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TPA3138D2 ACTIVE 10-W stereo, 18.5-W mono, 3.5- to 14.4-V, analog input Class-D audio amplifier w/ inductor free High efficiency, low-idle current, enhanced EMI suppression with spread spectrum control

Product details

Audio input type Analog Input Architecture Class-D Speaker channels (max) Stereo Rating Catalog Power stage supply (max) (V) 26 Power stage supply (min) (V) 10 Load (min) (Ω) 4 THD + N at 1 kHz (%) 0.09 Iq (typ) (mA) 22 Control interface Hardware Closed/open loop Closed Analog supply (min) (V) 10 Analog supply voltage (max) (V) 26 PSRR (dB) 70 Operating temperature range (°C) -40 to 85
Audio input type Analog Input Architecture Class-D Speaker channels (max) Stereo Rating Catalog Power stage supply (max) (V) 26 Power stage supply (min) (V) 10 Load (min) (Ω) 4 THD + N at 1 kHz (%) 0.09 Iq (typ) (mA) 22 Control interface Hardware Closed/open loop Closed Analog supply (min) (V) 10 Analog supply voltage (max) (V) 26 PSRR (dB) 70 Operating temperature range (°C) -40 to 85
HTQFP (PHP) 48 81 mm² 9 x 9 VQFN (RGZ) 48 49 mm² 7 x 7
  • 10-W/ch into an 8- Load From a 13-V Supply
  • 9.2-W/ch into an 8- Load From a 12-V Supply
  • Operates from 10 V to 26 V
  • 87% Efficient Class-D Operation Eliminates Need for Heat Sinks
  • Four Selectable, Fixed Gain Settings
  • Differential Inputs
  • Thermal and Short-Circuit Protection With Auto Recovery Feature
  • Clock Output for Synchronization With Multiple Class-D Devices
  • Surface Mount 7 mm × 7 mm, 48-pin QFN Package
  • Surface Mount 7 mm × 7 mm, 48-pin HTQFP Package
  • APPLICATIONS
    • Televisions

  • 10-W/ch into an 8- Load From a 13-V Supply
  • 9.2-W/ch into an 8- Load From a 12-V Supply
  • Operates from 10 V to 26 V
  • 87% Efficient Class-D Operation Eliminates Need for Heat Sinks
  • Four Selectable, Fixed Gain Settings
  • Differential Inputs
  • Thermal and Short-Circuit Protection With Auto Recovery Feature
  • Clock Output for Synchronization With Multiple Class-D Devices
  • Surface Mount 7 mm × 7 mm, 48-pin QFN Package
  • Surface Mount 7 mm × 7 mm, 48-pin HTQFP Package
  • APPLICATIONS
    • Televisions

The TPA3101D2 is a 10-W (per channel) efficient, Class-D audio power amplifier for driving bridged-tied stereo speakers. The TPA3101D2 can drive stereo speakers as low as 4 . The high efficiency of the TPA3101D2, 87%, 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, 36 dB.

The outputs are fully protected against shorts to GND, VCC, and output-to-output shorts with an auto recovery feature and monitor output.

The TPA3101D2 is a 10-W (per channel) efficient, Class-D audio power amplifier for driving bridged-tied stereo speakers. The TPA3101D2 can drive stereo speakers as low as 4 . The high efficiency of the TPA3101D2, 87%, 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, 36 dB.

The outputs are fully protected against shorts to GND, VCC, and output-to-output shorts with an auto recovery feature and monitor output.

Download View video with transcript Video

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

Next Generation Low-EMI 10-W, Stereo, Analog Input Class-D Audio Amplifier:  TPA3136D2

Technical documentation

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Type Title Date
* Data sheet 10W Stereo Class-D Audio Power Amp datasheet (Rev. C) 19 Aug 2010
Application note Using Thermal Calculation Tools for Analog Components (Rev. A) 30 Aug 2019
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
Application note Interfacing External Devices to the TPA310xDx Amplifiers 29 Sep 2008
User guide TPA3101D2EVM - User Guide (Rev. A) 09 Jul 2007
Application note TPA3100D2 Mono Amplifier Configuration (Rev. A) 16 Apr 2007
User guide TPA3101D2EVM - User Guide 14 Dec 2005

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HTQFP (PHP) 48 Ultra Librarian
VQFN (RGZ) 48 Ultra Librarian

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