1.1W Audio Power Amplifier
LM4861 1.1W Audio Power Amplifier with Shutdown Mode
May 1997
LM4861 1.1W Audio Power Amplifier with Shutdown Mode
Gen...
Description
LM4861 1.1W Audio Power Amplifier with Shutdown Mode
May 1997
LM4861 1.1W Audio Power Amplifier with Shutdown Mode
General Description
The LM4861 is a bridge-connected audio power amplifier capable of delivering 1.1W of continuous average power to an 8Ω load with 1% (THD) using a 5V power supply. Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components using surface mount packaging. Since the LM4861 does not require output coupling capacitors, bootstrap capacitors, or snubber networks, it is optimally suited for low-power portable systems. The LM4861 features an externally controlled, low-power consumption shutdown mode, as well as an internal thermal shutdown protection mechanism. The unity-gain stable LM4861 can be configured by external gain-setting resistors.
Key Specifications
n THD at 1 kHz at 1W continuous average output power into 8Ω n Output power at 10% THD+N at 1 kHz into 8Ω n Shutdown Current 1.0% (max) 1.5W (typ) 0.6 µA (typ)
Features
n No output coupling capacitors, bootstrap capacitors, or snubber circuits are necessary n Small Outline (SO) packaging n Compatible with PC power supplies n Thermal shutdown protection circuitry n Unity-gain stable n External Gain Configuration Capability
Applications
n n n n Personal computers Portable consumer products Self-powered speakers Toys and games
Typical Application
Connection Diagram
Small Outline Package
DS011986-2
Top View Order...
Similar Datasheet