LM4805 - Low Voltage High Power Audio Power Amplifier

Product Overview

National Semiconductor

Part number	LM4805
Manufacturer	National Semiconductor
File Size	1.07 MB
Description	Low Voltage High Power Audio Power Amplifier
Datasheet	LM4805 Datasheet
Additional preview pages of the LM4805 datasheet.

The LM4805 is a boosted audio power amplifier designed for driving 8ohm speakers in portable applications.

It delivers at least 1W continuous power to an 8Ω load from any input voltage between 3V and 4.6V with less than 2% THD+N.

a low-power consumption shutdown mode along with an internal thermal shutdown protection mechanism and short circuit protection. The LM4805 contains advanced pop & click circuitry that eliminates noises which would otherwise occur during turn-on and turn-off transitions. The LM4805 is unity-gain stable and can be configured by external gain-setting resistors. Key Specifications j Quiescent Power Supply Current (VDD = 3V) j Output Power 14mA (typ) 1W (typ) 2µA (max) (VDD = 3.0V, RL = 8Ω, THD+.

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Published: Apr 28, 2010 |