Product details

Audio input type Analog Input Architecture Class-D Speaker channels (Max) Stereo Power stage supply (Max) (V) 26 Power stage supply (Min) (V) 10 Load (Min) (ohms) 4 Output power (W) 15 SNR (dB) 92 THD + N @ 1 kHz (%) 0.04 Iq (Typ) (mA) 16 Control interface Hardware Closed/open loop Closed Analog supply (Min) (V) 10 Analog supply (Max) (V) 26 PSRR (dB) 60 Operating temperature range (C) -40 to 85
Audio input type Analog Input Architecture Class-D Speaker channels (Max) Stereo Power stage supply (Max) (V) 26 Power stage supply (Min) (V) 10 Load (Min) (ohms) 4 Output power (W) 15 SNR (dB) 92 THD + N @ 1 kHz (%) 0.04 Iq (Typ) (mA) 16 Control interface Hardware Closed/open loop Closed Analog supply (Min) (V) 10 Analog supply (Max) (V) 26 PSRR (dB) 60 Operating temperature range (C) -40 to 85
HTSSOP (PWP) 24 34 mm² 4.4 x 7.8
  • 10-W/Ch Into an 8- Load From a 24-V Supply
  • 15-W/Ch into a 4- Load from a 22-V Supply
  • 30-W/Ch into a 8- Load from a 22-V Supply
  • Operates From 10 V to 26 V
  • Can Run From +24 V LCD Backlight Supply
  • Efficient Class-D Operation Eliminates Need for Heat Sinks
  • Four Selectable, Fixed-Gain Settings
  • Internal Oscillator (No External Components Required)
  • Single-Ended Analog Inputs
  • Thermal and Short-Circuit Protection With Auto Recovery
  • Space-Saving Surface Mount 24-Pin TSSOP Package
  • Advanced Power-Off Pop Reduction
  • APPLICATIONS
    • Flat Panel Televisions
    • DLP TVs
    • CRT TVs
    • Powered Speakers

DLP Is a trademark of Texas Instruments.
System Two, Audio Precision are trademarks of Audio Precision, Inc.
All other trademarks are the property of their respective owners.

  • 10-W/Ch Into an 8- Load From a 24-V Supply
  • 15-W/Ch into a 4- Load from a 22-V Supply
  • 30-W/Ch into a 8- Load from a 22-V Supply
  • Operates From 10 V to 26 V
  • Can Run From +24 V LCD Backlight Supply
  • Efficient Class-D Operation Eliminates Need for Heat Sinks
  • Four Selectable, Fixed-Gain Settings
  • Internal Oscillator (No External Components Required)
  • Single-Ended Analog Inputs
  • Thermal and Short-Circuit Protection With Auto Recovery
  • Space-Saving Surface Mount 24-Pin TSSOP Package
  • Advanced Power-Off Pop Reduction
  • APPLICATIONS
    • Flat Panel Televisions
    • DLP TVs
    • CRT TVs
    • Powered Speakers

DLP Is a trademark of Texas Instruments.
System Two, Audio Precision are trademarks of Audio Precision, Inc.
All other trademarks are the property of their respective owners.

The TPA3124D2 is a 15-W (per channel), efficient, class-D audio power amplifier for driving stereo speakers in a single-ended configuration or a mono speaker in a bridge-tied-load configuration. The TPA3124D2 can drive stereo speakers as low as 4 . The efficiency of the TPA3124D2 eliminates the need for an external heat sink when playing music.

The gain of the amplifier is controlled by two gain select pins. The gain selections are 20, 26, 32, and 36 dB.

The patented start-up and shutdown sequences minimize pop noise in the speakers without additional circuitry.

The TPA3124D2 is a 15-W (per channel), efficient, class-D audio power amplifier for driving stereo speakers in a single-ended configuration or a mono speaker in a bridge-tied-load configuration. The TPA3124D2 can drive stereo speakers as low as 4 . The efficiency of the TPA3124D2 eliminates the need for an external heat sink when playing music.

The gain of the amplifier is controlled by two gain select pins. The gain selections are 20, 26, 32, and 36 dB.

The patented start-up and shutdown sequences minimize pop noise in the speakers without additional circuitry.

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
* Data sheet 15-W Stereo Class-D Audio Power Amplifier datasheet 23 May 2008
Application note Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) 26 Aug 2019
Application note AN-1849 An Audio Amplifier Power Supply Design (Rev. C) 27 Jun 2019
Application note AN-1737 Managing EMI in Class D Audio Applications (Rev. A) 01 May 2013
User guide TPA3124D2EVM - User Guide (Rev. A) 04 Nov 2008

Design & development

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Evaluation board

TPA3124D2EVM — TPA3124D2 Evaluation Module (EVM)

The TPA3124D2 evaluation module (EVM) consists of a single 15-W, class-D, stereo audio power amplifier complete with a small number of external components mounted on a printed-circuit board  that can be used to directly drive speakers with an external analog audio source as the input.

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HTSSOP (PWP) 24 View options

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