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LM4850 Datasheet Mono 1.5w / Stereo 300mw Power Amplifier

Manufacturer: National Semiconductor (now Texas Instruments)

Overview: LM4850 Mono 1.5 W / Stereo 300 mW Power Amplifier July 2002 LM4850 Mono 1.

General Description

The LM4850 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 single-ended (SE) loads with 1% THD+N, using a 5V power supply.

The LM4850 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.

Key Features

  • an externally controlled, micropower consumption shutdown mode and thermal shutdown protection. The unity-gain stable LM4850’s gain is set by external gain-setting resistors Note 1: An LM4850LD that has been properly mounted to a circuit board will deliver 1.9W into 3Ω (at 1% THD+N). The other package options for the LM4850 will deliver 1.1W into 8Ω (at 1% THD+N). See.

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