun 2014
PDF 413 17 Jun 2014
PDF 65 17 Jun 2014
PDF 199 20 Aug 2013

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