TPA3122D2 15-W Stereo Class-D Audio Power Amplifier

Description

The TPA3122D2 is a highly efficient 15-W per channel Class-D audio power amplifier designed to deliver high-quality stereo sound with minimal heat generation. Perfect for hobbyists and DIY enthusiasts, this IC features a user-friendly 20-pin through-hole (DIP) package, making it easy to solder onto breadboards or prototyping PCBs. Its advanced Class-D technology is so efficient that it often eliminates the need for bulky external heat sinks when playing music, allowing for sleek and compact audio project designs. Whether you are building a custom stereo system or upgrading your desktop speakers, the TPA3122D2 provides a powerful, reliable, and easy-to-integrate solution for your next audio masterpiece.

FEATURES

• High Power Output: Delivers 15-W per channel into an 8-Ω load from a 28-V supply.

• Wide Voltage Range: Operates reliably on a supply voltage from 10 V to 30 V.

• High Efficiency: Efficient Class-D operation reduces power waste and heat.

• Selectable Gain: Features four fixed gain settings (20, 26, 32, and 36 dB) controlled by two select pins.

• Integrated Protection: Built-in thermal and short-circuit protection with an auto-recovery feature to prevent damage.

• Simplified Design: Internal oscillator requires no external timing components.

• Easy Prototyping: Housed in a standard 20-pin DIP through-hole package.

• Mute and Shutdown: Includes dedicated pins for quick mute and low-power shutdown modes.

Applications

• Televisions and monitors.

• Multimedia speaker systems.

• Portable audio docks and speakers.

• DIY home stereo and amplifier projects.

• Desktop and computer audio setups.

Parameters

• Supply Voltage ($V_{CC}$): 10 V to 30 V.

• Output Power ($P_O$): 15-W/ch into 8-Ω (at 28 V); 10-W/ch into 4-Ω (at 17 V).

• Package Type: 20-Pin DIP (Through-hole).

• Operating Temperature ($T_A$): –40°C to 85°C.

• Gain Settings: 20, 26, 32, and 36 dB.

• Quiescent Supply Current ($I_{CC(q)}$): 23 mA (Typical).

• Shutdown Current: < 1 mA.

• Total Harmonic Distortion + Noise ($THD+N$): 0.06% typical at 1-W into 8-Ω.