TPA3117D2

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15-W stereo, 8- to 26-V supply, analog input Class-D audio amplifier w/ filter free & 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) 15 SNR (dB) 102 THD + N @ 1 kHz (%) 0.1 Iq (Typ) (mA) 10 Control interface Hardware Analog supply (Min) (V) 8 Analog supply (Max) (V) 26 Power to parallel bridge tied load (Max) (W) 30 PSRR (dB) 72 Operating temperature range (C) -40 to 85 open-in-new Find other Speaker amps

Package | Pins | Size

VQFN (RHB) 32 25 mm² 5 x 5 open-in-new Find other Speaker amps

Features

  • 15-W/ch into 8 Loads at 10% THD+N From a 16V Supply
  • 10-W/ch into 8 Loads at 10% THD+N From a 13V Supply
  • 90% Efficient Class-D Operation Eliminates Need for Heat Sinks
  • Wide Supply Voltage Range Allows Operation from 8V to 26V
  • Filter-Free Operation
  • SpeakerGuard™ Speaker Protection Includes Adjustable Power Limiter
  • Excellent THD+N / Pop-Free Performance
  • Four Selectable, Fixed Gain Settings
  • Differential Inputs
  • Selectable Switching Frequency (290kHz or 390kHz) Allows
    Multiple Devices to be Used in One System
  • Integrated 5V Regulator With up to 30 mA of Output Current
    for Powering External Data Converters
  • 5mm × 5mm QFN Packaging
  • APPLICATIONS
    • Televisions
    • Consumer Audio Equipment
    • All-in-One Computers

SpeakerGuard is a trademark of Texas Instruments.

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Description

The TPA3117D2 is a 15W (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. 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 TPA3117D2 can drive stereo speakers as low as 4. The high efficiency of the TPA3117D2, 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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Download

Next Generation 15-W, Stereo, Analog Input Class-D Audio Amplifier:  TPA3110D2

Next Generation 30-W, Stereo Class-D Amplifier with Low-Idle Power Dissipation (Analog-In) for Battery Operated Systems Available:  TPA3128D2

Technical documentation

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Type Title Date
* Datasheet 15W Filter-Free Stereo Class-D Amplifier datasheet Oct. 14, 2010
Application notes Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) Aug. 26, 2019
Application notes AN-1849 An Audio Amplifier Power Supply Design (Rev. C) Jun. 27, 2019
Application notes AN-1737 Managing EMI in Class D Audio Applications (Rev. A) May 01, 2013
User guides TPA3117D2EVM Audio Amplifier Evaluation Module Nov. 01, 2010

Design & development

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Package Pins Download
VQFN (RHB) 32 View options

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