LINP

LINN

RINP

RINN

SD

SD

Fault

Fault

PLIMIT

PBTL

PVCC

8 to 26V

1 F

m

OUTNL

FERRITE

BEAD

FILTER

OUTPL

6W

FERRITE

BEAD

FILTER

FERRITE

BEAD

FILTER

8W

OUTR+

OUTR-

OUTL+

OUTL-

Audio

Source

TPA3113D2

GAIN0

GAIN1

OUTNR

FERRITE

BEAD

FILTER

OUTPR

6W

8W

FERRITE

BEAD

FILTER

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.

TPA3113D2

SLOS650F – AUGUST 2009 – REVISED JUNE 2016

TPA3113D2 6-W Filter-Free Stereo Class-D Audio Power Amplifier With SpeakerGuard™

1

1 Features

1

•

6-W/ch into an 8-

Ω Loads at 10% THD+N From a

10-V Supply

•

12-W into a 4-

Ω Mono Load at 10% THD+N From

a 10-V Supply

•

87% Efficient 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 Pinout Facilitates Easy Board

Layout

•

Robust Pin-to-Pin Short-Circuit Protection and

Thermal Protection With Auto Recovery Option

•

Excellent THD+N and Pop-Free Performance

•

Four Selectable, Fixed Gain Settings

•

Differential Inputs

2 Applications

•

Televisions

•

Consumer Audio Equipment

•

Monitors

3 Description

The TPA3113D2 is a 6-W (per channel) efficient,

Class-D audio power amplifier for driving bridged-tied

stereo

speakers.

Advanced

EMI

Suppression

Technology enables the use of inexpensive ferrite

bead filters 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 off the output stage if the input capacitors are

damaged or shorts exist on the inputs.

The TPA3113D2 can drive stereo speakers as low as

4

Ω. The high efficiency of the TPA3113D2, 87%,

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)

TPA3113D2

TSSOP (28)

9.70 mm × 4.40 mm

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

the end of the data sheet.

TPA3113D2 Simplified Application Schematic