The TPA6041A4 is a stereo audio power amplifier and DirectPath™ headphone amplifier in a thermally enhanced, space-saving, 32-pin QFN package. The speaker amplifier is capable of driving 2.1 W per channel continuously into 4-Ω loads at 5 V. The headphone amplifier achieves a minimum of 85 mW at 1% THD+N from a 5-V supply.
The TPA6041A4 is a 2‑W stereo audio power amplifier packaged in a 32‑pin QFN. It combines a speaker amplifier capable of 2.1 W into 4‑Ω loads and a DirectPath™ headphone amplifier delivering 85 mW into 16‑Ω loads, both from a 5‑V supply. The device features a fully differential architecture, high PSRR, and built‑in 4‑step speaker gain control (10, 12, 15.6, 21.6 dB).
Designed for notebook computers and portable DVD players, the TPA6041A4 includes independent shutdown controls for the speaker, headphone, and LDO, as well as output short‑circuit and thermal protection. Electrical specifications such as supply voltage ranges, output power, THD+N, and startup time are provided for system designers.
| Supply voltage (HPVDD, CPVDD) | 3 V – 5.5 V |
|---|---|
| Supply voltage (VDD, SPVDD) | 4.5 V – 5.5 V |
| Speaker gain control steps | Four steps: 10, 12, 15.6, 21.6 dB |
| Regulator output voltage | 3.3 V |
| Startup time from shutdown | 5 ms |
| Protection features | Output short‑circuit and thermal protection |
The device operates from 3 V to 5.5 V on HPVDD/CPVDD and from 4.5 V to 5.5 V on VDD/SPVDD.
The speaker amplifier provides four internal gain steps: 10, 12, 15.6, and 21.6 dB.
Yes, it has independent shutdown controls for the speaker, headphone amplifier, and the 3.3‑V LDO.