Part # LM4700 datasheet

Part Manufacturer: National Semiconductor

National Semiconductor

Part Description: ™ Audio Power Amplifier Series 30W Audio Power Amplifier with Mute and Standby Modes


Part Details:

30W LM4700 August 2000 Audio Overture LM4700 Power OvertureTM Audio Power Amplifier Series30W Audio Power Amplifier with Audio Mute and Standby Modes Amplifier General Description Key Specifications The LM4700 is an audio power amplifier capable of deliver- n THD+N at 1kHz at continuous average output power of Power ing typically 30W of continuous average output power into an 25W into 8: 0.1% (max) 8 load with less than 0.1% THD+N. n THD+N from 20Hz to 20kHz at 30W of continuous The LM4700 has an independent smooth transition fade-in/ average output power into 8: 0.08% (typ) with out mute and a power conserving standby mode which can n Standby current: 2.1mA (typ) be controlled by external logic. Amplifier The performance of the LM4700, utilizing its Self Peak In- Features Mute stantaneous Temperature (°Ke) (SPiKeTM) protection cir- n SPiKe Protection cuitry, places it in a class above discrete and hybrid amplifi- n Minimal amount of external components necessary ers by providing an inherently, dynamically protected Safe n Quiet fade-in/out mute function Operating Area (SOA). SPiKe protection means that these and n Power conserving standby-mode parts are completely safeguarded at the output against ov- Series ervoltage, undervoltage, overloads, including thermal run- n Isolated 11-lead TO-220 package away and instantaneous temperature peaks. n Wide supply range 20V - 66V Standby Applicationsn Component stereo n Compact stereo Modes Typical Application 01236901 *Optional components dependent upon specific design requirements. Refer to the External Components Description section for a component functionaldescription.


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LM4700.pdf Datasheet