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TPA3251-2CH-140W

Amplifier Kits

 

TPA3251 2ch

PurePath™ Ultra-HD

Class D Audio Amplifier

 

 This Product not available anymore please consider TPA3255

Overview

EAUMT-0140-2-A is a 2 channel (BTL) high quality class D audio amplifier module base on TPA3251 with customized design and mainly suit for both consumer and professional project.
TPA3251 is a high performance class-D power amplifier that enables true premium sound quality with class-D efficiency. It features an advanced integrated feedback design and proprietary high speed gate driver error correction (PurePath™ Ultra-HD). This technology allows ultra low distortion across the audio band and superior audio quality. The device can drive up to 2 x 175 W into 4-Ω load and 2 x 220 W into 3-Ω load.
In addition to excellent audio performance, TPA3251 achieves both high power efficiency and very low power stage idle losses below 1 W. This is achieved through the use of 60 mΩ MOSFETs and an optimized gate driver scheme that achieves significantly lower idle losses than typical discrete implementations.
With improved design to obtain highest performance and lowest noise and distortion, this module provide an excellent audio solution that highly compact and efficiency with state-of-the-art performance.

 

Key Features

  • < 65uV Output Noise (AES17,A-weighted)
  • 140W @ 1% THD+N, 1kHz, 4Ω
  • 175W @ 10% THD+N, 1kHz, 4Ω
  • 111dBA dynamic range
  • THD+N < 0.01%, 0.3W – 125W, 4Ω
  • 90% Efficient Class-D Operation (4 Ω)
  • Fully differential layout design for lowest noise and distortion
  • Very Compact size(105mm*90mm*38.5mm – L*W*H)
  • Additional power ON/OFF reset circuit for Pop noise suppression
  • BTL configuration only for best audio performance
  • AUX Power Supply Output(12V/0.2A) for DSP Pre Amplifier
  • Single supply voltage range 24V~36V(UVP:24V)

 

Applications

  • Active Loudspeakers and Power Subwoofers
  • Installation audio products
  • High-end stereo and multi-channel amplifiers
  • Bluetooth & Wi-Fi Audio Product
  • Sound bars, Docking, Radios
  • Home Theater System & AVR’s

 

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ICE2QS03G-200W-36V

Power Supply

 

ICE2QS03G

200W-36V

Quasi-Resonant Power Supply

 

Overview

  • EAPST-0200-2-A is a Quasi-Resonant Flyback Switch Mode Power Supply module with high efficiency, low noise specifically design for 100W – 300W class D audio amplifier system.
  • By using State-of-the-art Quasi Resonance current mode flyback controller and CoolMOS FET analog with innovative protection features for superior safety and reliability in operation, the result is getting a cost effective design.

Key Features

  • Infineon QR+CoolMOS solution: ICE2QS03G+SPA11N80C3
  • Cycle by cylce peak current limitation
  • Higher efficiency,Low noise and Low standby power
  • Compact size(105mm*100mm*35mm – L*W*H)
  • Additional AUX VCC(12V/0.5A,typically) for extended design

Board Setup

  • Below show the detail setup of this SMPS Board,including high voltage side(Primary/Left side) and Low voltage side(Secondary/Right side).
  • AC IN is the AC high voltage input(100V~220V) from AC line socket.
  • PVDD is the main output for power amplifier board.
  • AUX VCC is the auxiliary output for other application like pre-amplifier,DSP,etc.

Appendix Picture

  • Full assembly board

 

  • Top side

 

  • Safety Precautions,please understand the requirement before starting assembly