TPA6021A4 2-W Class-AB Stereo Audio Power Amplifier with DirectPath™ Headphone Design

Description

Upgrade your DIY audio projects with the TPA6021A4, a high-performance stereo audio power amplifier from Texas Instruments. This IC is a favorite among hobbyists for its ability to deliver a clean 2 Watts of continuous average power into a 4-$\Omega$ load with minimal distortion. One of its standout features is the integrated DirectPath™ headphone amplifier, which eliminates the need for bulky DC-blocking output capacitors, saving you valuable space on your PCB and improving low-frequency response. Packaged in a hobbyist-friendly through-hole DIP format, this IC is perfect for breadboarding and custom amplifier builds where high-quality stereo sound and ease of assembly are top priorities.

FEATURES

• High Power Output: Delivers 2-W per channel into 4-$\Omega$ loads at 5V.

• DirectPath™ Technology: Integrated headphone amplifier eliminates the need for large output-coupling capacitors.

• Low Distortion: Features a low THD+N (Total Harmonic Distortion plus Noise) for crisp, clear audio.

• Shutdown Control: Includes a low-current shutdown mode ($<10\mu A$) to conserve power in battery-operated devices.

• Depop Circuitry: Advanced pop reduction circuitry minimizes clicks and pops during power-up or switching.

• Through-Hole Friendly: Available in a standard DIP package, making it easy to solder and prototype.

• Thermal Protection: Internal thermal and short-circuit protection to prevent damage during accidental overloads.

Applications

• Portable Speakers: Build your own battery-powered stereo speaker systems.

• Gaming Consoles: Enhance the audio of handheld or DIY arcade cabinets.

• Multimedia PCs: Create custom audio solutions for desktop or laptop setups.

• Headphone Amplifiers: Design high-quality headphone drivers without bulky capacitors.

• LCD Monitors: Integrated audio for display projects and smart screens.

Parameters

• Supply Voltage (Vcc): 4.0V to 5.5V.

• Output Power (Po): 2.0W per channel (into 4 $\Omega$ @ 5V).

• Total Harmonic Distortion (THD+N): 0.06% at 1W (into 8 $\Omega$ @ 1kHz).

• Supply Current (Icc): 6.5 mA (typical).

• Shutdown Current: less than 10 uA (typical).

• Package Type: Through-hole PDIP (N) or TSSOP (PWP).

• Operating Temperature: –40°C to 85°C.