The TDA1908 is an audio amplifier. It has flexibility, protection against chip overtemperature, soft limiting, low switch-on noise, low number of external components, high supply voltage rejection, and very low noise.
The TDA1908 is a monolithic 8 W audio amplifier integrated circuit supplied in a 12‑lead quad‑in‑line package. It offers a wide supply voltage range, high output current capability, low noise, and built‑in protection features such as over‑temperature shutdown and soft limiting.
The document details absolute maximum ratings, electrical characteristics, pin‑out diagrams, test and application circuits, as well as mechanical dimensions. It also includes performance graphs for output power, distortion, efficiency, and supply‑voltage rejection, helping designers integrate the device into low‑frequency power applications.
| Supply voltage range | 4 V to 30 V |
|---|---|
| Maximum output current (repetitive) | 3 A |
| Maximum output current (non‑repetitive) | 3.5 A |
| Power dissipation at 80 °C | 1 W |
| Junction temperature range | -40 °C to 150 °C |
| Thermal resistance junction‑ambient | 70 °C/W |
| Quiescent output voltage at Vs=4 V (typ) | 2.1 V |
The maximum supply voltage is 30 V.
The device can deliver up to 3 A of repetitive output current.
Yes, it provides protection against chip over‑temperature.
The absolute maximum supply voltage rating is 30 V.