LINP

LINN

RINP

RINN

SD

SD

Fault

Fault

PLIMIT

PBTL

PVCC

8to26V

1 F

m

OUTNL

FERRITE

BEAD

FILTER

OUTPL

15W

FERRITE

BEAD

FILTER

FERRITE

BEAD

FILTER

8W

OUTR+

OUTR-

OUTL+

OUTL-

Audio

Source

TPA3110D2

GAIN0

GAIN1

OUTNR

FERRITE

BEAD

FILTER

OUTPR

15W

8W

FERRITE

BEAD

FILTER

FERRITE

BEAD

FILTER

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TPA3110D2

SLOS528E – JULY 2009 – REVISED NOVEMBER 2015

TPA3110D2 15-W Filter-Free Stereo Class-D Audio Power Amplifier With Speakerguard™

1 Features

3 Description

The TPA3110D2 is a 15-W (per channel) efficient,

1

•

15-W/ch into an 8-

Ω Loads at 10% THD+N From

Class-D audio power amplifier for driving bridged-tied

a 16-V Supply

stereo

speakers.

Advanced

EMI

Suppression

•

10-W/ch into 8-

Ω Loads at 10% THD+N From a

Technology enables the use of inexpensive ferrite

13-V Supply

bead filters at the outputs while meeting EMC

requirements. SpeakerGuard™ speaker protection

•

30-W into a 4-

Ω Mono Load at 10% THD+N From

circuitry includes an adjustable power limiter and a

a 16-V Supply

DC detection circuit. The adjustable power limiter

•

90% Efficient Class-D Operation Eliminates Need

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

for Heat Sinks

than the chip supply to limit the amount of current

•

Wide Supply Voltage Range Allows Operation

through the speaker. The DC detect circuit measures

From 8 V to 26 V

the frequency and amplitude of the PWM signal and

shuts off the output stage if the input capacitors are

•

Filter-Free Operation

damaged or shorts exist on the inputs.

•

SpeakerGuard™ Speaker Protection Includes

The TPA3110D2 can drive stereo speakers as low as

Adjustable Power Limiter Plus DC Protection

4

Ω. The high efficiency of the TPA3110D2, 90%,

•

Flow Through Pin Out Facilitates Easy Board

eliminates the need for an external heat sink when

Layout

playing music.

•

Robust Pin-to-Pin Short Circuit Protection and

The outputs are also fully protected against shorts to

Thermal Protection With Auto Recovery Option

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

•

Excellent THD+N / Pop-Free Performance

protection and thermal protection includes an auto-

•

Four Selectable, Fixed Gain Settings

recovery feature.

•

Differential Inputs

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

2 Applications

TPA3110D2

HTSSOP (28)

9.70 mm × 4.40 mm

•

Televisions

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

•

Consumer Audio Equipment

the end of the data sheet.

TPA3110D2 Simplified Application Schematic

1

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.