Datasheet > LM49810

LM49810

更新时间： 2024-09-21 00:04:27

品牌	Logo	应用领域
NAIS		驱动器放大器功率放大器
页数	文件大小	规格书
22页	863K
描述
200V Audio Power Amplifier Driver with Baker Clamp

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LM49810 数据手册

September 2007

LME49810

200V Audio Power Amplifier Driver with Baker Clamp

General Description

Key Specifications

The LME49810 is a high fidelity audio power amplifier driver

designed for demanding consumer and pro-audio applica-

tions. Amplifier output power may be scaled by changing the

supply voltage and number of power transistors. The

LME49810’s minimum output current is 50mA. When using a

discrete output stage the LME49810 is capable of delivering

in excess of 300 watts into a single-ended 8Ω load.

Unique to the LME49810 is an internal Baker Clamp. This

clamp insures that the amplifier output does not saturate

when over driven. The resultant “soft clipping” of high level

audio signals suppresses undesirable audio artifacts gener-

ated when conventional solid state amplifiers are driven hard

into clipping.

■ꢀWide operating voltage range

■ꢀSlew Rate

■ꢀOutput Drive Current

■ꢀPSRR (f = DC)

±20V to ±100V

50V/μs (typ)

60mA (typ)

110dB (typ)

0.0007 (typ)

■ꢀTHD+N (f = 1kHz)

Features

Very high voltage operation

■

Output clamp logic output

Thermal shutdown and mute

The LME49810 includes thermal shutdown circuitry that ac-

tivates when the die temperature exceeds 150°C. The

LME49810’s mute function, when activated, mutes the input

drive signal and forces the amplifier output to a quiescent

state.

Customizable external compensation

Scalable output power

■

Applications

Guitar amplifiers

■

Powered studio monitors

Powered subwoofers

Pro audio

Audio video receivers

High voltage industrial applications

Boomer® is a registered trademark of National Semiconductor Corporation.

Tru-GND is a trademark of National Semiconductor Corporation.

202167

www.national.com

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