Datasheet > L4782TA

L4782TA

更新时间： 2024-09-16 22:23:51

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
26页	1151K
描述
3 Channel 25W Audio Power Amplifier with Mute and Standby

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

L4782TA 数据手册

February 2004

™

LM4782 Overture Audio Power Amplifier Series

3 Channel 25W Audio Power Amplifier with Mute and

Standby

General Description

Key Specifications

The LM4782 is a three channel audio amplifier capable of

typically delivering 25W per channel of continuous average

output power into an 8Ω load with less than 0.5% THD+N

from 20Hz - 20kHz.

Output Power/Channel with 0.5% THD+N,

1kHz into 8Ω

25W (typ)

THD+N at 3x15W into 8Ω (20Hz - 20kHz) 0.2% (typ)

THD+N at 3x15W into 6Ω (20Hz - 20kHz) 0.3% (typ)

THD+N at 3x15W into 4Ω (20Hz - 20kHz) 0.4% (typ)

The LM4782 is fully protected utilizing National’s Self Peak

Instantaneous Temperature (˚Ke) (SPiKe^TM) protection cir-

cuitry. SPiKe provides a dynamically optimized Safe Operat-

ing Area (SOA). SPiKe protection completely safeguards the

LM4782’s outputs against over-voltage, under-voltage, over-

loads, shorts to the supplies or GND, thermal runaway and

instantaneous temperature peaks. The advanced protection

features of the LM4782 places it in a class above discrete

and hybrid amplifiers.

Mute Attenuation

PSRR

115dB (typ)

85dB (min)

18V/µs (typ)

Slew Rate

Features

n SPiKe Protection

Each amplifier of the LM4782 has an independent smooth

transition fade-in/out mute and a power conserving standby

mode. The mute and standby modes can be controlled by

external logic.

n Low external component count

n Quiet fade-in/out mute mode

n Low power standby mode

n Wide supply range: 20V - 64V

The LM4782 can easily be configured for bridge or parallel

operation for higher power and bi-amp solutions.

n Signal-to-Noise Ratio ≥ 98dB (ref. to P_O= 1W)

Applications

n Audio amplifier for component stereo

n Audio amplifier for compact stereo

n Audio amplifier for home theater in a box (HTB)

n Audio amplifier for self-powered speakers

n Audio amplifier for high-end and HD TVs

Typical Application

200811D2

FIGURE 1. Typical Audio Amplifier Application Circuit

™

SPiKe Protection and Overture are trademarks of National Semiconductor Corporation.

DS200811

www.national.com

12 3 4 5 6 7...26

中文翻译

下载PDF

与L4782TA相关器件

型号	品牌	获取价格	描述	数据表
L4785	STMICROELECTRONICS	获取价格	VERY LOW DROP VOLTAGE REGULATORS
L4785CV	STMICROELECTRONICS	获取价格	IC,VOLT REGULATOR,FIXED,+8.5V,BIPOLAR,SIP,3PIN,PLASTIC
L4805	STMICROELECTRONICS	获取价格	VERY LOWDROP VOLTAGE REGULATORS
L4805CV	STMICROELECTRONICS	获取价格	VERY LOWDROP VOLTAGE REGULATORS
L4805CX	STMICROELECTRONICS	获取价格	VERY LOWDROP VOLTAGE REGULATORS
L4805-L4885-L4892	STMICROELECTRONICS	获取价格	VERY LOWDROP VOLTAGE REGULATORS
L4808	STMICROELECTRONICS	获取价格	VERY LOWDROP VOLTAGE REGULATORS
L4808CV	STMICROELECTRONICS	获取价格	VERY LOWDROP VOLTAGE REGULATORS
L4808CX	STMICROELECTRONICS	获取价格	VERY LOWDROP VOLTAGE REGULATORS
L4808-L4810-L4812	STMICROELECTRONICS	获取价格	VERY LOWDROP VOLTAGE REGULATORS