LM4882MM National Semiconductor, LM4882MM Datasheet

LM4882MM

Manufacturer Part Number

LM4882MM

Description

Manufacturer

National Semiconductor

Datasheets

1.LM4882MM.pdf (12 pages)

2.LM4882MM.pdf (12 pages)

3.LM4882MM.pdf (11 pages)

Specifications of LM4882MM

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LM4882

250mW Audio Power Amplifier with Shutdown Mode

General Description

The LM4882 is a single-ended audio power amplifier ca-

pable of delivering 250 mW of continuous average power

into an 8

Boomer

to provide high quality output power with a minimal amount

of external components using surface mount packaging.

Since the LM4882 does not require bootstrap capacitors or

snubber networks, it is optimally suited for low-power por-

table systems.

The LM4882 features an externally controlled, low power

consumption shutdown mode which is virtually clickless and

popless, as well as an internal thermal shutdown protection

mechanism.

The unity-gain stable LM4882 can be configured by external

gain-setting resistors.

Typical Application

*Refer to the Application Information Section for information concerning

proper selection of the input and output coupling capacitors.

Boomer

FIGURE 1. Typical Audio Amplifier Application Circuit

is a registered trademark of National Semiconductor Corporation.

audio power amplifiers were designed specifically

load with 1% (THD + N) from a 5V power supply.

DS100030

DS100030-1

Key Specifications

Features

n MSOP surface mount packaging

n “Click and Pop” Suppression Circuitry

n Supply voltages from 2.4V–5.5V

n Operating Temperature −40˚C to 85˚C

n Unity-gain stable

n External gain configuration capability

n No bootstrap capacitors, or snubber circuits are

Applications

n Personal Computers

n Cellular Phones

n General Purpose Audio

Connection Diagram

n THD + N at 1 kHz at 250 mW

n Output Power at 1% THD + N

n THD + N at 1 kHz at 85 mW

n Shutdown Current

necessary

continuous average output

power into 8

continuous average output

power into 32

at 1kHz into 4

See NS Package Number MUA08A or M08A

Order Number LM4882MM or LM4882M

MSOP and SOIC Package

Top View

DS100030-2

380mW (typ)

www.national.com

January 1998

0.7 µA (typ)

1.0% (max)

0.1% (typ)

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