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TPA311 Status: ACTIVE

350-mW Mono Class-AB Audio Amplifier


      
         
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Datasheet

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 TPA301 TPA311TPA321 
Speaker ChannelsMono  Mono  Mono  
Headphone ChannelsNone  None  None  
Output Power(W)0.350  0.350  0.350  
Load(Min)(ohms)8  8  8  
Supply(V)2.5 - 5  2.5 - 5.5  2.5 - 5.5  
Iq per channel(Typ)(mA)0.7  0.35  0.7  
ISD(uA)0.15  7  0.15  
PSRR(dB)85  85  85  
Operating Temp Range(Celsius)  -40 to 85  
Pin/Package8MSOP-PowerPAD, 8SOIC  8MSOP-PowerPAD, 8SOIC  8MSOP-PowerPAD, 8SOIC  
 SamplesSamplesSamples
 InventoryInventoryInventory

Product Information

Features

  • Fully Specified for 3.3-V and 5-V Operation
  • Wide Power Supply Compatibility 2.5 V - 5.5 V
  • Output Power for RL = 8
    • 350 mW at VDD = 5 V, BTL
    • 250 mW at VDD = 5 V, SE
    • 250 mW at VDD = 3.3 V, BTL
    • 75 mW at VDD = 3.3 V, SE
  • Shutdown Control
    • IDD = 7 µA at 3.3 V
    • IDD = 60 µA at 5 V
  • BTL to SE Mode Control
  • Integrated Depop Circuitry
  • Thermal and Short-Circuit Protection
  • Surface Mount Packaging
    • SOIC
    • PowerPADTM MSOP

PowerPAD is a trademark of Texas Instruments Incorporated.

Description

The TPA311 is a bridge-tied load (BTL) or single-ended (SE) audio power amplifier developed especially for low-voltage applications where internal speakers and external earphone operation are required. Operating with a 3.3-V supply, the TPA311 can deliver 250-mW of continuous power into a BTL 8- load at less than 1% THD+N throughout voice band frequencies. Although this device is characterized out to 20 kHz, its operation was optimized for narrower band applications such as cellular communications. The BTL configuration eliminates the need for external coupling capacitors on the output in most applications, which is particularly important for small battery-powered equipment. A unique feature of the TPA311 is that it allows the amplifier to switch from BTL to SE on the fly when an earphone drive is required.

View All Description in Datasheet

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusPrice | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
TPA311DACTIVE0.33 | 1kuSOIC (D) | 8 View 75 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
TPA311DG4ACTIVE0.33 | 1kuSOIC (D) | 8 View 75 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
TPA311DGNACTIVE0.43 | 1kuMSOP-PowerPAD (DGN) | 8 View 80 | TUBE Download CAD Format for this Symbol 
TPA311DGNG4ACTIVE0.43 | 1kuMSOP-PowerPAD (DGN) | 8 View 80 | TUBE Download CAD Format for this Symbol 
TPA311DGNRACTIVE0.40 | 1kuMSOP-PowerPAD (DGN) | 8 View 2500 | LARGE T&R Download CAD Format for this Symbol Purchase Samples
TPA311DGNRG4ACTIVE0.40 | 1kuMSOP-PowerPAD (DGN) | 8 View 2500 | LARGE T&R Download CAD Format for this Symbol Purchase Samples
TPA311DRACTIVE0.30 | 1kuSOIC (D) | 8 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this Footprint
TPA311DRG4ACTIVE0.30 | 1kuSOIC (D) | 8 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this Footprint

* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

Inventory

Reported Distributor Inventory as of 10:20 AM GMT, 25 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksTPA311D
AmericasNewark 863
Rochester Electronics >1k
AsiaFarnell Asia 863
WPI 45
EuropeAvnet-SILICA >1k
WorldwideDigiKey 210
TI Lead Time*: 20 WeeksTPA311DG4
AmericasAvnet 585
AsiaFarnell Asia 14
EuropeEBV Elektronik 525
WorldwideDigiKey  Available
TI Lead Time*: 14 WeeksTPA311DGN
AmericasAvnet 393
Newark 757
Rochester Electronics >1k
AsiaFarnell Asia 757
WorldwideDigiKey 26
Mouser Electronics 207
TI Lead Time*: 14 WeeksTPA311DGNG4
AmericasAvnet >1k
WorldwideDigiKey  Available
Mouser Electronics 40
TI Lead Time*: 20 WeeksTPA311DGNR
AmericasRochester Electronics >1k
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksTPA311DGNRG4
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksTPA311DR
AmericasRochester Electronics >1k
WorldwideDigiKey >1k
TI Lead Time*: 20 WeeksTPA311DRG4
WorldwideDigiKey  Available
View all Distributors  

** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.

Quality & Lead (Pb)-Free Data

 Product ContentDPPM / MTBF / FIT Rate
DeviceEco Plan* Lead / Ball FinishMSL Rating / Peak ReflowDetailsDetails
TPA311D RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TPA311DG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TPA311DGN RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TPA311DGNG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TPA311DGNR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TPA311DGNRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TPA311DR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TPA311DRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView

* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.

If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.

Technical Documents

Most useful technical documents for TPA311 Help

Datasheet

Application Notes

View Application Notes for Class-AB Speaker Amplifiers

User Guides

Tools & Software

NamePart # Company Tool / Software Type
TPA311 Evaluation Module (EVM)TPA311EVMTexas InstrumentsDevelopment Boards/EVMs
Quick Search Selection Tool for AudioAUDIO_SELECTION_TOOLTexas InstrumentsFree Evaluation Tools

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