Power Reference Design for 450W Automotive Audio Amplifier

(ACTIVE) PMP7837

Description & Features

Technical Documents

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Key Document

Description

The PMP7837 is a 4-phase synchronous boost converter that can take a 6-17V input and put out 24V at 450W. It is used for powering up to eight 50W automotive trunk amplifiers. The 4-phase synchronous design with 450kHz switching frequency per phase results in a compact and efficient circuit well suited for such applications.

Features
  • Mininum 6V input voltage supports US automotive cold cranking requirement
  • 96% peak efficiency at 12V input
  • 1.8MHz effective switching frequency
  • Ripple cancellation as a result of 4-phase design
  • Synchronous operation saves power and eases thermal design.

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


  




Parametrics
 PMP7837.1
(Output Voltage 1)
Vin (Min) (V)6
Vin (Max) (V)17
Vout (Nom) (V)24
Iout (Max) (A)15
Output Power (W)360
Isolated/Non-IsolatedNon-Isolated
Input TypeDC
TopologyBoost- Multiphase

TI Devices (3)

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 View 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
LM5122-Q1  Automotive Grade, 3-65V Wide Vin, Current Mode Synchronous Boost Controller with Multiphase Capabili  Step-Up (Boost)  Sample & Buy View Design Kits & Evaluation Modules

Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 541 14 Apr 2013 81
Design files (3)
Title Abstract Type Size (KB) Date Views
PDF 392 24 Jan 2018 154
PDF 28 20 Feb 2014 44
ZIP 1087 18 Feb 2014 60

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