LM4951ASD datasheet(1/20 Pages) NSC

tên linh kiện	LM4951ASD

Giải thích chi tiết về linh kiện	Wide Voltage Range 1.8 Watt Audio Amplifier With Short Circuit Protection

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nhà sản xuất	NSC [National Semiconductor (TI)]

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September 5, 2008

LM4951A

Wide Voltage Range 1.8 Watt Audio Amplifier With Short

Circuit Protection

General Description

The LM4951A is an audio power amplifier designed for ap-

plications with supply voltages ranging from 2.7V up to 9V.

The LM4951A is capable of delivering 1.8W continuous av-

erage power with less than 1% THD+N into a bridge connect-

ed 8

Ω load when operating from a 7.5VDC power supply.

Boomer audio power amplifiers were designed specifically to

provide high quality output power with a minimal amount of

external components. The LM4951A does not require boot-

strap capacitors, or snubber circuits.

The LM4951A features a low-power consumption active-low

shutdown mode. Additionally, the LM4951A features an in-

ternal thermal shutdown protection mechanism and short

circuit protection.

The LM4951A contains advanced pop & click circuitry that

eliminates noises which would otherwise occur during turn-on

and turn-off transitions.

The LM4951A is unity-gain stable and can be configured by

external gain-setting resistors.

Key Specifications

■ Wide Voltage Range

2.7V to 9V

■ Quiescent Power Supply Current

(V

DD = 7.5V)

2.5mA (typ)

■ Power Output BTL at 7.5V,

1% THD

1.8W (typ)

■ Shutdown Current

0.01µA (typ)

■ Fast Turn on Time

25ms (typ)

Features

■ Pop & click circuitry eliminates noise during turn-on and

turn-off transitions

■ Wide supply voltage range: 2.7V to 9V

■ Low current, active-low shutdown mode

■ Low quiescent current

■ Thermal shutdown protection

■ Short circuit protection

■ Unity-gain stable

■ External gain configuration capability

Applications

■ Portable devices

■ Cell phones

■ Laptop computers

■ Computer speaker systems

■ MP3 player speakers

Boomer® is a registered trademark of National Semiconductor Corporation.

300578

www.national.com

Số phần tương tự - LM4951ASD

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Texas Instruments	LM4951ASD/NOPB	1Mb / 23P	Wide Voltage Range 1.8 Watt Audio Amplifier With Short Circuit Protection
Texas Instruments	LM4951ASDX/NOPB	1Mb / 23P	Wide Voltage Range 1.8 Watt Audio Amplifier With Short Circuit Protection

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Mô tả tương tự - LM4951ASD

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
National Semiconductor ...	LM4951	1Mb / 18P	Wide Voltage Range 1.8 Watt Audio Amplifier
ON Semiconductor	NCP4894	164Kb / 18P	1.8 Watt Differential Audio Power Amplifier with Selectable Shutdown November, 2005 ??Rev. 8
ON Semiconductor	NCP4894	171Kb / 19P	1.8 Watt Differential Audio Power Amplifier with Selectable Shutdown January, 2007 ??Rev. 9
NTE Electronics	NTE1516	81Kb / 3P	Integrated Circuit Audio Power Amp, 1.8 Watt
Unisonic Technologies	PA4894	494Kb / 11P	1.8 WATT DIFFERENTIAL AUDIO POWER AMPLIFIER WITH SELECTABLE SHUTDOWN
Texas Instruments	LM4951SD	1Mb / 22P	LM4951 Wide Voltage Range 1.8 Watt Audio Amplifier
Texas Instruments	LM4951A	1Mb / 23P	Wide Voltage Range 1.8 Watt Audio Amplifier With Short Circuit Protection
Unisonic Technologies	PA4894	494Kb / 11P	1.8 WATT DIFFERENTIAL AUDIO POWER AMPLIFIER
Texas Instruments	LM4951	1Mb / 23P	Wide Voltage Range 1.8 Watt Audio Amplifier
Fangtek Ltd.	FT2010	759Kb / 18P	3W Class-D Audio Power Amplifier with Auto-Recovering Short-Circuit Protection

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LM4951ASD bảng dữ liệu(PDF) 1 Page - National Semiconductor (TI)

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