PMP8877 Reference Design

Texas Instruments

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

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 moduleFeaturing Hard Switching Full Bridge power topology Secondary side control with integrated PMBUS commucationPre-biased start-up Fast Input Voltage Feed-forward
Applications
  • Baseband unit (BBU)
  • Merchant DC/DC
  • Active antenna system mMIMO (AAS)
  • Indoor backhaul
  • Macro remote radio unit (RRU)
Product Categories
  • Power management

Parts

Part Number Name Companion Part
TPS76201 TPS76201 Buy Datasheet
UCC25230 UCC25230 Buy Datasheet
UCC27211 UCC27211 Buy Datasheet
UCC27524 UCC27524 Buy Datasheet
UCD3138 UCD3138 Buy Datasheet
UCD3138064 UCD3138064 Buy Datasheet

Bill Of Materials

Download the bill of materials for PMP8877 Download

Schematic

Quickly understand overall system functionality.

Download the schematic for PMP8877

Test Data

Get results faster with test and simulation data that's been verified.

Download the test file for PMP8877

Other Documents

Title Updated Type Size (KB)
PMP8877 Gerber 17 Jun 2014 ZIP 407
PMP8877 PCB 17 Jun 2014 PDF 413
PMP8877 Schematic (Rev. A) 17 Jun 2014 PDF 65
PMP8877 BOM 20 Aug 2013 PDF 199