TPA3110D2

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15-W stereo, 30-W mono, 8- to 26-V supply, analog input Class-D audio amplifier w/ SpeakerGuard™

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Product details

Parameters

Audio input type Analog Input Architecture Class-D Speaker channels (Max) Stereo Power stage supply (Max) (V) 26 Power stage supply (Min) (V) 8 Load (Min) (ohms) 4 Output power (W) 10 SNR (dB) 102 THD + N @ 1 kHz (%) 0.1 Iq (Typ) (mA) 10 Control interface Hardware Closed/open loop Closed Analog supply (Min) (V) 8 Analog supply (Max) (V) 26 PSRR (dB) 70 Operating temperature range (C) -40 to 85 open-in-new Find other Speaker amps

Package | Pins | Size

HTSSOP (PWP) 28 43 mm² 4.4 x 9.7 open-in-new Find other Speaker amps

Features

  • 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

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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.

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For a smaller, 10-W speaker amplifier that also provides lower bill of materials costs, see the TPA3138D2

For a 15-W speaker amplifier with low-idle power dissipation to extend battery life, see the TPA3129D2

Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 7
Type Title Date
* Datasheet TPA3110D2 15-W Fil ter-Free Stereo Class-D Audio Power Amplifier With Speakerguard™ datasheet (Rev. F) Apr. 25, 2017
Application note Using Thermal Calculation Tools for Analog Components (Rev. A) Aug. 30, 2019
Application note Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) Aug. 26, 2019
Application note AN-1849 An Audio Amplifier Power Supply Design (Rev. C) Jun. 27, 2019
Technical articles What are the building blocks of Bluetooth speakers? Feb. 21, 2017
User guide TPA3110D2EVM Audio Amplifier Evaluation Board (Rev. B) Aug. 13, 2015
Application note AN-1737 Managing EMI in Class D Audio Applications (Rev. A) May 01, 2013

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARD Download
149
Description

The TPA3110D2 evaluation module consists of a single 15-W, Class-D, stereo audio power amplifier complete with a small number of external components mounted on a circuit board that can be used to directly drive a speaker with an external analog audio source as the input. The EVM’s default (...)

Features
  • Efficient Class-D Operation
  • Support for Filter-Free Operation
  • SpeakerGuardTM Speaker Protection circuitry
  • Four Selectable, Fixed Gain Settings
  • Wide Operating Voltage: 8 V - 26 V
  • Thermal and Short Circuit Protection with Auto Recovery Feature

Design tools & simulation

SIMULATION MODEL Download
SLAM052.TSC (35 KB) - TINA-TI Reference Design
SIMULATION MODEL Download
SLAM053.ZIP (22 KB) - TINA-TI Spice Model
SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

Reference designs

REFERENCE DESIGNS Download
Value Soundbar Reference Design Kit for Stereo or 2.1 Applications
TIDA-00089 This is a Value Soundbar reference design kit for Stereo or 2.1 applications, which can easily be reapplied for PC speakers, or MP3 Docks. This is a complete reference design, including all programming hardware required, so you can get to working within minutes, a prototype within hours, and (...)
document-generic Schematic

CAD/CAE symbols

Package Pins Download
HTSSOP (PWP) 28 View options

Ordering & quality

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  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
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  • Qualification summary
  • Ongoing reliability monitoring

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

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