Texas Instruments

LM4917SDX

LM4917SDX Description

The LM4917SDX from Texas Instruments is a Class AB stereo audio amplifier designed for applications requiring high performance and low power consumption. This amplifier is part of the Boomer® series, known for its excellent audio quality and efficiency. The LM4917SDX offers a maximum output power of 95mW per channel into a 16Ω load, making it suitable for driving small speakers or headphones. It operates over a wide supply voltage range of 1.4V to 3.6V, providing flexibility in power supply options. The device is available in a surface-mount package, specifically the 14-WSON (Tape & Reel), which is ideal for compact designs and automated assembly processes.

LM4917SDX Features

• High Output Power: Delivers 95mW per channel into a 16Ω load, ensuring robust audio performance.
• Wide Supply Voltage Range: Operates from 1.4V to 3.6V, providing compatibility with various power sources.
• Class AB Topology: Combines the high efficiency of Class B with the low distortion of Class A, offering excellent audio quality.
• Surface-Mount Packaging: The 14-WSON package is compact and suitable for automated assembly, reducing board space and assembly costs.
• Moisture Sensitivity Level (MSL) 1: Indicates unlimited exposure to moisture, enhancing reliability in various environmental conditions.
• Compliance: REACH unaffected and classified under ECCN EAR99, ensuring compliance with international regulations.
• Obsolete Status: While the product is marked as obsolete, it remains a reliable choice for legacy designs and applications where its specific features are required.

LM4917SDX Applications

The LM4917SDX is ideal for a variety of applications where high-quality audio output and low power consumption are critical. These applications include:

• Portable Audio Devices: Ideal for MP3 players, smartphones, and tablets, where compact size and efficient power usage are essential.
• Headphone Amplifiers: Provides high-quality audio for personal listening devices, ensuring a rich and clear sound experience.
• Small-Speaker Systems: Suitable for compact speaker systems in consumer electronics, delivering powerful audio performance.
• Battery-Powered Devices: The wide supply voltage range and low power consumption make it suitable for battery-powered applications, extending operational time.

Conclusion of LM4917SDX

The LM4917SDX from Texas Instruments is a versatile and efficient Class AB stereo audio amplifier. Its high output power, wide supply voltage range, and compact surface-mount packaging make it a valuable component for a range of audio applications. Despite being marked as obsolete, the LM4917SDX remains a reliable choice for legacy designs and applications where its specific features are required. Its compliance with international regulations and moisture sensitivity level 1 further enhance its reliability and usability in various environments.