Datasheet > LM4876_03

LM4876_03

更新时间： 2024-11-04 04:18:31

品牌	Logo	应用领域
美国国家半导体 - NSC		放大器功率放大器
页数	文件大小	规格书
12页	320K
描述
1.1W Audio Power Amplifier with Logic Low Shutdown

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LM4876_03 数据手册

March 2003

LM4876

1.1W Audio Power Amplifier with Logic Low Shutdown

General Description

Key Specifications

The LM4876 is a single 5V supply bridge-connected audio

power amplifier capable of delivering 1.1W (typ) of continu-

ous average power to an 8Ω load with 0.5% THD+N.

THD+N at 1kHz for 1W continuous

average output power into 8Ω

Output power at 1kHz into 8Ω

with 10% THD+N

0.5% (max)

1.5W (typ)

Like other audio amplifiers in the Boomer series, the LM4876

is designed specifically to provide high quality output power

with a minimal amount of external components. The LM4876

does not require output coupling capacitors, bootstrap ca-

pacitors, or snubber networks. It is perfectly suited for low-

power portable systems.

Shutdown current

0.01µA (typ)

2.0V to 5.5V

Supply voltage range

Features

The LM4876 features an active low externally controlled,

micro-power shutdown mode. Additionally, the LM4876 fea-

tures an internal thermal shutdown protection mechanism.

For PCB space efficiency, the LM4876 is available in MSOP

and SO surface mount packages.

n Does not require output coupling capacitors, bootstrap

capacitors, or snubber circuits

n 10-pin MSOP and 8-pin SO packages

n Unity-gain stable

n External gain set

The unity-gain stable LM4876’s closed loop gain is set using

external resistors.

Applications

n Mobile Phones

n Portable Computers

n Desktop Computers

n Low-Voltage Audio Systems

Typical Application

10129901

FIGURE 1. Typical LM4876 Audio Amplifier Application Circuit.

Numbers in ( ) are specific to the 10-pin MSOP package

Boomer^®is a registered trademark of National Semiconductor Corporation.

DS101299

www.national.com

12 3 4 5 6 7...12

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LM4876MM/NOPB	TI	获取价格	1.1W Audio Power Amplifier with Logic Low Shutdown
LM4876MM-NOPB	TI	获取价格	LM4876 1.1W Audio Power Amplifier with Logic Low Shutdown
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