Universal Input to 3.3V, 12V, 36V, 200W Continuous PSU for Class-D Amplifier Reference Design

(ACTIVE) PMP10215

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Key Document

Description

This power module generates all voltages to supply a class-D audio amplifier. The main output voltage is 36V and delivers 200W continuously and 840W peak. The first stage is a power-factor corrected Boost. A Flyback converter supplies 12V on primary side as well as 12V@300mA and 3.3V@200mA on secondary side. A hardware switch + remote input let the converter enter in stand-by mode: in this status the 36V output is disabled and 12V, 3.3V are "always on". This way the stand-by power is reduced down to 150mW @ 115Vac and 270mW @ 230Vac. A second digital input switches the main output voltage from 36V to 18V, allowing low current consumption mode in case of the audio amplifier needs less power.

Features
  • Low cost PFC + 2-switch forward topology provides 200W average, 840W peak power
  • Constant switching frequency: particularly suitable for audio applications
  • Simple thermal inteface: two small heat-sinks placed on one side of the board
  • Good plug-to-plug efficiency: 84% @ 115Vac, 86% @ 230Vac
  • Compact construction: 126mm x 145mm, height 35mm

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Design Files

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Bill of Materials (BOM)

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Parametrics
 PMP10215.1
(Output Voltage 1)
PMP10215.2
(Output Voltage 2)
PMP10215.3
(Output Voltage 3)
PMP10215.4
(Output Voltage 4)
Vin (Min) (V)8512010350
Vin (Max) (V)26443014430
Vout (Nom) (V)400123.336
Iout (Max) (A).55.3.215
Output Power (W)2203.6.66540
Isolated/Non-IsolatedNon-IsolatedIsolatedNon-IsolatedIsolated
Input TypeACDCDCDC
TopologyBoost- CCMFlyback- DCMBuck- SynchronousForward- 2 Switch

TI Devices (11)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
LM5021  AC-DC Current Mode PWM Controller  Offline & isolated DC/DC controllers & converters  Sample & Buy Not Available
LMV431A  Low-Voltage (1.24V) Adjustable Precision Shunt Regulators  Voltage references  Sample & Buy Not Available
SN74LVC1G17  Single Schmitt-Trigger Buffer  Buffer/driver  Sample & Buy View Design Kits & Evaluation Modules
TL431A  1% Accuracy Adjustable Precision Shunt Regulator  Voltage references  Sample & Buy Not Available
TMP709  Resistor-Programmable Trip Point Temperature Switch  Temperature sensors  Sample & Buy View Design Kits & Evaluation Modules
TPA3250  70W Stereo / 130W Peak Ultra-HD, Analog-In, Pad-Down Class-D Amplifier  Audio amplifiers  Sample & Buy View Design Kits & Evaluation Modules
TPA3251  175W Stereo / 350W Mono Ultra-HD, Analog-In Class-D Amplifier  Audio amplifiers  Sample & Buy View Design Kits & Evaluation Modules
TPA3255  315W Stereo / 600W Mono Ultra-HD, Analog-In Class-D Amplifier  Audio amplifiers  Sample & Buy View Design Kits & Evaluation Modules
TPS560200  17V Input, 500mA Synchronous Step-Down Regulator in SOT-23 with Advanced Eco-Mode™  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules
UCC27714  High-Speed, 4-A, 600-V High-Side Low-Side Gate Driver  Gate Drivers  Sample & Buy View Design Kits & Evaluation Modules
UCC28180  8-Pin Continuous Conduction Mode (CCM) PFC Controller  Offline & isolated DC/DC controllers & converters  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
LM5021 Download Download
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LMV431A Download Download
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SN74LVC1G17 Download -
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Download
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TL431A Download Download
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Download -
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Download -
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TMP709 Download
TPA3250 Download Download
TPA3251 Download Download
TPA3255 Download Download
TPS560200 Download Download
UCC27714 Download -
UCC28180 Download

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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 1929 03 May 2016 54
Design files (6)
Title Abstract Type Size (KB) Date Views
ZIP 1944 07 Oct 2016 11
PDF 845 07 Oct 2016 55
ZIP 391 03 May 2016 18
PDF 1158 03 May 2016 10
PDF 1182 03 May 2016 8
PDF 181 03 May 2016 11
More literature (1)
Title Abstract Type Size (KB) Date Views
PDF 2960 01 Dec 2017 104

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