The TPA6043A4 is a stereo audio power amplifier and DirectPath™ headphone amplifier with fully differential architecture and high PSRR. It is capable of delivering 2W power continuously into 4-ohm loads at 5V voltage, and has a built-in 4-step gain control for the speaker amplifier and a fixed -1.5V/V gain for the headphone amplifier, minimizing the need for external components.
The TPA6043A4 is a 2‑W stereo audio power amplifier with an integrated DirectPath™ headphone amplifier, offered in a 32‑pin QFN package. It delivers up to 2 W per channel into 4‑Ω speakers and 85 mW into 16‑Ω headphones from a 5 V supply, with independent shutdown controls and built‑in gain settings.
The document includes detailed electrical characteristics, absolute maximum ratings, typical performance graphs, pin descriptions, package layout guidance, and recommended operating conditions to aid designers in implementing the device in notebook computers, portable DVD players, and other audio applications.
| Supply voltage range | 0.3 V to 6 V |
|---|---|
| Operating temperature range | -40 °C to 85 °C (free‑air) |
| Gain control steps (speaker) | 6 dB, 10 dB, 15.6 dB, 21.6 dB |
The device can be powered from 0.3 V up to 6 V on all supply pins.
The device is rated for an operating free‑air temperature range of –40 °C to 85 °C.