1.1W Audio Power Amplifier with Shutdown Mode - LM4861

LM4861 (ACTIVE)

1.1W Audio Power Amplifier with Shutdown Mode

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.

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

Key Specifications

  • THD+N for 1kHz at 1W continuous average output power into 8Ω 1.0% (max)
  • Output power at 10% THD+N at 1kHz into 8Ω 1.5 W (typ)
  • Shutdown Current 0.6µA (typ)

All trademarks are the property of their respective owners.

View more

Parametrics Compare all products in Dynamic Speaker

 
Speaker Channels
Speaker Amp Type
Output Power (W)
PSRR (dB)
Pin/Package
Approx. Price (US$)
Operating Temperature Range (C)
Rating
LM4861
Mono    
Class-AB    
1.6    
65    
8SOIC    
0.66 | 1ku    
-40 to 85    
Catalog    

Related end equipment

  • Personal computers
  • Portable consumer products
  • Self-powered speakers
  • Toys and games

Click Here