LM4819, LM4819MBD

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SNAS133D – FEBRUARY 2001 – REVISED MARCH 2013

LM4819

350mW Audio Power Amplifier with Shutdown Mode

Check for Samples: LM4819, LM4819MBD

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FEATURES

DESCRIPTION

The LM4819 is a mono bridged power amplifier that

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•

WSON, SOIC, and VSSOP Surface Mount

Packaging

a 16

•

Switch On/Off Click Suppression

load with 10% THD+N from a 5V power supply.

•

Unity-Gain Stable

The LM4819 Boomer audio power amplifier is

•

Minimum External Components

designed specifically to provide high quality output

power and minimize PCB area with surface mount

KEY SPECIFICATIONS

packaging

and

a

minimal

amount

of

external

components. Since the LM4819 does not require

•

THD+N at 1kHz, 350mW Continuous Average

output coupling capacitors, bootstrap capacitors or

Output Power into 16

Ω: 10% (max)

snubber networks, it is optimally suited for low-power

•

THD+N at 1kHz, 300mW Continuous Average

portable applications.

Output Power into 8

Ω: 10% (max)

The closed loop response of the unity-gain stable

•

Shutdown Current: 0.7

μA (typ)

LM4819 can be configured using external gain-setting

resistors. The device is available in WSON, VSSOP,

APPLICATIONS

and SOIC package types to suit various applications.

•

General Purpose Audio

•

Portable Electronic Devices

•

Information Appliances (IA)

Typical Application

Figure 1. Typical Audio Amplifier Application Circuit

Connection Diagrams

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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

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PRODUCTION DATA information is current as of publication date.

Copyright © 2001–2013, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.