PMP8877

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

PMP8877

Design files

Overview

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

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDU052.PDF (1389 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more

TIDR010A.PDF (65 K)

Detailed schematic diagram for design layout and components

TIDR018.PDF (199 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDC470.ZIP (407 K)

Design file that contains information on physical board layer of design PCB

TIDR742.PDF (413 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Digital power isolated controllers

UCD3138Highly Integrated Digital Controller for Isolated Power with 3 Feedback Loops and 8 DPWM Outputs

Data sheet document-pdfAcrobat PDF open-in-new HTML
Digital power isolated controllers

UCD3138064Highly-Integrated Digital Controller for Isolated Power with 64kB Memory

Data sheet document-pdfAcrobat PDF open-in-new HTML
Digital power isolated controllers

UCD3138064AHighly Integrated Digital Controller for Isolated Power

Data sheet document-pdfAcrobat PDF open-in-new HTML
Digital power isolated controllers

UCD3138128Highly-Integrated Digital Controller for Isolated Power

Data sheet document-pdfAcrobat PDF open-in-new HTML
Digital power isolated controllers

UCD3138AUCD3138A Highly Integrated Digital Controller for Isolated Power

Data sheet document-pdfAcrobat PDF open-in-new HTML
Digital power isolated controllers

UCD3138A64Highly-Integrated Digital Controller for Isolated Power

Data sheet document-pdfAcrobat PDF open-in-new HTML
Half-bridge drivers

UCC272114-A, 120-V half bridge gate driver with 8-V UVLO and TTL inputs

Data sheet document-pdfAcrobat PDF open-in-new HTML
Isolated DC/DC converters & modules

UCC2523012V to 105V Input, 0.2A Output Switching Converter

Data sheet document-pdfAcrobat PDF
Linear & low-dropout (LDO) regulators

TPS76201100-mA, 10-V, low-IQ, adjustable low-dropout voltage regulator with enable

Data sheet document-pdfAcrobat PDF
Low-side drivers

UCC275245-A/5-A dual-channel gate driver with 5-V UVLO, enable, and 1-ns delay Matching

Data sheet document-pdfAcrobat PDF open-in-new HTML

Technical documentation

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Test report PMP8877 Test Results Aug. 20, 2013

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