Texas Instruments TPA6021A4 2‑W Stereo Audio Power Amplifier Datasheet

About this manual

The TPA6021A4 delivers 2 W per channel into a 4‑Ω load when used with an external heatsink. It features advanced DC volume control that provides 2‑dB steps from –40 dB to +20 dB, a fade mode for smooth transitions, and a mute mode down to –85 dB. Differential inputs and a dedicated headphone mode give flexibility for a range of audio applications such as LCD monitors.

The device is supplied in a 20‑pin PDIP package (TPA6021A4N) and operates from a 4 V to 5.5 V supply. Key electrical characteristics include a typical shutdown current of 1 µA, high‑level input voltage range of 0‑8 × Voo, and THD+N below 0.8 % for BTL operation. Mechanical data and a detailed pin‑out diagram are provided for PCB layout and integration.

What's inside

• Features
• Applications
• Description
• Package Options
• Absolute Maximum Ratings
• Recommended Operating Conditions
• Electrical Characteristics
• Operating Characteristics
• Functional Block Diagram
• Terminal Functions

Specifications

Frequently asked questions

How is volume controlled on the TPA6021A4?

Volume is set by a DC voltage on the VOLUME pin, giving 2‑dB steps from –40 dB to +20 dB and supporting fade and mute modes.

What supply voltage does the TPA6021A4 require?

The recommended supply voltage (Vss) is between 4 V and 5.5 V.