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) 4.5 Load (Min) (ohms) 4 Output power (W) 50 SNR (dB) 102 THD + N @ 1 kHz (%) 0.1 Iq (Typ) (mA) 20 Control interface Hardware Closed/open loop Closed Analog supply (Min) (V) 4.5 Analog supply (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 Power stage supply (Max) (V) 26 Power stage supply (Min) (V) 4.5 Load (Min) (ohms) 4 Output power (W) 50 SNR (dB) 102 THD + N @ 1 kHz (%) 0.1 Iq (Typ) (mA) 20 Control interface Hardware Closed/open loop Closed Analog supply (Min) (V) 4.5 Analog supply (Max) (V) 26 PSRR (dB) 70 Operating temperature range (C) -40 to 85
HTSSOP (DAD) 32 89 mm² 11 x 8.1
  • Supports Multiple Output Configurations
    • 2 × 50 W Into a 4-Ω BTL Load at 21 V (TPA3116D2)
    • 2 × 30 W Into a 8-Ω BTL Load at 24 V (TPA3118D2)
    • 2 × 15 W Into a 8-Ω BTL Load at 15 V (TPA3130D2)
  • Wide Voltage Range: 4.5 V to 26 V
  • Efficient Class-D Operation
    • >90% Power Efficiency Combined With Low Idle Loss Greatly Reduces Heat Sink Size
    • Advanced Modulation Schemes
  • Multiple Switching Frequencies
    • AM Avoidance
    • Master and Slave Synchronization
    • Up to 1.2-MHz Switching Frequency
  • Feedback Power-Stage Architecture With High PSRR Reduces PSU Requirements
  • Programmable Power Limit
  • Differential and Single-Ended Inputs
  • Stereo and Mono Mode With Single-Filter Mono Configuration
  • Single Power Supply Reduces Component Count
  • Integrated Self-Protection Circuits Including Overvoltage, Undervoltage, Overtemperature, DC-Detect, and Short Circuit With Error Reporting
  • Thermally Enhanced Packages
    • DAD (32-Pin HTSSOP Pad Up)
    • DAP (32-Pin HTSSOP Pad Down)
  • –40°C to 85°C Ambient Temperature Range
  • Supports Multiple Output Configurations
    • 2 × 50 W Into a 4-Ω BTL Load at 21 V (TPA3116D2)
    • 2 × 30 W Into a 8-Ω BTL Load at 24 V (TPA3118D2)
    • 2 × 15 W Into a 8-Ω BTL Load at 15 V (TPA3130D2)
  • Wide Voltage Range: 4.5 V to 26 V
  • Efficient Class-D Operation
    • >90% Power Efficiency Combined With Low Idle Loss Greatly Reduces Heat Sink Size
    • Advanced Modulation Schemes
  • Multiple Switching Frequencies
    • AM Avoidance
    • Master and Slave Synchronization
    • Up to 1.2-MHz Switching Frequency
  • Feedback Power-Stage Architecture With High PSRR Reduces PSU Requirements
  • Programmable Power Limit
  • Differential and Single-Ended Inputs
  • Stereo and Mono Mode With Single-Filter Mono Configuration
  • Single Power Supply Reduces Component Count
  • Integrated Self-Protection Circuits Including Overvoltage, Undervoltage, Overtemperature, DC-Detect, and Short Circuit With Error Reporting
  • Thermally Enhanced Packages
    • DAD (32-Pin HTSSOP Pad Up)
    • DAP (32-Pin HTSSOP Pad Down)
  • –40°C to 85°C Ambient Temperature Range

The TPA31xxD2 series are stereo efficient, digital amplifier power stage for driving speakers up to 100 W / 2 Ω in mono. The high efficiency of the TPA3130D2 allows it to do 2 × 15 W without external heat sink on a single layer PCB. The TPA3118D2 can even run 2 × 30 W / 8 Ω without heat sink on a dual layer PCB. If even higher power is needed the TPA3116D2 does 2 × 50 W / 4 Ω with a small heat-sink attached to its top side PowerPAD. All three devices share the same footprint enabling a single PCB to be used across different power levels.

The TPA31xxD2 advanced oscillator/PLL circuit employs a multiple switching frequency option to avoid AM interferences; this is achieved together with an option of either master or slave option, making it possible to synchronize multiple devices.

The TPA31xxD2 devices are fully protected against faults with short-circuit protection and thermal protection as well as overvoltage, undervoltage, and DC protection. Faults are reported back to the processor to prevent devices from being damaged during overload conditions.

The TPA31xxD2 series are stereo efficient, digital amplifier power stage for driving speakers up to 100 W / 2 Ω in mono. The high efficiency of the TPA3130D2 allows it to do 2 × 15 W without external heat sink on a single layer PCB. The TPA3118D2 can even run 2 × 30 W / 8 Ω without heat sink on a dual layer PCB. If even higher power is needed the TPA3116D2 does 2 × 50 W / 4 Ω with a small heat-sink attached to its top side PowerPAD. All three devices share the same footprint enabling a single PCB to be used across different power levels.

The TPA31xxD2 advanced oscillator/PLL circuit employs a multiple switching frequency option to avoid AM interferences; this is achieved together with an option of either master or slave option, making it possible to synchronize multiple devices.

The TPA31xxD2 devices are fully protected against faults with short-circuit protection and thermal protection as well as overvoltage, undervoltage, and DC protection. Faults are reported back to the processor to prevent devices from being damaged during overload conditions.

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Technical documentation

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Type Title Date
* Data sheet TPA3116D2 15-W, 30-W, 50-W Filter-Free Class-D Stereo Amplifier Family With AM Avoidance datasheet (Rev. G) 07 Dec 2017
Application note How to Switch From an Analog Input Device to a Digital Input Device 26 Oct 2021
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
Technical article What are the building blocks of Bluetooth speakers? 21 Feb 2017
User guide TPA3116D2 EVM User's Guide (Rev. B) 20 Dec 2013
Application note AN-1737 Managing EMI in Class D Audio Applications (Rev. A) 01 May 2013

Design & development

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

Evaluation board

TPA3116D2EVM — 50-W Stereo Analog Input Class-D Audio Amplifier Evaluation Module

The TPA3116D2 evaluation module showcases TI’s 50-W Stereo Analog Input Class-D Audio Amplifier 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 evaluation module can also (...)

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Simulation model

TPA3116D2 Unencrypted PSpice Model Package (Rev. A)

SLOM299A.ZIP (21 KB) - PSpice Model
Simulation model

TPA3116D2 TINA-TI Spice Model

SLOM300.ZIP (39 KB) - TINA-TI Spice Model
Simulation model

TPA3116D2 TINA-TI Reference Design

SLOM301.TSC (85 KB) - TINA-TI Reference Design
Simulation model

TPA3116D2 Unencrypted PSpice Average Model Package (Rev. A)

SLOM309A.ZIP (19 KB) - PSpice Model
Simulation model

TPA3116D2 TINA-TI Average Spice Model

SLOM310.ZIP (34 KB) - TINA-TI Spice Model
Simulation model

TPA3116D2 TINA-TI Average Reference Design

SLOM311.TSC (101 KB) - TINA-TI Reference Design
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 (...)
Reference designs

PMP9491 — Audio Boom Box/Portable Speaker Reference Design with Efficient Boost Converter.

PMP9491 is a 30W highly efficient and compact Portable Speaker/Audio Boom Box reference Design which can be used in 15W +15W Stereo or 30W Woofer Applications. The Power Source for the Design is 1 or 2 Li ion in Series . The design is broadly divided into three main stages:
  1. Highly efficient (...)
Reference designs

PMP9484 — Highly Efficient and Compact 100-W Automotive Amplifier Reference Design with Boost Converter

PMP9484 is a 100W highly efficient and compact automotive amplifier reference design which can be used in 50W +50W stereo or 100W woofer applications.  The design is broadly divided into three main stages:
1.) Highly efficient single-phase synchronous boost converter using the LM5122 controller (...)
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HTSSOP (DAD) 32 View options

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