TPA3118 PBTL Mono Digital Audio Amplifier Board DC 8-24V
TPA3118 PBTL Mono Digital Audio Amplifier Board DC 8-24V
TPA3118 PBTL Mono Digital Audio Amplifier Board Module
Upgrade your audio projects with the TPA3118 PBTL Mono Channel Digital Audio Amplifier Module — a compact, high-efficiency amplifier board engineered for clean, powerful sound. Whether you're building a custom speaker system, a DIY hi-fi setup, or integrating audio into an electronics project, this mini amplifier board delivers outstanding performance in a remarkably small package.
Key Features
- High-Quality TPA3118 Amplifier Chip: Built around Texas Instruments' proven TPA3118 chip, this board delivers excellent audio clarity, low distortion, and impressive efficiency for its size.
- Wide Input Voltage Range: Compatible with DC 8V–24V power input, making it highly flexible and easy to integrate into a wide variety of systems and power configurations.
- PBTL Mono Channel Configuration: Operates in Parallel Bridge Tied Load (PBTL) mode, channeling full amplifier power into a single mono output for maximum drive capability.
- Compatible with 4Ω and 8Ω Speakers: Works seamlessly with standard 4-ohm and 8-ohm speakers, giving you broad speaker compatibility.
- Compact & Easy to Integrate: Measuring just 45 × 35 × 12 mm (1.8 × 1.4 × 0.5 in), this board is designed to fit neatly into enclosures, panels, and DIY builds.
- Digital Class-D Efficiency: Class-D amplifier design means minimal heat generation and excellent power efficiency — ideal for battery-powered or space-constrained applications.
Specifications
- Amplifier Chip: TPA3118
- Configuration: PBTL Mono Channel
- Input Voltage: DC 8V – 24V
- Speaker Impedance: 4Ω / 8Ω
- Amplifier Class: Class-D (Digital)
- Dimensions: 45 × 35 × 12 mm / 1.8 × 1.4 × 0.5 in
Who Is This For?
This amplifier module is perfect for electronics hobbyists, audio engineers, makers, and DIY enthusiasts who need a reliable, high-performance mono amplifier in a compact footprint. It's an ideal component for custom speaker builds, Raspberry Pi audio projects, Arduino integrations, and more.
Learn More About Audio Amplifier Technology
For technical background on Class-D audio amplifiers and digital audio electronics, visit the U.S. Department of Energy for resources on energy-efficient electronics design. You can also explore electronics standards at NIST (National Institute of Standards and Technology).
Frequently Asked Questions
Q: What is the TPA3118 PBTL Mono Digital Audio Amplifier Module used for?
A: The TPA3118 PBTL Mono Digital Audio Amplifier Module is a compact Class-D amplifier board designed for DIY audio builds, custom speaker systems, and electronics projects. It uses the TPA3118 chip to deliver clean, efficient mono audio output and is compatible with 4Ω and 8Ω speakers across a DC 8V–24V input range.
Q: What does PBTL mean, and how does it affect performance?
A: PBTL stands for Parallel Bridge Tied Load. In this mode, the amplifier's internal channels are combined to drive a single speaker output with maximum power, making it ideal for mono applications where high output and efficiency are priorities.
Q: What power supply do I need for this amplifier board?
A: The TPA3118 PBTL amplifier board supports a wide DC input voltage range of 8V to 24V, so it can be powered by common bench power supplies, battery packs, or dedicated DC adapters — giving you great flexibility for both portable and fixed installations.
Q: Is this module compatible with Raspberry Pi or Arduino projects?
A: Yes. The compact size and wide voltage compatibility of this amplifier board make it an excellent choice for Raspberry Pi, Arduino, and other single-board computer or microcontroller audio projects. Simply connect your audio signal input, power supply, and speaker to get started.