Datasheets
TPA321DR by: Texas Instruments

700-mW, mono, analog input Class-AB audio amplifier 8-SOIC -40 to 85

Part Details for TPA321DR by Texas Instruments

Results Overview of TPA321DR by Texas Instruments

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Applications Consumer Electronics Audio and Video Systems Entertainment and Gaming

Price & Stock for TPA321DR

Part # Distributor Description Stock Price Buy
DISTI # 296-46365-1-ND
DigiKey IC AMP CLASS AB MONO 700MW 8SOIC Min Qty: 1 Lead time: 18 Weeks Container: Digi-Reel®, Tape & Reel (TR), Cut Tape (CT) 1672
In Stock
  • 1 $1.0000
  • 10 $0.7160
  • 25 $0.6460
  • 100 $0.5691
  • 250 $0.5324
  • 500 $0.5103
  • 1,000 $0.4921
  • 2,500 $0.4729
  • 5,000 $0.4613
  • 7,500 $0.4555
  • 12,500 $0.4491
  • 17,500 $0.4453
$0.4453 / $1.0000 Buy Now
DISTI # 595-TPA321DR
Mouser Electronics Audio Amplifiers 350-mW Low-Voltage w /diff inputs A 595-TPA321D RoHS: Compliant 1243
  • 1 $1.0000
  • 10 $0.7160
  • 25 $0.6460
  • 100 $0.5700
  • 250 $0.5330
  • 500 $0.5110
  • 1,000 $0.4820
  • 2,500 $0.4610
  • 7,500 $0.4540
$0.4540 / $1.0000 Buy Now

Part Details for TPA321DR

TPA321DR CAD Models

TPA321DR Part Data Attributes

TPA321DR Texas Instruments
Buy Now Datasheet
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TPA321DR Texas Instruments 700-mW, mono, analog input Class-AB audio amplifier 8-SOIC -40 to 85
Pbfree Code Yes
Rohs Code Yes
Part Life Cycle Code Active
Ihs Manufacturer TEXAS INSTRUMENTS INC
Part Package Code SOIC
Package Description SOIC-8
Pin Count 8
Reach Compliance Code compliant
ECCN Code EAR99
HTS Code 8542.33.00.01
Samacsys Manufacturer Texas Instruments
Bandwidth-Nom 4 kHz
Consumer IC Type AUDIO AMPLIFIER
Harmonic Distortion 0.5%
JESD-30 Code R-PDSO-G8
JESD-609 Code e4
Length 4.9 mm
Moisture Sensitivity Level 1
Number of Channels 1
Number of Functions 1
Number of Terminals 8
Operating Temperature-Max 85 °C
Operating Temperature-Min -40 °C
Output Power-Nom 0.35 W
Package Body Material PLASTIC/EPOXY
Package Code SOP
Package Equivalence Code SOP8,.25
Package Shape RECTANGULAR
Package Style SMALL OUTLINE
Peak Reflow Temperature (Cel) 260
Qualification Status Not Qualified
Seated Height-Max 1.75 mm
Supply Current-Max 1.5 mA
Supply Voltage-Max (Vsup) 5.5 V
Supply Voltage-Min (Vsup) 2.5 V
Surface Mount YES
Technology CMOS
Temperature Grade INDUSTRIAL
Terminal Finish Nickel/Palladium/Gold (Ni/Pd/Au)
Terminal Form GULL WING
Terminal Pitch 1.27 mm
Terminal Position DUAL
Time@Peak Reflow Temperature-Max (s) 30
Width 3.9 mm

Alternate Parts for TPA321DR

This table gives cross-reference parts and alternative options found for TPA321DR. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of TPA321DR, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
TPA321D Texas Instruments $0.4774 700-mW, mono, analog input Class-AB audio amplifier 8-SOIC -40 to 85 TPA321DR vs TPA321D
TPA321DRG4 Texas Instruments Check for Price 0.7W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8, GREEN, PLASTIC, MS-012AA, SOIC-8 TPA321DR vs TPA321DRG4
TPA321DG4 Texas Instruments Check for Price 350-mW Mono Class-AB Audio Amplifier with Differential Inputs 8-SOIC -40 to 85 TPA321DR vs TPA321DG4

TPA321DR Related Parts

TPA321DR Frequently Asked Questions (FAQ)

  • According to TI's application notes, a 10uF ceramic capacitor in parallel with a 100nF ceramic capacitor is recommended for power supply decoupling to ensure stability and minimize noise.

  • To minimize electromagnetic interference (EMI) and ensure optimal performance, keep the power supply traces short and wide, use a solid ground plane, and place the amplifier close to the power supply. Also, keep the input and output traces separate and away from each other.

  • The maximum power dissipation of the TPA321DR is 2.5W. However, this value can be affected by the ambient temperature, PCB layout, and heat sinking. It's essential to ensure proper heat sinking and thermal management to prevent overheating.

  • Yes, the TPA321DR can be used in a bridged configuration to increase the output power. However, this requires careful consideration of the power supply, PCB layout, and thermal management to ensure reliable operation.

  • The recommended input impedance for the TPA321DR is 47kΩ to 100kΩ. This ensures optimal signal-to-noise ratio and prevents signal attenuation.

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