LM4819 - 350mW Audio Power Amplifier with Shutdown Mode
Datasheet Packaging Samples & Pricing Eval. Boards Reliability Knowledge Base

Features
•LLP, SOP, and MSOP surface mount packaging.
•Switch on/off click suppression.
•Unity-gain stable.
•Minimum external components.

Key Specification

THD+N at 1kHz, 350mW continuous average output power into 16

10% (max)

THD+N at 1kHz, 300mW continuous average output power into 8

10% (max)

Shutdown Current

0.7µA (typ)

General Description

The LM4819 is a mono bridged power amplifier that is capable of delivering 350mWRMS output power into a 16 load or 300mWRMS output power into an 8 load with 10% THD+N from a 5V power supply. More...


Applications

•General purpose audio
•Portable electronic devices
•Information Appliances (IA)
  Typical Application
click for larger image


ParametersValues
Power@ 8Ohms, 1% THD 0.25 Watt
Power@ 8Ohms, 10% THD 0.3 Watt
THD 1 %
Channels 1 Channels
Supply Range +2.0 - +5.5 V
THD Conditions f=1kHz, Avd=2, Po = 0.27Wrms
User Supply 5 Volt
Shutdown Type High
Temperature Min -40 deg C
Temperature Max 85 deg C


Typical Performance

click for larger image


  Connection Diagram
*click for larger image


*click for larger image



Datasheet
RoHS Compliance Information Size in KbytesDate Click link below to Download
LM4819 350mW Audio Power Amplifier with Shutdown Mode 616
Kbytes		 17-Apr-02 Download

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Package Availability, Models, Samples & Pricing
Part NumberPackageFactory Lead TimeModelsSamples &
Electronic
Orders		Budgetary PricingStd
Pack
Size		Package
Marking
Format
TypePinsSpec.MSL
Rating		Peak
Reflow		RoHS
Report		CAD
Symbols		WeeksQtyQty$US each
LM4819MBD350mW Audio Power Amplifier with Shutdown ModeFull productionN/A
 
Buy Now 		1+$60.001-
6 weeksN/A
LM4819LDLLP8NOPB3260RoHS Download Full productionN/A
 
Buy Now 		1K+$0.30reel
of
1000		XYTT
G19
12 weeks2500
LM4819LDXLLP8NOPB3260RoHS Download Full productionN/A
 
Buy Now 		1K+$0.30reel
of
4500		XYTT
G19
12 weeksN/A
LM4819MSOIC NARROW8NOPB1260RoHS Download Lifetime buyN/A
 
Buy Now 		1K+$0.25rail
of
95		NSZXTT
LM48
19M
12 weeks2000
LM4819MXSOIC NARROW8NOPB
STD		1
1		260
235		RoHS Download Full productionN/A
 
Buy Now 		1K+$0.25reel
of
2500		NSZXTT
LM48
19M
10 weeks3000
LM4819MMMINI SOIC8NOPB1260RoHS Download Full productionN/A
Samples
Buy Now 		1K+$0.25reel
of
1000		ZXTT
G19
12 weeks7500
LM4819MMXMINI SOIC8NOPB1260RoHS Download Full productionN/A
 
Buy Now 		1K+$0.25reel
of
3500		ZXTT
G19
12 weeks25000

Obsolete Versions

Obsolete PartAlternate Part or SupplierSourceLast Time Buy Date
LM4819M
NONE
NATIONAL SEMICONDUCTOR
01 Dec 2009

General Description

The LM4819 is a mono bridged power amplifier that is capable of delivering 350mWRMS output power into a 16 load or 300mWRMS output power into an 8 load with 10% THD+N from a 5V power supply.

The LM4819 Boomer audio power amplifier is designed specifically to provide high quality output power and minimize PCB area with surface mount packaging and a minimal amount of external components. Since the LM4819 does not require output coupling capacitors, bootstrap capacitors or snubber networks, it is optimally suited for low-power portable applications.

The closed loop response of the unity-gain stable LM4819 can be configured using external gain-setting resistors. The device is available in LLP, MSOP, and SO package types to suit various applications.

Reliability Metrics

Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
LM4819LDCS065238968520440200011249079519
LM4819LDXCS065238968520440200011249079519
LM4819MCS065238968520440200011249079519
LM4819MMCS065238968520440200011249079519
LM4819MMXCS065238968520440200011249079519
LM4819MXCS065238968520440200011249079519

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.


[Information as of 8-Nov-2009]