LM1876功放芯片资料手册

LM1876 Overture™ Audio Power Amplifier Series  
Dual 20W Audio Power Amplifier with Mute and Standby  
Modes   
General Description  Key Specifications  
The LM1876 is a stereo audio amplifier capable of delivering typically 20W per channel of continuous average output power into a 4Ω or 8Ω load with less than 0.1% THD+N.  jTHD+N at 1kHz at 2 x 15W continuous average output power into 4Ω or 8Ω: 0.1%  
Each amplifier has an independent smooth transition fade- jTHD+N at 1kHz at continuous average  
in/out mute and a power conserving standby mode which  output power of 2 x 20W into 8Ω:  0.009%  
can be controlled by external logic.  jStandby current:  4.2mA  
The performance of the LM1876, utilizing its Self Peak In-   
stantaneous Temperature (°Ke) (SPiKe™) protection cir-cuitry, places it in a class above discrete and hybrid amplifi- Features   
ers by providing an inherently, dynamically protected Safe  n SPiKe protection  
Operating Area (SOA). SPiKe protection means that these parts are safeguarded at the output against overvoltage, undervoltage, overloads, including thermal runaway and in-stantaneous temperature peaks.  n Minimal amount of external components necessary n Quiet fade-in/out mute mode n Standby-mode