Automotive Boost Power Supply for Audio Applications
PMP9637
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Description & Features

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Description

The PMP9637 4-phase boost power supply enables high-efficiency boost dc/dc conversion of an 8.5V to 18V input Automotive battery voltage to 44V output at 17 Amperes in a compact form factor for Audio applications. The TPS40090 4-phase PWM controller is used with two (2) UCC27324D 4A dual FET drivers and CSD18534Q5A 60V NexFETs to deliver  748W output power in only 120mm x 70mm.

Features

• >95% Efficiency at 14VIN, 44Vout/7A.
• 120mmx70mm total power supply area
• 200mV pk-to-pk output voltage load transient response
• 10mV pk-pk output voltage 
• Smooth monotonic start up
• 4-phase interleaving enables lower input and ouput ripple current, faster load transient response, improved power handling capability, improved thermal performance, and higher reliability

  • >95% Efficiency at 14VIN, 44Vout/7A.
  • 120mmx70mm total power supply area
  • 200mV pk-to-pk output voltage load transient response
  • 10mV pk-pk output voltage
  • Smooth monotonic start up
  • 4-phase interleaving enables lower input and ouput ripple current, faster load transient response, improved power handling capability, improved thermal performance, and higher reliability


See the Important Notice and Disclaimer covering reference designs and other TI resources.


  



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Part Number Status

PMP9637:
Automotive Boost Power Supply for Audio Applications

ACTIVE

TI Devices (3)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CSD18534Q5A  60V, N ch NexFET MOSFETâ„¢, single SON5x6, 9.8mOhm  MOSFETs  Sample & Buy View Design Kits & Evaluation Modules
TPS40090  4 Channel Multiphase Buck DC/DC Controller  Step-down (buck) regulators  Sample & Buy View Design Kits & Evaluation Modules
UCC27324  Non-inverting 4-A/4-A dual-channel low side gate driver  Gate drivers  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CSD18534Q5A VSONP (DQJ)| 8 Download
TPS40090 Download Download
Download -
UCC27324 Download Download
Download Download
Download -
Download Download

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Technical documentation

See the Important Notice and Disclaimer covering reference designs and other TI resources.

User guides (1)
Title Type Size (KB) Date
PDF 1057 27 Oct 2014
Design files (5)
Title Type Size (KB) Date
PDF 102 21 Sep 2015
PDF 162 21 Sep 2015
ZIP 114 27 Oct 2014
ZIP 98 27 Oct 2014
ZIP 157 27 Oct 2014

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