TDA2040 is a 20W power audio amplifier that includes short circuit protection and thermal shutdown systems, and has an output power of up to 22W with very low harmonic and crossover distortion.
The TDA2040 is a monolithic integrated circuit in a Pentawatt® package designed for Class‑AB audio amplification. It delivers up to 22 W output power at 32 V supply, incorporates a patented short‑circuit protection system and a thermal shut‑down feature to keep the output transistors within their safe operating area.
The datasheet lists absolute maximum ratings, detailed electrical characteristics such as supply voltage, input bias current, output power, and gain, as well as mechanical dimensions of the package. It also includes typical application schematics, pin connections, and thermal data for designers integrating the device into audio equipment.
| Supply Voltage (Vs) – Absolute Maximum | +20 V |
|---|---|
| Input Voltage (Vi) – Absolute Maximum | +15 V |
| Output Peak Current (internally limited) | 4 A |
| Power Dissipation at Tcase = 75 °C | 25 W |
| Storage and Junction Temperature Range | -40 °C to +150 °C |
| Quiescent Drain Current (typical) | 45 mA at Vs = +20 V |
| Input Offset Voltage (typical) | +2 mV at Vs = +20 V |
| Output Power (typical) at 20 V supply, 82 Ω load | 12 W |
| Thermal Resistance Junction‑case | 3 °C/W |
The maximum supply voltage is +20 V.
Typical output power is 12 W when using an 82 Ω load.
The differential input voltage must not exceed ±15 V.