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LM4872 Product Folder

1 Watt Audio Power Amplifier in micro SMD package

Generic P/N 4872

Parametric Table

Temperature Min (deg C)	-40
Temperature Max (deg C)	85
Channels (Channels)	1
User Supply (Volt)	5
Supply Range	+2.0 - +5.5 V
PowerAtFourOhms OnePercentTHD (Watt)	-
PowerAtEightOhms OnePercentTHD (Watt)	1.20
PowerAtFourOhms TenPercentTHD (Watt)	.75

PowerAtEightOhms TenPercentTHD (Watt)	1.50
SNR (dB)	98
SNR Conditions	-
PSRR (dB)	65
PSRR Conditions	-
THD (%)	.10
THD Conditions	Po=.25W@Vs=-5V, R=8ohms
Audio Mux	-

Datasheet

Title	Size in Kbytes	Date	View Online	Download	Receive via Email
LM4872 Boomer ® Audio Power Amplifier Series 1 Watt Audio Power Amplifier in micro SMD package	465 Kbytes	7-Oct-02	View Online	Download	Receive via Email
LM4872 Boomer ® Audio Power Amplifier Series 1 Watt Audio Power Amplifier in micro SMD package (JAPANESE)	509 Kbytes

If you have trouble printing or viewing PDF file(s), see Printing Problems.

Package Availability, Models, Samples & Pricing

Part Number

Package

Status

Models

Samples &
Electronic
Orders

Budgetary Pricing

Std
Pack
Size

Package
Marking

Type

Pins

MSL/Lead-Free Availability

Lead
Time

Qty

SPICE

IBIS

Qty

$US each

LM4872IBP

microSMD

Status

Full production

N/A

1K+

$0.65

reel
of
250

XVG
I A

10 weeks

LM4872IBPX

microSMD

Status

Full production

N/A

1K+

$0.65

reel
of
3000

XVG
I A

10-12 weeks

250000

LM4872ITP

microSMD

Status

Full production

N/A

reel
of
N/A

XVG
I D6

10 weeks

LM4872ITPX

microSMD

Status

Full production

N/A

reel
of
N/A

XVG
I D6

10-12 weeks

50000

General Description

The LM4872 is a bridge-connected audio power amplifier capable of delivering 1 W of continuous average power to an 8 load with less than .2% (THD) from a 5V power supply.

Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. Since the LM4872 does not require output coupling capacitors or bootstrap capacitors. It is optimally suited for low-power portable applications.

The LM4872 features an externally controlled, low-power consumption shutdown mode, as well as an internal thermal shutdown protection mechanism.

The unity-gain stable LM4872 can be configured by external gain-setting resistors.

Features

micro SMD package (see App. note AN-1112)
5V - 2V operation
No output coupling capacitors or bootstrap capacitors.
Unity-gain stable
External gain configuration capability

Key Specification

Power Output at 0.2% THD	1W (typ)
Shutdown Current	0.01µA (typ)

Applications

Cellular Phones
Portable Computers
Low Voltage Audio Systems

Reliability Metrics

Part Number	Process	Sample Size (EFR)	Device Hours	Long Term Failure Rates (FITS)	MTTF
LM4872IBP	CS065	8800	600000	6	169643205
LM4872IBPX	CS065	8800	600000	6	169643205
LM4872ITP	CS065	8800	600000	6	169643205
LM4872ITPX	CS065	8800	600000	6	169643205

For more information on Reliablitity Metrics, please click here.

Application Notes

Title	Size in Kbytes	Date	View Online	Download	Receive via Email
AN-1112: Application Note 1112 Micro SMD Wafer Level Chip Scale Package	309 Kbytes	20-Oct-03	View Online	Download	Receive via Email
Application Note 1112 Micro SMD Wafer Level Chip Scale Package (JAPANESE)	248 Kbytes

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[Information as of 15-Jan-2004]

LM4872 Product Folder