Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

TPA3221 Datasheet(PDF) 30 Page - Texas Instruments

Click here to check the latest version.
Part # TPA3221
Description  100-W Stereo, 200-W Mono HD-Audio, Analog-Input, Class-D Amplifier
Download  39 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TPA3221 Datasheet(HTML) 30 Page - Texas Instruments

Back Button TPA3221 Datasheet HTML 26Page - Texas Instruments TPA3221 Datasheet HTML 27Page - Texas Instruments TPA3221 Datasheet HTML 28Page - Texas Instruments TPA3221 Datasheet HTML 29Page - Texas Instruments TPA3221 Datasheet HTML 30Page - Texas Instruments TPA3221 Datasheet HTML 31Page - Texas Instruments TPA3221 Datasheet HTML 32Page - Texas Instruments TPA3221 Datasheet HTML 33Page - Texas Instruments TPA3221 Datasheet HTML 34Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 30 / 39 page
background image
30
TPA3221
SLASEE9 – JUNE 2017
www.ti.com
Product Folder Links: TPA3221
Submit Documentation Feedback
Copyright © 2017, Texas Instruments Incorporated
11 Power Supply Recommendations
11.1 Power Supplies
The TPA3221 device requires a single external power supplies for proper operation. A high-voltage supply,
PVDD, is required to power the output stage of the speaker amplifier and its associated circuitry. PVDD can be
used to supply an internal LDO to supply 5 V to AVDD and GVDD (connect VDD to PVDD).
Additionally, in LDO bypass mode an external power supply should be connected to VDD, AVDD and GVDD to
power the gate-drive and other internal digital and analog circuit blocks in the device.
The allowable voltage range for both the PVDD and VDD/AVDD/GVDD supplies are listed in the Recommended
Operating Conditions table. Ensure both the PVDD and the VDD/AVDD/GVDD supplies can deliver more current
than listed in the Electrical Characteristics table.
11.1.1 VDD Supply
VDD can be connected to PVDD in systems using only a single power supply. VDD is connected to an internal
LDO that is then used to supply AVDD and GVDD for digital and analog circuits as well as to supply the gate
drive.
To reduce device power consumption, the internal LDO can be bypassed by connecting VDD, AVDD and GVDD
to an external 5 V power supply.
Proper connection, routing, and decoupling techniques are highlighted in the TPA3221 device EVM User's Guide
SLVUAG8 (as well as the Application Information section and Layout Examples section) and must be followed as
closely as possible for proper operation and performance. Deviation from the guidance offered in the TPA3221
device EVM User's Guide, which followed the same techniques as those shown in the Application Information
section, may result in reduced performance, errant functionality, or even damage to the TPA3221 device. Some
portions of the device also require a separate power supply which is a lower voltage than the VDD supply. To
simplify the power supply requirements for the system, the TPA3221 device includes integrated low-dropout
(LDO) linear regulators to create these supplies. These linear regulators are internally connected to the VDD
supply and their outputs are presented on AVDD and DVDD pins, providing a connection point for an external
bypass capacitors. It is important to note that the linear regulators integrated in the device have only been
designed to support the current requirements of the internal circuitry, and should not be used to power any
additional external circuitry. Additional loading on these pins could cause the voltage to sag and increase noise
injection, which negatively affects the performance and operation of the device.
11.1.2 AVDD and GVDD Supplies
AVDD and GVDD can be supplied either through the internal LDO or from external 5 V power supply to power
internal analog and digital circuits and the gate-drives for the output H-bridges. Proper connection, routing, and
decoupling techniques are highlighted in the TPA3221 device EVM User's Guide SLVUAG8 (as well as the
Application Information section and Layout Examples section) and must be followed as closely as possible for
proper operation and performance. Deviation from the guidance offered in the TPA3221 device EVM User's
Guide, which followed the same techniques as those shown in the Application Information section, may result in
reduced performance, errant functionality, or even damage to the TPA3221 device.
11.1.3 PVDD Supply
The output stage of the speaker amplifier drives the load using the PVDD supply. This is the power supply which
provides the drive current to the load during playback. Proper connection, routing, and decoupling techniques are
highlighted in the TPA3221 device EVM User's Guide SLVUAG8 (as well as the Application Information section
and Layout Examples section) and must be followed as closely as possible for proper operation and
performance. Due the high-voltage switching of the output stage, it is particularly important to properly decouple
the output power stages in the manner described in the TPA3221 device EVM User's Guide SLVUAG8. The lack
of proper decoupling, like that shown in the EVM User's Guide, can results in voltage spikes which can damage
the device, or cause poor audio performance and device shutdown faults.


Similar Part No. - TPA3221

ManufacturerPart #DatasheetDescription
logo
Texas Instruments
TPA3221 TI-TPA3221 Datasheet
1Mb / 46P
[Old version datasheet]   TPA3223 200-W Stereo, 400W Mono HD Analog-Input, Class-D Amplifier
NOVEMBER 2022
More results

Similar Description - TPA3221

ManufacturerPart #DatasheetDescription
logo
Texas Instruments
TPA3223 TI-TPA3223 Datasheet
1Mb / 46P
[Old version datasheet]   TPA3223 200-W Stereo, 400W Mono HD Analog-Input, Class-D Amplifier
NOVEMBER 2022
TPA3251D2 TI1-TPA3251D2 Datasheet
1Mb / 39P
[Old version datasheet]   175-W Stereo, 350-W Mono PurePath Ultra-HD Analog-Input Class-D Amplifier
TPA3251D2 TI-TPA3251D2_15 Datasheet
1Mb / 39P
[Old version datasheet]   TPA3251D2 175-W Stereo, 350-W Mono PurePath??Ultra-HD Analog-Input Class-D Amplifier
TPA3220 TI1-TPA3220 Datasheet
863Kb / 39P
[Old version datasheet]   60-W Stereo, 100-W Peak HD Analog-Input, Pad-Down Class-D Amplifier
TAS5634 TI1-TAS5634 Datasheet
1Mb / 52P
[Old version datasheet]   300-W Stereo / 600-W Mono HD Digital Input, 58V Class-D Amplifier Power Stage
TPA3255-Q1 TI1-TPA3255-Q1_19 Datasheet
1Mb / 43P
[Old version datasheet]   315-W Stereo, 600-W mono PurePath ultra-HD analog-input
TPA3255-Q1 TI1-TPA3255-Q1 Datasheet
979Kb / 40P
[Old version datasheet]   315-W Stereo, 600-W mono PurePath ultra-HD analog-input
logo
NXP Semiconductors
TFA9882 NXP-TFA9882 Datasheet
996Kb / 31P
   3.4 W I2S input mono class-D audio amplifier
Rev. 2-20 April 2011
TFA9882 PHILIPS-TFA9882_15 Datasheet
996Kb / 31P
   3.4 W I2S input mono class-D audio amplifier
Rev. 2-20 April 2011
logo
Texas Instruments
TAS5630PHDR TI-TAS5630PHDR Datasheet
2Mb / 35P
[Old version datasheet]   300-W STEREO / 600-W MONO PurePath??HD ANALOG-INPUT POWER STAGE
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com