TDA2040 Datasheet

25-watt hi-fi audio power amplifier


The TDA2040 is a monolithic integrated circuit in the Pentawatt® package, intended for use as an audio class-AB amplifier. Typically, it provides 25 W output power into 4 Ω with THD = 0.5% at VS = 34 V. The TDA2040 provides high output current and has very low harmonic and crossover distortion. Furthermore, the device incorporates a patented short-circuit protection system comprising an arrangement for automatically limiting the dissipated power so as to keep the operating point of the output transistors within their safe operating range. A thermal shutdown system is also included.

■ Wide-range supply voltage, up to 40 V
■ Single or split power supply
■ Short-circuit protection to ground
■ Thermal shutdown
■ PO = 25 W @ THD = 0.5%, VS = ±17 V, RL= 4 Ω
■ PO = 30 W @ THD =10%, VS = ±17 V, RL = 4 Ω



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Manufacturer information


STMicroelectronics is a global independent semiconductor company and is a leader in developing and delivering semiconductor solutions across the spectrum of microelectronics applications. An unrivaled combination of silicon and system expertise, manufacturing strength, Intellectual Property (IP) portfolio and strategic partners positions the Company at the forefront of System-on-Chip (SoC) technology and its products play a key role in enabling today's convergence trends

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