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TPA3106D1

ACTIVE

40-W mono, 10- to 26-V supply, analog input Class-D audio amplifier

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Data sheet

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TPA3118D2 ACTIVE 30-W stereo, 60-W mono, 4.5- to 26-V supply, analog input Class-D audio amplifier 1.2MHz switching frequency, avoids AM frequencies in order to synchronize multiple devices

TPA3106D1

ACTIVE
Data sheet Order now

Product details

Audio input type Analog Input Architecture Class-D Speaker channels (max) Mono Rating Catalog Power stage supply (max) (V) 26 Power stage supply (min) (V) 10 Load (min) (Ω) 4 Output power (W) 40 SNR (dB) 102 THD + N at 1 kHz (%) 0.2 Iq (typ) (mA) 14 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) Mono Rating Catalog Power stage supply (max) (V) 26 Power stage supply (min) (V) 10 Load (min) (Ω) 4 Output power (W) 40 SNR (dB) 102 THD + N at 1 kHz (%) 0.2 Iq (typ) (mA) 14 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
HLQFP (VFP) 32 81 mm² 9 x 9
  • 40-W Into an 8- Load From a 25-V Supply
  • Operates From 10 V to 26 V
  • Efficient Class-D Operation Eliminates the 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 7×7, 32-pin HLQFP Package
  • APPLICATIONS
    • Televisions
    • Powered Speakers
  • 40-W Into an 8- Load From a 25-V Supply
  • Operates From 10 V to 26 V
  • Efficient Class-D Operation Eliminates the 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 7×7, 32-pin HLQFP Package
  • APPLICATIONS
    • Televisions
    • Powered Speakers

The TPA3106D1 is a 40-W efficient, Class-D audio power amplifier for driving bridged-tied stereo speakers. The TPA3106D1 can drive stereo speakers as low as 4. The high efficiency, ~92%, of the TPA3106D1 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 TPA3106D1 is a 40-W efficient, Class-D audio power amplifier for driving bridged-tied stereo speakers. The TPA3106D1 can drive stereo speakers as low as 4. The high efficiency, ~92%, of the TPA3106D1 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.
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Next Generation 50-W, Stereo, Analog Input Class-D Audio Amplifier:  TPA3116D2

Technical documentation

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Type Title Date
* Data sheet 40-W Mono Class-D Audio Power Amplifier 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
User guide TPA3106D1 Audio Power Amplifier EVM With LC Filter (Rev. D) 11 May 2011
Application note Interfacing External Devices to the TPA310xDx Amplifiers 29 Sep 2008

Design & development

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Evaluation board

TPA3106D1EVM — TPA3106D1 Evaluation Module (EVM)

The TPA3106D1 evaluation module consists of a single 40 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 speakers with an external analog audio source as the input.

User guide: PDF
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Simulation model

TPA3106D1 TINA-TI Reference Design

SLOM194.TSC (217 KB) - TINA-TI Reference Design
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Simulation model

TPA3106D1 TINA-TI Transient Model

SLOM193.ZIP (17 KB) - TINA-TI Spice Model
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Simulation model

TPA3106D1 Unencrypted PSpice Transient Model Package (Rev. A)

SLOM192A.ZIP (22 KB) - PSpice Model
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Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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 (...)
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