LM4863   
Dual 2.2W Audio Amplifier Plus Stereo Headphone Function 		Click link to Download

Features * Not recommended for new designs. Contact NSC Audio Marketing.
•Stereo headphone amplifier mode
•"Click and pop" suppression circuitry
•Unity-gain stable
•Thermal shutdown protection circuitry
•SOIC, TSSOP, exposed-DAP TSSOP, and LLP packages

Description

The LM4863 is a dual bridge-connected audio power amplifier which, when connected to a 5V supply, will deliver 2.2W to a 4 load or 2.5W to a 3 load with less than 1.0% THD+N. In addition, the headphone input pin allows the amplifiers to operate in single-ended mode when driving stereo headphones.

Boomer audio power amplifiers were designed specifically to provide high quality output power from a surface mount package while requiring few external components. To simplify audio system design, the LM4863 combines dual bridge speaker amplifiers and stereo headphone amplifiers on one chip.

The LM4863 features an externally controlled, low-power consumption shutdown mode, a stereo headphone amplifier mode, and thermal shutdown protection. It also utilizes circuitry to reduce "clicks and pops" during device turn-on.

Key Specification

PO at 1% THD+N

  

LM4863LQ, 3, 4 loads

2.5W(typ), 2.2W(typ)

LM4863MTE, 3, 4 loads

2.5W(typ), 2.2W(typ)

LM4863MTE, 8 load

1.1W(typ)

LM4863, 8

1.1W(typ)

Single-ended mode THD+N at 75mW into 32

0.5%(max)

Shutdown current

0.7µA(typ)

Supply voltage range

2.0V to 5.5V

Applications
•Multimedia monitors
•Portable and desktop computers
•Portable televisions
Also Recommended
LM4938DC Volume Control, Stereo Switchable Bridged/single-ended Power Amplifiers & Selectable Internal/ext



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Also Recommended
LM4938DC Volume Control, Stereo Switchable Bridged/single-ended Power Amplifiers & Selectable Internal/ext

Typical Application
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Connection Diagram
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Typical Performance
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ParametersValues
Power@ 4Ohms, 1% THD 2.2 Watt
Power@ 8Ohms, 1% THD 1.1 Watt
Power@ 4Ohms, 10% THD 2.7 Watt
Power@ 8Ohms, 10% THD 1.5 Watt
THD 0.3 %
PSRR 67 dB
SNR 98 dB
Channels 2 Channels
Supply Range +2.0 - +5.5 V
THD Conditions Po=2W @ Vs=5V, R=4 ohms, 20Hz-20kHz
SNR Conditions Pout=1.1W
User Supply 5 Volt
Shutdown Type High
Temperature Min -40 deg C
Temperature Max 85 deg C

Datasheet
TitleSizeDateOther
Language
LM4863 Boomer ® Audio Power Amplifier Series Dual 2.2W Audio Amplifier Plus Stereo Headphone Function1165
Kbytes		31-Oct-06日本語


Featured Application Notes
TitleSizeDateOther
Language
AN-1611: Application Note 1611 LM48555 Evaluation Board734
Kbytes		4-Apr-07 


More Application Notes
TitleSizeDateOther
Language
AN-1611: Application Note 1611 LM48555 Evaluation Board734
Kbytes		4-Apr-07 

Part Number(s)
(NSID)		Top ViewAvailabilityCurrent Reported StockBudgetary PricingStandard Pack Size
LM4863LQ/NOPB
LM4863LQ

RoHS



LLP		Full production
Lead Time: 6 weeks

Samples
DistributorRegionQty
DIGIKEYWorldwide0
$1.41 each at 1K+ pcsreel
of
1000
LM4863M/NOPB

RoHS



SOIC WIDE		Lifetime buy
Lead Time: 6 weeks

 
DistributorRegionQty
ARROWWorldwide90
DIGIKEYWorldwide157
NEWARKAmericas210
RS COMPONENTSWorldwide14
$1.46 each at 1K+ pcsrail
of
45
LM4863MX/NOPB
LM4863MX

RoHS



SOIC WIDE		Lifetime buy
Lead Time: 16 weeks

 
DistributorRegionQty
DIGIKEYWorldwide0
TECHMOSAAsia Pacific1000
$1.46 each at 1K+ pcsreel
of
1000
LM4863MT/NOPB

RoHS



TSSOP		Lifetime buy
Lead Time: 6 weeks

 
DistributorRegionQty
DIGIKEYWorldwide0
FUTUREWorldwide365
$1.03 each at 1K+ pcsrail
of
73
LM4863MTX/NOPB
LM4863MTX

RoHS



TSSOP		Lifetime buy
Lead Time: 6 weeks

 
DistributorRegionQty
DIGIKEYWorldwide0
$1.03 each at 1K+ pcsreel
of
2500
LM4863MTE/NOPB

RoHS



TSSOP EXP PAD		Lifetime buy
Lead Time: 8 weeks

 
DistributorRegionQty
ARROWWorldwide2963
DIGIKEYWorldwide0
KEIKONGAsia Pacific322
TECHMOSAAsia Pacific40
$1.08 each at 1K+ pcsrail
of
73
LM4863MTEX/NOPB
LM4863MTEX

RoHS



TSSOP EXP PAD		Lifetime buy
Lead Time: 6 weeks

 
DistributorRegionQty
ARROWWorldwide2500
DIGIKEYWorldwide0
KEIKONGAsia Pacific17500
TECHMOSAAsia Pacific2500
$1.08 each at 1K+ pcsreel
of
2500

Obsolete Versions
Obsolete PartAlternate Part or SupplierSourceLast Time Buy Date
LM4863M
TPA0212
National Semiconductor
30 Nov 2009
LM4863MT
TPA0212
National Semiconductor
30 Nov 2009
LM4863MTE
TPA0212
National Semiconductor
30 Nov 2009
LM4863MTEX
TPA0212
National Semiconductor
30 Nov 2009
LM4863MTX
TPA0212
National Semiconductor
30 Nov 2009
LM4863MX
TPA0212
National Semiconductor
30 Nov 2009
LM4863N
NONE
NATIONAL SEMICONDUCTOR
08 Mar 2005

Part Number(s)
(NSID)		Top ViewTypePinsMSL RatingPeak ReflowRoHSCAD SymbolsModelsPackage
Marking
Format
LM4863LQ/NOPB
LM4863LQ
LLP243
1		260
235		RoHSN/AN/A
NS
UZXYTT
L4863
LM4863M/NOPB
SOIC WIDE163260RoHSN/AN/A
NSUZXYTT
LM4863M
LM4863MX/NOPB
LM4863MX
SOIC WIDE163
2A		260
220		RoHSN/AN/A
NSUZXYTT
LM4863M
LM4863MT/NOPB
TSSOP201260RoHSN/AN/A
NSUZXYTT
LM4863
MT
LM4863MTX/NOPB
LM4863MTX
TSSOP201
1		260
260		RoHSN/AN/A
NSUZXYTT
LM4863
MT
LM4863MTE/NOPB
TSSOP EXP PAD201260RoHSN/AN/A
NSUZXYTT
LM4863
MTE
LM4863MTEX/NOPB
LM4863MTEX
TSSOP EXP PAD201
1		260
260		RoHSN/AN/A
NSUZXYTT
LM4863
MTE

Reliability Metrics
Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
LM4863LQCS065238968520440200011249079519
LM4863MCS0800305350028105002797458048
LM4863MTCS0800305350028105002797458048
LM4863MTECS0800305350028105002797458048
LM4863MTEXCS0800305350028105002797458048
LM4863MTXCS0800305350028105002797458048
LM4863MXCS0800305350028105002797458048

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.


Obsolete Versions
Obsolete PartAlternate Part or SupplierSourceLast Time Buy Date
LM4863M
TPA0212
National Semiconductor
30 Nov 2009
LM4863MT
TPA0212
National Semiconductor
30 Nov 2009
LM4863MTE
TPA0212
National Semiconductor
30 Nov 2009
LM4863MTEX
TPA0212
National Semiconductor
30 Nov 2009
LM4863MTX
TPA0212
National Semiconductor
30 Nov 2009
LM4863MX
TPA0212
National Semiconductor
30 Nov 2009
LM4863N
NONE
NATIONAL SEMICONDUCTOR
08 Mar 2005

[Information as of 22-Nov-2009]