The TDA2008 is a monolithic class B audio power amplifier designed for driving low impedance loads. It provides a high output current capability, very low harmonic and crossover distortion. The device offers features such as few external components, easy assembly, space and cost saving, high reliability, flexibility in use, and thermal protection.
The TDA2008 audio amplifier is a monolithic class‑B device packaged in a Pentawatt® case, intended for low‑impedance loads down to 3.2 Ω. It provides high output current (up to 3 A), low harmonic distortion, and integrated thermal protection, making it suitable for compact audio applications such as car radios.
The datasheet lists absolute maximum ratings, electrical characteristics, and typical application circuits. Key parameters include a supply voltage range of 10‑28 V, a maximum power dissipation of 20 W at 90 °C case temperature, and a junction‑case thermal resistance of 3 °C/W. Practical layout and assembly guidelines are also provided.
| Supply voltage (Vs) | 10‑28 V |
|---|---|
| Output peak current (repetitive) | 3 A |
| Power dissipation at Tcase = 90 °C | 20 W |
| Thermal resistance junction‑case | 3 °C/W |
| Voltage gain (closed loop) | ≈40 dB |
| Input resistance (pin 1) | 70 kΩ (typical) |
The maximum DC supply voltage is 28 V.
The soldering temperature must not exceed 260 °C for 12 seconds.
The maximum junction‑case thermal resistance is 3 °C/W.