TPA3116D2 Digital Power Amplifier Board XY-502 2 x 50 W Stereo Amplifier

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The TPA3116D2 Digital Power Amplifier Board XY-502 is a compact stereo amplifier module based on the TPA3116D2 audio amplifier IC. It uses Class D technology to deliver high efficiency, low heat generation and excellent audio performance. Although often marketed as a digital amplifier, the audio signal remains analog throughout the signal path. The Class D output stage uses high frequency PWM switching to achieve high output power with minimal power loss.

The module is ideal for DIY audio projects, active speakers, Bluetooth speakers, desktop speakers, TV audio systems, car audio and many other audio applications where high output power and low power consumption are important.

A built in volume control allows convenient adjustment directly on the board. Audio input is available through both a 3.5 mm stereo jack and a 3 pin screw terminal. These inputs are connected in parallel and are intended for the same line level audio source. Only one audio source should be connected at a time.

The speaker outputs use a BTL configuration with separate positive and negative terminals for each channel. The negative speaker terminals are not ground and must not be connected together or connected to chassis ground.

The board includes four power inductors marked 100, corresponding to 10 µH. Together with the capacitors they form the LC output filter that removes the high frequency PWM switching signal before the audio reaches the speakers.

The TPA3116D2 includes built in protection against short circuit, over current, over voltage, under voltage and over temperature. Thanks to its high efficiency, the amplifier generates much less heat than traditional Class AB amplifiers, making it suitable for compact installations.

Facts.
Model: XY-502
Amplifier IC: TPA3116D2
Amplifier class: Class D
Channels: Stereo 2.0
Maximum output power: 2 x 50 W
Supply voltage: DC 4.5 to 27 V
Recommended supply voltage: 19 to 24 V DC
Signal to noise ratio: 102 dB
Audio input: 3.5 mm stereo jack and 3 pin line input screw terminal
Audio inputs: Connected in parallel, only one audio source should be connected
Speaker output: BTL, L+, L-, R+, R-
Volume control: Yes
Output filter: LC filter with four 10 µH inductors
Protection functions: Short circuit, over current, over voltage, under voltage and over temperature
Efficiency: Up to approximately 90 percent
Applications: Bluetooth speakers, active speakers, desktop speakers, TV audio, car audio and DIY projects
Dimensions: 63 x 51 x 22 mm

Included.
1 pc module.

About the product.
Weight: approx 53 gram.
Contact us if you have questions at info@pchbutik.se
Article no: 3539
Remaining stock quantity can be found under the Product details tab.
In our range since: 2026-08-17

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