STMicroelectronics

TDA7491P

TDA7491P Description

The TDA7491P is a high-performance Class D stereo power amplifier IC designed by STMicroelectronics. This obsolete yet highly regarded component offers a maximum output power of 10W per channel into a 6-ohm load, making it suitable for a variety of audio applications. The TDA7491P operates within a supply voltage range of 5V to 18V, providing flexibility in power supply requirements. It features a surface-mount package, specifically in a tube format, which is ideal for compact and efficient PCB designs. The product is REACH unaffected and RoHS3 compliant, ensuring it meets stringent environmental and safety standards. With a moisture sensitivity level (MSL) of 3 (168 hours), it is well-suited for manufacturing environments that require controlled humidity conditions.

TDA7491P Features

The TDA7491P boasts several unique features that set it apart from other power amplifier ICs:

• High Efficiency: As a Class D amplifier, the TDA7491P achieves high efficiency, reducing power consumption and heat generation compared to traditional Class AB amplifiers.
• Low Distortion: Despite its high efficiency, the TDA7491P maintains low distortion levels, ensuring high-fidelity audio output.
• Wide Supply Voltage Range: The 5V to 18V supply voltage range provides compatibility with various power sources, enhancing its versatility.
• Surface-Mount Technology (SMT): The surface-mount package allows for easy integration into modern PCB designs, reducing the overall footprint and improving thermal performance.
• Environmental Compliance: The TDA7491P is REACH unaffected and RoHS3 compliant, making it suitable for environmentally conscious applications.
• Moisture Sensitivity Level (MSL) 3: This ensures the component can withstand manufacturing processes with controlled humidity, reducing the risk of moisture-related defects.

TDA7491P Applications

The TDA7491P is ideal for a range of applications where high-efficiency audio amplification is required:

• Consumer Electronics: Ideal for portable audio devices, such as Bluetooth speakers and compact sound systems, where power efficiency and compact design are crucial.
• Automotive Audio Systems: Suitable for in-car entertainment systems, providing high-fidelity audio output with minimal power consumption.
• Industrial Applications: Can be used in industrial control panels and monitoring systems where audio feedback is necessary.
• Professional Audio Equipment: Applicable in professional audio setups, such as mixing consoles and studio monitors, where reliability and performance are paramount.

Conclusion of TDA7491P

The TDA7491P from STMicroelectronics is a versatile and efficient Class D stereo power amplifier IC. Its high efficiency, low distortion, and wide supply voltage range make it an excellent choice for a variety of audio applications. The surface-mount package and environmental compliance further enhance its suitability for modern electronics manufacturing. Although now obsolete, the TDA7491P remains a reliable and high-performance option for designers seeking a compact and efficient audio amplification solution.