STMicroelectronics

TDA7481  

Audio Amplifiers

TDA7481 Description

The TDA7481 is a Class D monolithic power amplifier designed by STMicroelectronics, a leading manufacturer of high-performance integrated circuits. This device is specifically engineered to deliver high-quality audio performance with a maximum output power of 18 watts into a 4-ohm load. The TDA7481 operates within a supply voltage range of ±10V to ±25V, making it suitable for a variety of applications requiring robust and efficient audio amplification.

The TDA7481 is housed in a 15-Multiwatt package, which is ideal for through-hole mounting, ensuring secure and reliable installation on printed circuit boards. Despite its robust performance, the TDA7481 is classified as obsolete, indicating that it may no longer be in active production. However, its technical specifications and performance capabilities still make it a valuable component for certain applications.

TDA7481 Features

• High Output Power: The TDA7481 is capable of delivering a maximum output power of 18 watts into a 4-ohm load, ensuring high-quality audio performance.
• Wide Operating Voltage Range: With a supply voltage range of ±10V to ±25V, the TDA7481 can operate efficiently across a broad range of power supplies, making it versatile for various applications.
• Class D Amplifier: As a Class D amplifier, the TDA7481 offers high efficiency and low power consumption, making it suitable for applications where energy efficiency is critical.
• Through-Hole Mounting: The through-hole mounting type ensures secure and reliable installation on printed circuit boards, enhancing the durability and stability of the device.
• Compliance and Safety: The TDA7481 is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and safety standards. It also has a moisture sensitivity level (MSL) of 3, indicating it can withstand up to 168 hours of exposure to moisture.
• Operating Temperature: The TDA7481 operates within a temperature range of 0°C to 70°C, making it suitable for use in a variety of environmental conditions.

TDA7481 Applications

The TDA7481 is ideal for applications requiring high-efficiency audio amplification. Its robust performance and wide operating voltage range make it suitable for:

• Consumer Electronics: Ideal for audio systems in home theaters, portable speakers, and other consumer electronics where high-quality audio output is essential.
• Automotive Audio Systems: The TDA7481's high efficiency and power output make it suitable for car audio systems, where space and power consumption are critical factors.
• Industrial Applications: The device's durability and wide operating temperature range make it suitable for industrial audio applications, such as public address systems and alarm systems.
• Professional Audio Equipment: The TDA7481 can be used in professional audio equipment, such as amplifiers and mixers, where high-quality audio performance is required.

Conclusion of TDA7481

The TDA7481, designed by STMicroelectronics, is a high-performance Class D monolithic power amplifier that offers significant advantages over similar models. Its ability to deliver 18 watts of power into a 4-ohm load, combined with its wide operating voltage range and high efficiency, makes it an excellent choice for applications requiring robust and efficient audio amplification. Despite being classified as obsolete, the TDA7481 remains a valuable component for specific use cases, particularly in consumer electronics, automotive audio systems, industrial applications, and professional audio equipment. Its compliance with environmental and safety standards further enhances its appeal.

TDA7481 Documents

Download datasheets and manufacturer documentation for TDA7481