Texas Instruments

LM4924SDX

LM4924SDX Description

The LM4924SDX is a Class AB stereo audio amplifier from Texas Instruments, part of the Boomer® series. It is designed to deliver high performance in a compact package, making it ideal for a variety of consumer electronics applications. The amplifier supports a maximum output power of 40mW per channel into a 16Ω load, ensuring clear and powerful audio output. It operates over a wide supply voltage range of 1.5V to 3.6V, which provides flexibility in power supply design and compatibility with various battery configurations.

The LM4924SDX features a surface mount package type, specifically in a Tape & Reel (TR) format, which facilitates easy integration into automated assembly processes. This amplifier is REACH unaffected and has an ECCN classification of EAR99, making it suitable for international markets. It also has a moisture sensitivity level (MSL) of 1, indicating it is not moisture sensitive and can be stored without special precautions.

LM4924SDX Features

The LM4924SDX offers several advanced features that enhance its performance and usability:

• Depopulation Control: Reduces the "pop" noise during power-up and power-down, improving user experience.
• Mute Functionality: Allows the amplifier to be muted, which is useful for applications requiring silent operation or during transitions.
• Shutdown Mode: Reduces power consumption when the amplifier is not in use, extending battery life in portable devices.
• Thermal Protection: Ensures the amplifier operates within safe temperature limits, preventing damage and prolonging its lifespan.

These features make the LM4924SDX a robust and reliable choice for audio applications, offering enhanced performance and protection mechanisms compared to similar models.

LM4924SDX Applications

The LM4924SDX is well-suited for a range of applications where high-quality audio output and compact design are critical. Specific use cases include:

• Portable Audio Devices: Ideal for smartphones, tablets, and portable media players where space is limited and battery life is a concern.
• Consumer Electronics: Suitable for small form-factor devices such as smart speakers, Bluetooth speakers, and other audio peripherals.
• Wearable Technology: Given its low power consumption and compact size, it is perfect for wearable devices that require efficient power management and minimal footprint.

The LM4924SDX's ability to deliver 40mW per channel into a 16Ω load ensures that it can drive small speakers and headphones efficiently, providing clear and dynamic audio output.

Conclusion of LM4924SDX

The LM4924SDX from Texas Instruments is a versatile and high-performance Class AB stereo audio amplifier. Its combination of compact size, low power consumption, and advanced features such as depopulation control, mute functionality, shutdown mode, and thermal protection make it an excellent choice for a variety of consumer electronics applications. Despite being marked as obsolete, the LM4924SDX remains a reliable option for designers looking for a proven audio solution. Its wide supply voltage range and compatibility with various power sources further enhance its appeal. For applications requiring efficient and high-quality audio output in a small form factor, the LM4924SDX is an ideal component to consider.