LM4861MX/NOPB Audio Power Amplifier IC Audio Amplifiers 1.1W Audio Pwr Amp

FEATURES

• No output coupling capacitors, bootstrap capacitors, or snubber circuits are necessary

• Small Outline (SOIC) packaging

• Compatible with PC power supplies

• Thermal shutdown protection circuitry

• Unity-gain stable

• External gain configuration capability

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+N 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 for differential gains of up to 10 without the use of external compensation components. Higher gains may be achieved with suitable compensation.