The LM4850MM is a Boomer audio power amplifier from Texas Instruments (formerly National Semiconductor). This is a mono, bridge-tied load (BTL) audio amplifier capable of delivering 1.1W into an 8Ω speaker with low total harmonic distortion plus noise (THD+N). It's designed for portable applications where small size and low power consumption are critical. It features a shutdown mode that reduces current consumption to a minimum, extending battery life.

Applications

• Mobile phones
• PDAs
• Portable media players
• Laptop computers
• Other battery-powered audio devices

Features

• Mono BTL output
• 1.1W output power into 8Ω
• Low THD+N
• Shutdown mode with low current consumption
• Integrated volume control
• Integrated short-circuit protection
• Available in a space-saving MSOP package

Benefits

• High-quality audio amplification
• Extended battery life
• Simplified circuit design
• Reduced component count
• Robust protection against short circuits
• Small footprint for portable applications

Additional Details

The LM4850MM operates on a single supply voltage. It provides a clean and efficient audio amplification solution for portable devices. The internal volume control eliminates the need for an external potentiometer, further reducing component count and board space. The shutdown mode is controlled by a logic-level signal, allowing the amplifier to be easily turned on and off by a microcontroller. The amplifier is designed to be stable and reliable, even under demanding operating conditions.