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LM4858 - Mono 1.5 W / Stereo 300mW Power Amplifier

Datasheet Summary

Description

The LM4858 is an audio power amplifier capable of delivering 1.5W (typ) of continuous average power into a mono 4Ω bridged-tied load (BTL) with 1% THD+N or 95mW per channel of continuous average power into stereo 32Ω singleended (SE) loads with 1% THD+N, using a 5V power supply.

Features

  • an externally controlled, micropower consumption shutdown mode and thermal shutdown protection. The unity-gain stable LM4858’s gain is set by external gain-setting resistors Key Specifications n n n n n n n n n n Output Power at 1% THD+N, 1kHz: LM4858LD 3Ω BTL LM4858LD 4Ω BTL LM4858MM 4Ω BTL LM4858MM,LD 8Ω BTL LM4858MM,LD 8Ω SE LM4858MM,LD 32Ω SE THD+N at 1kHz, 95mW into 32Ω SE Single Supply Operation Shutdown Current 1.9W (typ) 1.7W (typ) 1.5W (typ) 1.1W (typ) 300mW (typ) 95mW (typ) 1% (typ) 2.

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Datasheet Details

Part number LM4858
Manufacturer National Semiconductor
File Size 707.42 KB
Description Mono 1.5 W / Stereo 300mW Power Amplifier
Datasheet download datasheet LM4858 Datasheet
Additional preview pages of the LM4858 datasheet.

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LM4858 Mono 1.5 W / Stereo 300mW Power Amplifier May 2003 LM4858 Mono 1.5 W / Stereo 300mW Power Amplifier General Description The LM4858 is an audio power amplifier capable of delivering 1.5W (typ) of continuous average power into a mono 4Ω bridged-tied load (BTL) with 1% THD+N or 95mW per channel of continuous average power into stereo 32Ω singleended (SE) loads with 1% THD+N, using a 5V power supply. The LM4858 can automatically switch between mono BTL and stereo SE modes utilizing a headphone sense pin. It is ideal for any system that provides both a monaural speaker output and a stereo line or headphone output Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components.
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