TDA2008 is a 12W audio power amplifier from Texas Instruments (TI). It is designed for operation at 22V with a 4-ohm load. The device features very low harmonic and crossover distortion and is housed in a Pentawatt package. It also offers other features such as very low external component count, easy assembly, space and cost savings, high reliability, flexibility in use and thermal protection.
The TDA2008 is a monolithic class‑B audio power amplifier in a Pentawatt® package, designed for low‑impedance loads down to 3.2 Ω and capable of delivering up to 12 W. It offers high output current (up to 3 A repetitive), low harmonic distortion, and built‑in thermal protection, while requiring few external components.
The document includes typical application circuits, pin‑out, absolute maximum ratings, electrical and thermal characteristics, mechanical dimensions of the Pentawatt package, and practical assembly recommendations such as a maximum soldering temperature of 260 °C for 12 seconds.
| Supply voltage (Vs) range | 10 V – 28 V |
|---|---|
| Output peak current (repetitive) | 3 A |
| Output peak current (non‑repetitive) | 4 A |
| Power dissipation at Tcase = 90 °C | 20 W |
| Thermal resistance junction‑case | 3 °C/W |
| Input resistance (pin 1) | 70 kΩ – 150 kΩ |
| Closed‑loop voltage gain | 39.5 dB – 40.5 dB |
| Quiescent drain current | 65 mA – 115 mA |
| Maximum output power | 12 W into 40 Ω |
The device can be operated up to 28 V supply voltage.
It can deliver up to 12 W into a 40 Ω load.
The soldering temperature must not exceed 260 °C for 12 seconds.
The junction‑to‑case thermal resistance is 3 °C/W.