Datasheet > LM3886

LM3886

更新时间： 2024-11-16 22:51:51

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
20页	747K
描述
LM3886 Overture⑩ Audio Power Amplifier Series High-Performance 68W Audio Power Amplifier w/Mute

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LM3886 数据手册

May 1999

Ovture

™

LM3886 Overture Audio Power Amplifier Series

High-Performance 68W Audio Power Amplifier w/Mute

n 38W cont. avg. output power into 8Ω at V_CC

n 50W cont. avg. output power into 8Ω at V_CC

28V

35V

General Description

The LM3886 is a high-performance audio power amplifier

capable of delivering 68W of continuous average power to a

4Ω load and 38W into 8Ω with 0.1% (THD + N) from

20 Hz–20 kHz.

n 135W instantaneous peak output power capability

n Signal-to-Noise Ratio ≥ 92 dB

n An input mute function

n Output protection from a short to ground or to the

supplies via internal current limiting circuitry

n Output over-voltage protection against transients from

inductive loads

n Supply under-voltage protection, not allowing internal

biasing to occur when |V_EE| + |V_CC| ≤ 12V, thus

eliminating turn-on and turn-off transients

n 11-lead TO-220 package

The performance of the LM3886, utilizing its Self Peak In-

™

stantaneous Temperature (˚Ke) (SPiKe ) Protection Cir-

cuitry, puts it in a class above discrete and hybrid amplifiers

by providing an inherently, dynamically protected Safe Oper-

ating Area (SOA). SPiKe Protection means that these parts

are completely safeguarded at the output against overvolt-

age, undervoltage, overloads, including shorts to the sup-

plies, thermal runaway, and instantaneous temperature

peaks.

The LM3886 maintains an excellent Signal-to-Noise Ratio of

greater than 92 dB with a typical low noise floor of 2.0 µV. It

exhibits extremely low (THD + N) values of 0.03% at the

rated output into the rated load over the audio spectrum, and

provides excellent linearity with an IMD (SMPTE) typical rat-

ing of 0.004%.

Applications

n Component stereo

n Compact stereo

n Self-powered speakers

n Surround-sound amplifiers

n High-end stereo TVs

Features

n 68W cont. avg. output power into 4Ω at V_CC

28V

Typical Application

DS011833-1

*Optional components dependent upon specific design requirements. Refer to the External Components Description section for a component functional

description.

FIGURE 1. Typical Audio Amplifier Application Circuit

™

Protection are trademarks of National Semiconductor Corporation.

Overture and SPiKe

DS011833

www.national.com

12 3 4 5 6 7...20

中文翻译

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与LM3886相关器件

型号	品牌	获取价格	描述	数据表
LM3886_03	NSC	获取价格	Overture TM Audio Power Amplifier Series High-Performance 68W Audio Power Amplifier w/Mute
LM3886DWF	TI	获取价格	68W, 1 CHANNEL, AUDIO AMPLIFIER, UUC, WAFER
LM3886MDC	TI	获取价格	68W, 1 CHANNEL, AUDIO AMPLIFIER, UUC, DIE
LM3886MWC	TI	获取价格	68W, 1 CHANNEL, AUDIO AMPLIFIER, UUC, WAFER
LM3886T	NSC	获取价格	LM3886 Overture⑩ Audio Power Amplifier Series
LM3886T	TI	获取价格	High-Performance 68W Audio Power Amplifier w/Mute
LM3886T/NOPB	TI	获取价格	LM3886 Overture Audio Power Amplifier Series High-Performance 68W Audio Power Amplifier w/
LM3886TF	NSC	获取价格	LM3886 Overture⑩ Audio Power Amplifier Series
LM3886TF	TI	获取价格	LM3886 Overture Audio Power Amplifier Series High-Performance 68W Audio Power Amplifier w/
LM3886TF/NOPB	TI	获取价格	LM3886 Overture Audio Power Amplifier Series High-Performance 68W Audio Power Amplifier w/

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