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Mid Power(30-300W per channel)

1 x 100Watt Class D Audio Amplifier Board - TPA3116[445]

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Mean Well LRS-350-36 36V 350W AC/DC Switching Power Supply




This is a mono audio amplifier board with mid output power as 100W into a 2Ohm load based on Class D topology and TI’s TPA3116 chip, featuring low power consumption as 0.07W in standby mode and high efficiency up to 95%. Compact size, easy installation and mid-power output makes this audio amplifier board suitable for home audio, DIY audio, toy audio, desktop audio and demanding industrial applications. A DC10V – 24V power supply is required.

High Quality Audio Performance

By means of dedicated PCB layout design and engineers’ attentive debugging, this low power audio amplifier board features high audio performance, whose SNR reaches up to 99dB and THD+N performs well as 0.05% @ 2Ohm, 1W, 1kHz.

High Reliability and Long Service Time

An optimized heatsink is mounted atop the board for better heat dissipation, which improves its reliability and provides enough cooling for various applications. Full protection circuit, like over temperature protection and overcurrent protection, is equipped on this board for high reliability and long service time. Input reverse polarity protection is also employed in this audio amplifier to ensure operation safety.

Easy for Installation

Four screw holes provided make this amplifier board easy for installation and quick for integration in any cabinet. Essential terminal interfaces for normal use are pre-mounted on the board, all you need to do is to plug in cables for connection, without any demand of soldering, which is swift and convenient. If you want all the interfaces, please contact us. MOQ would be required. Power indicator is provided on board for customers to have an overview of the power condition of the amplifier board. This board supports standby and mute function, you can simply control your audio system. In compact size as 3.6’’ x 2.7’’, this audio amplifier board can be easily integrated into any audio projects without occupation of too much space.

Package Includes

1pc AA-AB31184

  • StyleBoards
  • Number Of Channel(s)1
  • Output Power100
  • Size3.6 x 2.7 inches (91.44mm x 68.58mm)
  • ChipsetTPA31xx
  • Heat DissipationHeat Sink
  • Supported Parallel Bridge Tied Load Mode/
  • inputSingle ended Line-in,
  • Power Voltage10V-24V
  • Output Power
  • 100W@2Ohm 21V DC THD+N 10%
  • 87W@2Ohm 21V DC THD+N 1%
  • Power Indicator
  • Negative Heat Dissipation
  • Over current Protection
  • Over temperature Protection
  • Input Reverse Polarity Protection
  • Optimized Heatsink Design
  • Mute and Standby Function
  • 4-screw Easy Installation
  • Weight: 225g/ 0.50 lbs (±10%)
  • Size:3.60 x 2.70 x 0.93 inches
ParameterConditionsMin.Typ. Max.Units
Power Supply-102124VDC
Idle PowerSD Floating    -1.1-W
Standby PowerSD Connected to GND-0.07-W
Maximum Current 100W @ 2Ohm -5.3-A
Efficiency100W @ 2Ohm -89-%
Minimum Load Impedance--1.6-Ω
Switching FrequencySD Floating- 398-KHz
Input Sensitivity(RMS)@2Ω, 100W, 1KHz-0.83-V
Input Impedance--30-
Output Power@2Ω THD+N 1%-87-W
@2Ω THD+N 10%-100-W
Bandwidth @ ±3dB@2Ω20-20K   Hz
THD@2Ω, 1W, 1KHz-0.05-%
@2Ω, 10W, 1KHz-0.07-%
Output Noise LevelA-weighting,Input Connected to GND       -109-µV
SNR87W @2Ω THD+N 1%-99-dB







20 Oct 2022

What is the rated power when driving a 8ohm speaker ?

Hello, Pierre. Thank you for your interest in our products. The output power of this 1x100W-TPA3116 is around 27W when driving an 8Ohm speaker with a DC21V power supply. Wish this could help you. Have a nice day~

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