TPA3110D2_17 Datasheet, PDF (1/35 Pages) Texas Instruments – 15-W Fil ter-Free Stereo Class-D Audio Power Amplifier With Speakerguard

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TPA3110D2
SLOS528F – JULY 2009 – REVISED APRIL 2017
TPA3110D2 15-W Fil ter-Free Stereo Class-D Audio Power Amplifier With Speakerguard™
1 Features
•1 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
• Televisions
• Consumer Audio Equipment
3 Description
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.
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 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 Simplified Application Schematic
1mF
OUTL+
LINP TPA3110D2
Audio
Source
OUTL-
OUTR+
OUTR-
LINN
RINP
RINN
OUTPL
OUTNL
FERRITE
BEAD
FILTER
15W
8W
GAIN0
GAIN1
PLIMIT
PBTL
OUTPR
OUTNR
FERRITE
BEAD
FILTER
15W
8W
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.