LINP

LINN

RINP

RINN

SD

SD

Fault

Fault

PLIMIT

PBTL

PVCC

8 to 26V

1 F

m

OUTNL

FERRITE

BEAD

FILTER

OUTPL

15W

FERRITE

BEAD

FILTER

FERRITE

BEAD

FILTER

8W

OUTR+

OUTR-

OUTL+

OUTL-

Audio

Source

TPA3110D2-Q1

GAIN0

GAIN1

OUTNR

FERRITE

BEAD

FILTER

OUTPR

15W

8W

FERRITE

BEAD

FILTER

FERRITE

BEAD

FILTER

Product

Folder

Sample &

Buy

Technical

Documents

Tools &

Software

Support &

Community

TPA3110D2-Q1

SLOS794B – SEPTEMBER 2012 – REVISED SEPTEMBER 2015

TPA3110D2-Q1 15-W Filter-Free Stereo Class-D

Audio Power Amplifier With SpeakerGuard™

1 Features

3 Description

The TPA3110D2-Q1 is a 15-W (per channel) efficient,

1

•

Qualified for Automotive Applications

Class-D audio power amplifier for driving bridged-tied

•

AEC-Q100 Qualified With the Following Results:

stereo

speakers.

Advanced

EMI

suppression

–

Device Temperature Grade 1: –40°C to 125°C

technology enables the use of inexpensive ferrite

Ambient Operating Temperature Range

bead filters at the outputs while meeting EMC

requirements.

SpeakerGuard

protection

circuitry

–

Device HBM ESD Classification Level H2

includes an adjustable power limiter and a DC

–

Device CDM ESD Classification Level C2

detection circuit. The adjustable power limiter allows

•

15-W/ch Into 8-

Ω Loads at 10% THD+N From a

the user to set a virtual voltage rail lower than the

16-V Supply

chip supply to limit the amount of current through the

speaker.

The

DC

detect

circuit

measures

the

•

10-W/ch Into 8-

Ω Loads at 10% THD+N From a

frequency and amplitude of the PWM signal and

13-V Supply

shuts off the output stage if the input capacitors are

•

30-W Into a 4-

Ω Mono Load at 10% THD+N From

damaged or shorts exist on the inputs.

a 16-V Supply

The TPA3110D2-Q1 can drive stereo speakers as

•

90% Efficient Class-D Operation Eliminates Need

low as 4

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

for Heat Sinks

eliminates the need for an external heat sink when

•

Wide Supply Voltage Range Allows Operation

playing music.

from 8 V to 26 V

The outputs are also fully protected against shorts to

•

Filter-Free Operation

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

•

SpeakerGuard™ Protection Circuitry Includes

protection and thermal protection includes an auto-

recovery feature.

Adjustable Power Limiter Plus DC Protection

•

Flow Through Pin Out Facilitates Easy Board

Device Information(1)

Layout

PART NUMBER

PACKAGE

BODY SIZE (NOM)

•

Robust Pin-to-Pin Short-Circuit Protection and

TPA3110D2-Q1

HTSSOP (28)

9.70 mm × 4.40 mm

Thermal Protection with Auto Recovery Option

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

•

Excellent THD+N and Pop-Free Performance

the end of the data sheet.

•

Four Selectable Fixed Gain Settings

TPA3110D2-Q1 Simplified Application Schematic

•

Differential Inputs

2 Applications

•

Automotive Noise Generation for HEV/EV

•

Automotive Emergency Call Systems (eCall)

•

Automotive Infotainment Systems (i.e. Head Unit,

Connectivity Gateway, Cluster, Telematics,

Navigation)

•

ADAS Noise Generation for Blind Spot Detection,

Security and Alarm Systems

•

Professional Audio Equipment (Performance

Amplifiers, Premium Microphones)

•

Aerospace and Aviation Audio Systems

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.