TPA2028D1 is a TI launched 3W mono filter-free Class-D audio power amplifier with volume control, dynamic range compression (DRC) and automatic gain control (AGC). It supports I2C interface configuration DRC/AGC parameters, which can realize automatic prevention of distortion, enhancement of details, protection of speakers and compression of dynamic range.
The TPA2028D1 is a mono, filter‑free Class‑D audio power amplifier that integrates programmable dynamic‑range compression (DRC), automatic gain control (AGC) and digital volume control. It delivers up to 3 W into a 4 Ω load at 5 V (10 % THD+N) and 880 mW into 8 Ω at 3.6 V, making it suitable for portable devices such as handsets, PDAs, USB speakers and notebook PCs.
The device operates from a 2.5 V‑5.5 V supply, consumes only 1.8 mA in normal operation and 0.2 µA in shutdown, and offers a high PSRR of 80 dB. It is offered in a 1.63 mm × 1.63 mm Nano‑Free wafer‑scale (WCSP) package and includes built‑in short‑circuit and thermal protection.
| Maximum output power (4 Ω, 5 V) | 3 W (10 % THD+N) |
|---|---|
| Maximum output power (8 Ω, 3.6 V) | 880 mW (10 % THD+N) |
| Supply voltage range | 2.5 V to 5.5 V |
| Low supply current (active) | 1.8 mA |
| Shutdown quiescent current | 0.2 µA |
| Gain range | -28 dB to +30 dB (1‑dB steps) |
| Power‑supply rejection ratio (PSRR) | 80 dB |
| Package | 1.63 mm × 1.63 mm Nano‑Free WCSP |
The device operates from 2.5 V to 5.5 V.
The shutdown quiescent current is 0.2 µA.
It can deliver up to 3 W with 10 % THD+N.
It is offered in a 1.63 mm × 1.63 mm Nano‑Free wafer‑scale (WCSP) package.