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PMP41079

Two-phase interleaved boost converter  reference design for Class-H audio amplifiers

Design files

PMP41079

Design files

Overview

This reference design demonstrates a 450-W, 2-phase interleaved boost converter reference design for the Class-H audio amplifier application. To provide supply to the external audio amplifier, the controller is able to follow the Class-H control signal from the amplifier and generate an output voltage which tracks the speaker amplitude. Therefore, minimized overall power consumption and losses can be achieved.

Features
  • Well-balanced internal current sharing between the two phase of the boost converter; power as well as thermal stress can be shared evenly with small board size         
  • 450-W converter 12-cm x 6.5-cm in size; high power and high power-density design         
  • Class-H control capable; boost output voltage is able to follow the speaker output amplitude to minimize power consumption as well as losses 
Output voltage options PMP41079.1 PMP41079.2
Vin (Min) (V) 9 3.3
Vin (Max) (V) 16 3.3
Vout (Nom) (V) 42 10
Iout (Max) (A) 10 .6
Output Power (W) 420 6
Isolated/Non-Isolated Non-Isolated Non-Isolated
Input Type DC DC
Topology Boost- Multiphase Boost- CCM
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Design files & products

Design files

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

download Test report — PMP41079
PDF | HTML
TIDT360.PDF (1534 KB)

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

download Assembly drawing — PMP41079
TIDMC40.PDF (350 KB)

Detailed overview of design layout for component placement

download Bill of materials (BOM) — PMP41079
TIDMC39.PDF (181 KB)

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

download CAD/CAE symbol — PMP41079
TIDMC42.ZIP (7394 KB)

Files used for 3D models or 2D drawings of IC components

download Gerber file — PMP41079
TIDCGJ0.ZIP (595 KB)

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

download PCB layout — PMP41079
TIDMC41.PDF (1241 KB)

PCB layer plot file used for generating PCB design layout

download Schematic — PMP41079
TIDMC38.ZIP (548 KB)

Detailed schematic diagram for design layout and components

Products

Includes TI products in the design and potential alternatives.

DC/DC converters

LM2735-Q1 — 520-kHz, 1.6-MHz space efficient boost and SEPIC DC/DC regulator, AEC-Q100 qualified

Data sheet: PDF | HTML
DC/DC controllers

LM5171-Q1 — Automotive, 80-V dual-channel bidirectional buck-boost controller

Data sheet: PDF | HTML
Comparators

TL331-Q1 — Automotive single differential comparator

Data sheet: PDF | HTML

Start development

Hardware development

Evaluation board

TAS6584Q1EVM —

TAS6584-Q1 evaluation module for 45-V, 10-A digital input, four-channel Class-D audio amp

This reference design demonstrates a 450-W, 2-phase interleaved boost converter reference design for the Class-H audio amplifier application. To provide supply to the external audio amplifier, the controller is able to follow the Class-H control signal from the amplifier and generate an output (...)

Supported products & hardware

Supported products & hardware

Hardware development
Reference design
PMP41079 — Two-phase interleaved boost converter  reference design for Class-H audio amplifiers

TAS6584Q1EVM —

TAS6584-Q1 evaluation module for 45-V, 10-A digital input, four-channel Class-D audio amp

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Reference design
PMP41079 — Two-phase interleaved boost converter  reference design for Class-H audio amplifiers
TI’s Standard Terms and Conditions for Evaluation Items apply.

Technical documentation

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Top documentation Type Title Format options Date
* Test report 2-Phase Interleaved Boost Converter Stage Ref. Des. for Class-H Audio Amplifier PDF | HTML Nov 8, 2023

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