TDA2040H

Overview

The TDA2040 is a monolithic integrated circuit in Pentawatt package, intended for use as an audio class AB amplifier. Typically it provides 22W output power (d = 0.5%) at Vs = 32V/4Ω . The TDA2040 provides high output current and has very low harmonic and cross-over distortion. Further the device incorporates a patented short circuit protection system comprising an arrangement for automatically limiting the dissipated power so as to keep the working point of the output transistors within their safe operating area. A thermal shut-down system is also included.

Feature Summary

• Monolithic integrated circuit designed for audio class AB amplification
• Patented short circuit protection system limits dissipated power to maintain safe operating area
• Integrated thermal shut-down system protects against overheating

Applications

• Hi-Fi audio power amplifiers
• Multiway loudspeaker systems with active crossovers
• Active boxes and subwoofer/midrange/tweeter solutions

Procurement Notes

Verify the exact ordering suffix when sourcing replacements, as variations exist between standard and automotive grades. Confirm that the component meets RoHS compliance requirements if applicable to your manufacturing process. Ensure the supplier provides official datasheets matching the specific part number variant to guarantee electrical characteristics align with design specifications.

Selection Notes

Select this component for applications requiring high output current and low harmonic distortion in a single-channel configuration. Consider the Pentawatt package for its thermal performance and mounting flexibility. Evaluate the need for external protection diodes when driving highly inductive loads to ensure circuit stability and longevity under varying operational conditions.

Part Context

The TDA2040 belongs to STMicroelectronics' family of high-power audio amplifiers. It is specifically engineered for Hi-Fi applications where sound quality and reliability are paramount. The device integrates advanced protection features directly into the silicon, reducing the need for external protective components and simplifying the overall system design for manufacturers.

Replacement Considerations

TDA2040V