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Pricelist: Retail Price (B2C) Pricelist
TPA3118 PBTL Mono Digital Audio Amplifier Board – 60W High-Power Class D Module (DC 12V-24V) for DIY Active Speakers and Subwoofers

TPA3118 PBTL Mono Digital Audio Amplifier Board – 60W High-Power Class D Module (DC 12V-24V) for DIY Active Speakers and Subwoofers

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ParameterDetailed Specification
Amplifier ChipTPA3118 (Class D Architecture)
Channel ConfigMono (PBTL Mode)
Output Power60W (Peak)
Operating VoltageDC 12V to 24V
Speaker Impedance4Ω to 8Ω Compatible
Efficiency> 90%
Price
₹ 139.83 ₹ 139.83
(Tax included)

Product Description

The TPA3118 PBTL Mono Digital Amplifier Board is a high-performance, compact audio module designed to drive a single high-power speaker with exceptional clarity. By utilizing the PBTL (Parallel Bridge Tied Load) configuration, this board merges the output power to deliver up to 60W from a single channel. Its Class D design ensures extremely high power efficiency, making it an ideal choice for building DIY active subwoofers, professional PA systems, or upgrading single-speaker automotive audio setups. The small footprint and low heat generation make it perfect for integration into tight enclosures where space is at a premium.

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Detailed Key Features

  • High-Power Mono Output: Delivers a robust 60W output, specifically tuned to drive larger single-unit speakers and subwoofers with high current.

  • Energy-Efficient Class D: Operates with over 90% efficiency, significantly reducing energy waste and minimizing the need for large, bulky heatsinks.

  • PBTL Circuit Design: Parallel bridge configuration ensures higher stability and power delivery compared to standard stereo modules used in mono mode.

  • Broad Voltage Compatibility: Functions reliably across a wide DC input range of 12V to 24V, compatible with common power adapters and battery packs.

  • Advanced Protection Suite: Features integrated safeguards including over-voltage, under-voltage, overheating, and DC detection to protect both the module and your speakers

Brief Technical Details

  • Signal Integrity: Engineered for low distortion and high Signal-to-Noise Ratio (SNR) for professional-grade audio reproduction.

  • Switching Frequency: High-frequency switching minimizes electromagnetic interference (EMI) and ensures a clean audio signal.

  • Thermal Management: Optimized PCB layout and high-quality components ensure stable performance during continuous high-load operation.

  • Interface: Features easy-to-use screw terminals for power and speaker connections, plus a 2-pin header for audio input.

  • Dimensions: Ultra-compact design (~45mm x 35mm), allowing for versatile placement in custom builds.

Prototyping & Engineering Tips (Robogears Exclusive)

  • Power Supply Selection: To reach the full 60W output, a 24V 3A DC power supply is highly recommended. Using a 12V supply will limit the output power significantly.

  • Subwoofer Applications: This mono board is excellent for powering a dedicated subwoofer. Pair it with a low-pass filter (LPF) circuit for the best bass performance.

  • Wiring Precautions: Always ensure the speaker impedance matches the output (4–8 ohms). Using a speaker with lower than 4 ohms at high voltage may trigger the thermal protection.

  • Input Level: If the input audio signal is too weak (e.g., directly from some smartphones), you may need a pre-amplifier stage to achieve the maximum 60W volume.

Package Includes

  • 1 x TPA3118 PBTL Mono Digital Audio Amplifier Board (60W)

Image Disclaimer

Image shown is for illustrative purposes only; the actual product may vary slightly in design, color, or component layout due to manufacturing updates, though all technical specifications will remain as described.