~TPMP9484|en|Highly Efficient and Compact 100W Automotive
Amplifier Reference Design with Boost Converter|0|0|1453748718627

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Highly Efficient and Compact 100W Automotive Amplifier Reference
Design with Boost Converter

Highly Efficient and Compact
100W Automotive Amplifier Reference Design with Boost Converter

(ACTIVE)
PMP9484

Description
& Features

Technical
Documents

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& Community

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Description

PMP9484 is a 100W highly efficient and compact automotive amplifier reference
design which can be used in 50W +50W stereo or 100W woofer applications.
The design is broadly divided into three main stages:
1.) Highly efficient
single-phase synchronous boost converter using the LM5122 controller IC.
The design accepts an input voltage of 7.5Vin to 20Vin (12Vin nominal) and
provides an output of 24V capable of supplying 5A of continuous current to the
load.  The peak efficiency acheived is 98 percent.
2.) 50W+ 50W stereo
audio amplifier with TPA3116D2 Class D device
3.) Very low cost stereo input
to woofer bass input conversion

Features

Synchronous rectification in boost for very high efficiency

Ultra-low footprint area for LM5122

Actual power stage combo with highly efficient class D amplifier

Single speaker (woofer), dual speaker (stereo) support in the design

Low Vin support for automotive application

TI's Standard Terms and Conditions for Evaluation Modules
apply.

Parametrics

PMP9484

Vin (Min) (V)

6.5

Vin (Max) (V)

20

Vout (Nom) (V)

24

Iout (Max) (A)

5

Output Power (W)

120

Isolated/Non-Isolated

Non-Isolated

Input Type

DC

Topology

Boost- Synchronous

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TI Devices (7)

Order samples, get tools and find more information on the TI products in this
reference design.

Part Number

Name

Product Family

Sample & Buy

Design Kits & Evaluation Modules

CSD18501Q5A

40V N-Channel NexFET Power MOSFETs, CSD18501Q5A

Power MOSFET

Sample & Buy

Not Available

LM324

Quadruple Operational Amplifier

Operational Amplifier (Op Amp)

Sample
& Buy

View Design Kits & Evaluation Modules

LM5122

3-65V Wide Vin, Current Mode Synchronous Boost Controller with
Multiphase Capability

Controller (External Switch)

Sample
& Buy

View Design Kits & Evaluation Modules

TAS5404-Q1

26-W Analog Single-Ended Input 4-Ch Class-D Amp w/Load Dump Protection
and I2C Diagnostics

Audio

Sample & Buy

View
Design Kits & Evaluation Modules

TPA3116D2

50-W Stereo (BTL) Class-D Audio Amp w/ SpeakerGuard™

Audio

Sample & Buy

View
Design Kits & Evaluation Modules

TPA3116D2-Q1

2-Ch, 50-W Analog Input Class-D Audio Amplifier

Audio

Sample & Buy

View Design Kits & Evaluation Modules

TPA3118D2-Q1

2-Ch, 30-W Analog Input Class-D Audio Amplifier

Audio

Sample & Buy

View Design Kits & Evaluation
Modules

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Technical Documents

User guides (1)

Title

Abstract

Type

Size (KB)

Date

Views

PMP9484 Test
Results

PDF

3804

29 Sep 2014

240

Design files (3)

Title

Abstract

Type

Size (KB)

Date

Views

PMP9484
Gerber

ZIP

375

29 Sep 2014

130

PMP9484 BOM

PDF

32

29 Sep 2014

313

PMP9484 Schematic

PDF

698

29 Sep 2014

391

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