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TPA321D, in 3D

TPA321D

Texas Instruments

-40℃~+85℃ 1 Pair Differential Inputs 1%、1.3% 1-Channel 2.5V~5.5V 58.3% 700mWx1@8Ω 78dB、85dB Class AB Enable/shutdown function SOIC-8 Audio Amplifiers ROHS

Extended
DatasheetJLCPCBLCSCti/TPA321D
Category
Audio Amplifiers
Package
SOIC-8
Pins
8

Overview

The TPA321D is an audio Amplifier made by Texas Instruments in a SOIC-8 package with 8 pins. -40℃~+85℃ 1 Pair Differential Inputs 1%、1.3% 1-Channel 2.5V~5.5V 58.3% 700mWx1@8Ω 78dB、85dB Class AB Enable/shutdown function SOIC-8 Audio Amplifiers ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:TPA321DG4, from EasyEDA) and its footprint (Package_SO:SOIC-8_3.9x4.9mm_P1.27mm, from KiCad's library), ready for a KiCad board. 55 are in stock at JLCPCB (part C2868410). 2 open-source boards in 2 repositories on GitHub use it.

Symbol

VO-8GND7VDD6VO+5IN-4IN+3BYPASS2SHUTDOWN1
EasyEDA_Cloud:TPA321DG4From EasyEDA

Footprint

12345678
Package_SO:SOIC-8_3.9x4.9mm_P1.27mmFrom KiCad's library

Parameters

11
Class
Class AB
Efficiency
58.3%
Features
Enable/shutdown function
Number of Inputs
1 Pair Differential Inputs
Operating Temperature
-40℃~+85℃
Output Power
700mWx1@8Ω
Power Supply Rejection Ratio (PSRR)
78dB
Quiescent Current
1.5mA
Speaker Channels
1-Channel
Total Harmonic Distortion + Noise (THD+N)
1%
Voltage - Supply
2.5V~5.5V

Order codes

2

Pinout

8
The pins of the TPA321D
PinNameType
1SHUTDOWNUnspecified
2BYPASSUnspecified
3IN+Unspecified
4IN-Unspecified
5VO+Unspecified
6VDDUnspecified
7GNDUnspecified
8VO-Unspecified

Open-source boards using it

All 2
  • 2 layers14 × 1 mmVectorscope, the printed circuit board in 3D

    Vectorscope

    shabaz123/Vectorscope_GuyFawkes

    A reimplementation of the Vectorscope from https://github.com/Hack-a-Day/Vectorscope

    81 parts3GPL-3.0
  • 2 layers60 × 121.3 mmEko badge-2024, the printed circuit board in 3D

    Eko badge-2024

    ElectronicCats/badge-EKOParty-2024

    Badge Oficial de EkoParty 2024

    63 parts2

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Questions

Is there a KiCad symbol and footprint for the TPA321D?

Yes. The symbol is EasyEDA_Cloud:TPA321DG4 and the footprint Package_SO:SOIC-8_3.9x4.9mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the TPA321D?

SOIC-8, with 8 pins. Its footprint is drawn on this page.

Where is the TPA321D datasheet?

Texas Instruments publishes it: the Datasheet link on this page opens it.

Where can I order the TPA321D?

JLCPCB lists it as part C2868410, with 55 in stock; the sellers' links on this page open their listings.

What can replace the TPA321D?

Parts like it in the library: the TC8002D by FM, the LM833D by onsemi, the LM4871MX by Texas Instruments and the FM8002E by Shenzhen Fuman Elec. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the TPA321D?

2 boards in 2 repositories on GitHub; the most starred are listed on this page, with their KiCad files.

Parts like it

8