LM4804 Datasheet - Texas Instruments

LM4804 Low Voltage High Power Audio Power Amplifier

The LM4804 integrates a Boost Converter with an Audio Power Amplifier to drive voice coil speakers in portable applications. When powered by a 3V supply, it is capable of creating 1.8W power dissipation in an 8Ω bridge-tied-load (BTL) with less than 1% THD+N. Boomer audio power amplifiers were desig.

LM4804 Features

* 1

* 23 Pop & Click Circuitry Eliminates Noise During Turn-On and Turn-Off Transitions

* Low, 2μA (Max) Shutdown Current

* Low, 11mA (Typ) Quiescent Current (VDD = 4.2V, RL = 8Ω)

* 1.8W Mono BTL Output, RL = 8Ω, VDD = 3V

* Short Circuit Protection

* Unit

LM4804-etcTI.pdf