LM4765 Overture™ 30W+30W Audio Power Amplifier IC

The LM4765 Power Amplifier IC is a high-performance dual-channel audio amplifier designed to deliver exceptional sound quality in compact applications. Based on National Semiconductor's LM4765 integrated circuit, this device provides 30W of power per channel, making it perfect for hobbyists building audio systems, educators demonstrating amplifier design, and professionals developing consumer audio equipment. Its integrated thermal protection and comprehensive safeguards make it suitable for home theatre systems, multimedia speakers, and automotive audio applications.

Key Features:

• Dual-Channel Configuration: Delivers 30W per channel for stereo audio applications
• High-Quality Audio Output: Low distortion and excellent signal-to-noise ratio for clear, powerful sound
• Integrated Protection: Built-in thermal shutdown, short-circuit protection, and over-current limiting
• Compact Multiwatt Package: TO-220-style package with mounting hole for efficient heat dissipation
• Wide Supply Voltage Range: Operates across a broad voltage range suitable for various power supply configurations
• Minimal External Components: Simplified circuit design reduces component count and board space
• Mute Function: Integrated mute capability for pop-free operation during power-up and shutdown
• 11-Pin Configuration: Provides access to all critical functions including audio inputs, outputs, and power connections
• Part Number: LM4765 (National Semiconductor / Texas Instruments)
• Output Power: 30W + 30W into typical speaker loads
• Package Type: Multiwatt-11 (TO-220 style with 11 pins)
• Thermal Protection: Automatic shutdown at elevated temperatures with hysteresis for reliable operation
• Operating Configuration: Bridge-tied load (BTL) or single-ended output modes supported
• ESD Protection: Built-in electrostatic discharge protection on all pins

Applications

• Home Audio Systems: Perfect for building powered bookshelf speakers and multimedia amplifiers
• Automotive Audio: Suitable for car audio upgrades and custom installation projects
• Educational Use: Excellent for teaching audio amplifier design and power electronics principles
• DIY Electronics: Ideal for hobbyists creating custom audio equipment and music reproduction systems
• Home Theatre: Can be used in multi-channel amplifier designs and surround sound applications

Why Choose the LM4765 Power Amplifier IC? The LM4765 combines robust power output with comprehensive protection features in a proven, reliable package. Its dual-channel architecture and integrated safeguards make it an excellent choice for anyone looking to build high-quality audio amplifiers without the complexity of discrete component designs. Whether you're upgrading existing equipment or creating something entirely new, the LM4765 delivers professional-grade performance with the ease of use that makes audio projects enjoyable.