Public Announcement Audio Reference Design utilizing best in class Boost Controller
PMP10710
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Key Document

Description

PMP10710 is a 200W design for public announcement audio system which can be used in 100W +100W Stereo or 200W Woofer Applications. The design is broadly divided into four main stages:

  1. Single-Phase Synchronous Boost Converter using the LM5122 controller IC.  The design accepts an input voltage of 10V to 15 VIN (12 VIN Nominal) and provides an output of 30V capable of supplying 6.5A of continuous current to the load.
  2. 100W + 100W Stereo Audio Amplifier with TAS5611 Class D device.
  3. Single ended to differential conversion (with active low pass filter) for Stereo inputs using OPA1632 differential amplifier.
  4. Simple Switcher LM16006 is used for all Aux supply needs.

Features
  • Synchronous Rectification in Boost for very High Efficiency
  • Ultra Low Footprint Area for LM5122 Actual Power Stage
  • Single Speaker (Woofer), Dual Speaker(Stereo) Support in the design
  • Free-Run/Synchronizable Switching to 1 MHz in Boost device
  • Single ended input to differential conversion for TAS5611 Amp inputs

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Schematic/Block Diagram

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Design Files

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Parametrics
 PMP10710.1
(Output Voltage 1)
Vin (Min) (V)10
Vin (Max) (V)15
Vout (Nom) (V)30
Iout (Max) (A)6.5
Output Power (W)195
Isolated/Non-IsolatedNon-Isolated
Input TypeDC
TopologyBoost- Synchronous

TI Devices (4)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
LM5122  3-65V Wide Vin, Current Mode Synchronous Boost Controller with Multiphase Capability  Step-up (boost)  Sample & Buy View Design Kits & Evaluation Modules
LMR16006Y-Q1  Automotive Qualified SIMPLE SWITCHER® 40V (65V transient), 0.6A Buck Regulator with 28μA IQ  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules
OPA1632  Fully Differential I/O Audio Amplifier  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
TAS5611A  125-W stereo & 250-W Mono PurePath™ HD analog-input power stage  Audio amplifiers  Sample & Buy Not Available

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
LM5122 Download Download
Download -
LMR16006Y-Q1 Download Download
OPA1632 Download Download
Download Download
TAS5611A Download Download

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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 4207 04 Sep 2015
Design files (4)
Title Type Size (KB) Date
ZIP 578 04 Sep 2015
PDF 27 04 Sep 2015
PDF 225 04 Sep 2015
PDF 489 04 Sep 2015

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