Part # LM4853 datasheet

Part Manufacturer: National Semiconductor

National Semiconductor

Part Description: LM4853 Boomer ® Audio Power Amplifier Series Mono 1.5 W Stereo 300mW Power Amplifier


Part Details:

LM4853 January 2003 Mono LM4853Mono 1.5 W / Stereo 300mW Power Amplifier 1. General Description Key Specifications 5 The LM4853 is an audio power amplifier capable of deliver- n Output Power at 1% THD+N, 1kHz: W ing 1.5W (typ) of continuous average power into a mono 4 n LM4853LD 3 BTL 1.9W (typ) bridged-tied load (BTL) with 1% THD+N or 95mW per chan- n LM4853LD 4 BTL 1.7W (typ) / nel of continuous average power into stereo 32 single- Stereo n LM4853MM 4 BTL 1.5W (typ) ended (SE) loads with 1% THD+N, using a 5V power supply. n LM4853MM,LD 8 BTL 1.1W (typ) The LM4853 can automatically switch between mono BTL n LM4853MM,LD 8 SE 300mW (typ) and stereo SE modes utilizing a headphone sense pin. It is n LM4853MM,LD 32 SE 95mW (typ) ideal for any system that provides both a monaural speaker n THD+N at 1kHz, 95mW into 32 SE 1% (typ) output and a stereo line or headphone output 300mW n Single Supply Operation 2.4 to 5.5V Boomer audio power amplifiers were designed specifically to n Shutdown Current 18µA (typ) provide high quality output power with a minimal amount ofexternal components. Since the LM4853 does not requirebootstrap capacitors or snubber networks, it is optimally Features suited for low-power portable systems. n Mono 1.5W BTL or stereo 300mW output Power The LM4853 features an externally controlled, micropower n Headphone sense consumption shutdown mode and thermal shutdown protec-


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LM4853.pdf Datasheet