TPA3110D2 15-W Filter-Free Stereo Class-D Audio Power Amplifier With Speakerguardâ„¢ (Rev. E)0 pages

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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

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The TPA3110D2 is a 15-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.

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15-W/ch into an 8-Ω Loads at 10% THD+N From
a 16-V Supply
10-W/ch into 8-Ω Loads at 10% THD+N From a
13-V Supply
30-W into a 4-Ω Mono Load at 10% THD+N From
a 16-V Supply
90% 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 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
Differential Inputs

2 Applications
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The TPA3110D2 can drive stereo speakers as low as
4 Ω. The high efficiency of the TPA3110D2, 90%,
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 autorecovery feature.
Device Information(1)
PART NUMBER
TPA3110D2

Televisions
Consumer Audio Equipment

PACKAGE

BODY SIZE (NOM)

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 Simplified Application Schematic
1mF

OUTL+
OUTL-

LINN

OUTR+

Audio
Source

LINP

RINP

OUTR-

RINN

TPA3110D2

OUTPL
OUTNL

FERRITE
BEAD
FILTER

15W
8W

FERRITE
BEAD
FILTER

15W
8W

GAIN0
GAIN1
OUTPR
OUTNR
PLIMIT
PBTL
Fault
SD

PVCC

8 to 26V

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.