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LINP

LINN

RINP

RINN

SDSD

FaultFault

PLIMIT

PBTL

PVCC 8to26V

1 Fm

OUTNL

OUTPL 15W

FERRITE

BEAD

FILTER 8W

OUTR+

OUTR-

OUTL+

OUTL-

Audio

Source

TPA3110D2

GAIN0

GAIN1

OUTNR

OUTPR 15W

FERRITE

BEAD

FILTER

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An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

TPA3110D2

SLOS528F – JULY 2009 – REVISED APRIL 2017

TPA3110D2 15-W Fil ter-Free Stereo Class-D Audio Power Amplier With Speakerguard™

1 Features

• 15-W/ch into an 8- Loads at 10% THD+N FromΩ

a 16-V Supply

• 10-W/ch into 8- Loads at 10% THD+N From aΩ

13-V Supply

• 30-W into a 4- Mono Load at 10% THD+N FromΩ

a 16-V Supply

• 90% Ecient Class-D Operation Eliminates Need

for Heat Sinks

• Wide Supply Voltage Range Allows Operation

From 8 V to 26 V

• Filter-Free Operation

• SpeakerGuard™ Speaker Protection Includes

Adjustable Power Limiter Plus DC Protection

• Flow Through Pin Out Facilitates Easy Board

Layout

• Robust Pin-to-Pin Short Circuit Protection and

Thermal Protection With Auto Recovery Option

• Excellent THD+N / Pop-Free Performance

• Four Selectable, Fixed Gain Settings

• Dierential Inputs

2 Applications

• Televisions

• Consumer Audio Equipment

3 Description

The TPA3110D2 is a 15-W (per channel) ecient,

Class-D audio power amplier for driving bridged-tied

stereo speakers. Advanced EMI Suppression

Technology enables the use of inexpensive ferrite

bead lters at the outputs while meeting EMC

requirements. SpeakerGuard™ speaker protection

circuitry includes an adjustable power limiter and a

DC detection circuit. The adjustable power limiter

allows the user to set a "virtual" voltage rail lower

than the chip supply to limit the amount of current

through the speaker. The DC detect circuit measures

the frequency and amplitude of the PWM signal and

shuts o the output stage if the input capacitors are

damaged or shorts exist on the inputs.

The TPA3110D2 can drive stereo speakers as low as

4 . The high eciency of the TPA3110D2, 90%,Ω

eliminates the need for an external heat sink when

playing music.

The outputs are also fully protected against shorts to

GND, VCC, and output-to-output. The short-circuit

protection and thermal protection includes an auto-

recovery feature.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)

TPA3110D2 HTSSOP (28) 9.70 mm × 4.40 mm

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

TPA3110D2 Simplied Application Schematic

TPA3110D2

SLOS528F – JULY 2009 – REVISED APRIL 2017

www.ti.com

Product Folder Links: TPA3110D2

Table of Contents

1 Features .................................................................. 1

2 Applications ........................................................... 1

3 Description ............................................................. 1

4 Revision History..................................................... 2

5 Device Comparison Table..................................... 4

6 Pin Conguration and F unctions........................ 4

7 Specications......................................................... 5

7.1 Absolute Maximum Ratings ...................................... 5

7.2 ESD Ratings.............................................................. 6

7.3 Recommended Operating Conditions ...................... 6

7.4 Thermal Information.................................................. 6

7.5 DC Characteristics: 24 V.......................................... 6

7.6 DC Characteristics: 12 V.......................................... 7

7.7 AC Characteristics: 24 V.......................................... 7

7.8 AC Characteristics: 12 V.......................................... 7

7.9 Typical Characteristics ............................................. 8

8 Parameter Measurement Information ................ 14

9 Detailed Description ............................................ 14

9.1 Overview ................................................................. 14

9.2 Functional Block Diagram ....................................... 14

9.3 Feature Description................................................. 15

9.4 Device Functional Modes........................................ 20

10 Application and Implementation........................ 21

10.1 Application Information.......................................... 21

10.2 Typical Applications ............................................. 21

11 Power Supply Recommendations ..................... 25

11.1 Power Supply Decoupling, C

S............................. 25

12 Layout................................................................... 25

12.1 Layout Guidelines ................................................. 25

12.2 Layout Example .................................................... 26

13 Device and Documentation Support ................. 27

13.1 Device Support .................................................... 27

13.2 Documentation Support ........................................ 27

13.3 Community Resources.......................................... 27

13.4 Trademarks ........................................................... 27

13.5 Electrostatic Discharge Caution............................ 27

13.6 Glossary ................................................................ 27

14 Mechanical, Packaging, and Orderable

Information ........................................................... 27

4 Revision History

NOTE: Page numbers for previous revisions may dier from page numbers in the current version.

Changes from Revision E (November 2015) to Revision F Page

• Added Measurement note added to characterization graphs............................................................................................... 10

• Added New Output Power vs Supply Voltage Characterization graph ................................................................................ 10

• Added footnote for heatsink and EVM ................................................................................................................................. 14

Changes from Revision D (July 2012) to Revision E Page

• Added section, table, section,Pin Conguration and Functions ESD Ratings Feature Description Device Functional

Modes Application and Implementation Power Supply Recommendations Layout Device, section, section, section,

and Documentation Support Mechanical, Packaging, and Orderable Informationsection, and section .............................. 1

Changes from Revision C (August 2010) to Revision D Page

• Added < 10 V/ms to VIin the Absolute Maximum Ratings table, added Note 2 .................................................................... 5

• Changed the PBTL Select section. Added text - "The voltage slew.......series with the terminals." .................................... 19

• Added a 100k resistor to AVCC Pin 14 and Note 1 to ......................................................................................ΩFigure 46 24

Changes from Revision B (July 2010) to Revision C Page

• Replaced the Dissipations Ratings table with the Thermal Information table ........................................................................ 6

Changes from Revision A (July 2009) to Revision B Page

• Added slew rate adjustment information .............................................................................................................................. 17

• Added AVCC to Pin 7 of ......................................................................................................................................Figure 46 24

TPA3110D2

www.ti.com

SLOS528F – JULY 2009 – REVISED APRIL 2017

Product Folder Links: TPA3110D2

Changes from Original (July 2009) to Revision A Page

• Changed Changed the Stereo Class-D Amplier with BTL Output and Single-Ended Input illustration -Figure 42

Corrected the pin names. ..................................................................................................................................................... 21

• Changed Changed the Stereo Class-D Amplier with PBTL Output and Single-Ended Input illustration -Figure 46

Corrected the pin names. ..................................................................................................................................................... 24