Product details

Audio input type Analog Input Architecture Class-D Speaker channels (max) 4 Rating Catalog Power stage supply (max) (V) 36 Power stage supply (min) (V) 12 Load (min) (Ω) 1.5 Output power (W) 130 SNR (dB) 110 THD + N at 1 kHz (%) 0.005 Iq (typ) (mA) 12.5 Control interface Hardware Closed/open loop Closed Analog supply (min) (V) 10.8 Analog supply voltage (max) (V) 13.2 PSRR (dB) 60 Operating temperature range (°C) 0 to 70
Audio input type Analog Input Architecture Class-D Speaker channels (max) 4 Rating Catalog Power stage supply (max) (V) 36 Power stage supply (min) (V) 12 Load (min) (Ω) 1.5 Output power (W) 130 SNR (dB) 110 THD + N at 1 kHz (%) 0.005 Iq (typ) (mA) 12.5 Control interface Hardware Closed/open loop Closed Analog supply (min) (V) 10.8 Analog supply voltage (max) (V) 13.2 PSRR (dB) 60 Operating temperature range (°C) 0 to 70
HTSSOP (DDW) 44 113.4 mm² 14 x 8.1
  • Differential Analog Inputs
  • Total Output Power at 10%THD+N
    • 70-W Stereo Continuous into 8 Ω in BTL
      Configuration at 32 V
    • 130-W Stereo Peak into 4 Ω in BTL
      Configuration at 32 V
  • Total Output Power at 1%THD+N
    • 60-W Stereo Continuous into 8 Ω in BTL
      Configuration at 32 V
    • 105-W Stereo Peak into 4 Ω in BTL
      Configuration at 32 V
  • Advanced Integrated Feedback Design with High-
    speed Gate Driver Error Correction
    (PurePath™ Ultra-HD)
    • Signal Bandwidth up to 100 kHz for High
      Frequency Content From HD Sources
    • Ultra Low 0.005% THD+N at 1 W into 4 Ω
      and <0.01% THD+N to Clipping
    • 60 dB PSRR (BTL, No Input Signal)
    • <60 µV (A-Weighted) Output Noise
    • >110 dB (A Weighted) SNR
  • Multiple Configurations Possible:
    • Stereo, Mono, 2.1 and 4xSE
  • Click and Pop Free Startup and Stop
  • 92% Efficient Class-D Operation (8 Ω)
  • Wide 12-V to 36-V Supply Voltage Operation
  • Self-Protection Design (Including Undervoltage,
    Overtemperature, Clipping, and Short Circuit
    Protection) With Error Reporting
  • EMI Compliant When Used With Recommended
    System Design
  • Differential Analog Inputs
  • Total Output Power at 10%THD+N
    • 70-W Stereo Continuous into 8 Ω in BTL
      Configuration at 32 V
    • 130-W Stereo Peak into 4 Ω in BTL
      Configuration at 32 V
  • Total Output Power at 1%THD+N
    • 60-W Stereo Continuous into 8 Ω in BTL
      Configuration at 32 V
    • 105-W Stereo Peak into 4 Ω in BTL
      Configuration at 32 V
  • Advanced Integrated Feedback Design with High-
    speed Gate Driver Error Correction
    (PurePath™ Ultra-HD)
    • Signal Bandwidth up to 100 kHz for High
      Frequency Content From HD Sources
    • Ultra Low 0.005% THD+N at 1 W into 4 Ω
      and <0.01% THD+N to Clipping
    • 60 dB PSRR (BTL, No Input Signal)
    • <60 µV (A-Weighted) Output Noise
    • >110 dB (A Weighted) SNR
  • Multiple Configurations Possible:
    • Stereo, Mono, 2.1 and 4xSE
  • Click and Pop Free Startup and Stop
  • 92% Efficient Class-D Operation (8 Ω)
  • Wide 12-V to 36-V Supply Voltage Operation
  • Self-Protection Design (Including Undervoltage,
    Overtemperature, Clipping, and Short Circuit
    Protection) With Error Reporting
  • EMI Compliant When Used With Recommended
    System Design

The TPA3250 device is a high performance class-D power amplifier that enables true premium sound quality with class-D efficiency. It features an advanced integrated feedback design and proprietary high-speed gate driver error correction (PurePath™ Ultra-HD). This technology allows ultra low distortion across the audio band and superior audio quality. With a 32V power supply the device can drive up to 2 × 130 W peak into 4-Ω load and 2 × 70 W continuous into 8-Ω load and features a 2 VRMS analog input interface that works seamlessly with high performance DACs such as TI’s PCM5242. In addition to excellent audio performance, TPA3250 achieves both high power efficiency and very low power stage idle losses below 1 W. This is achieved through the use of 60 mΩ MOSFETs and an optimized gate driver scheme that achieves significantly lower idle losses than typical discrete implementations.

The TPA3250 device is a high performance class-D power amplifier that enables true premium sound quality with class-D efficiency. It features an advanced integrated feedback design and proprietary high-speed gate driver error correction (PurePath™ Ultra-HD). This technology allows ultra low distortion across the audio band and superior audio quality. With a 32V power supply the device can drive up to 2 × 130 W peak into 4-Ω load and 2 × 70 W continuous into 8-Ω load and features a 2 VRMS analog input interface that works seamlessly with high performance DACs such as TI’s PCM5242. In addition to excellent audio performance, TPA3250 achieves both high power efficiency and very low power stage idle losses below 1 W. This is achieved through the use of 60 mΩ MOSFETs and an optimized gate driver scheme that achieves significantly lower idle losses than typical discrete implementations.

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TPA3156D2 ACTIVE 70-W stereo, 140-W mono, 4.5- to 26-V, analog input Class-D audio amplifier w/ low idle current For an analog-input, Class-D amplifier with comparable output power and up to 70-W stereo, see the TPA3156D2.

Technical documentation

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Type Title Date
* Data sheet TPA3250 70-W Stereo, 130-W peak PurePath™ Ultra-HD Pad Down Class-D Amplifier datasheet (Rev. A) PDF | HTML 20 Apr 2016
Application note TPA324x and TPA325x Post-Filter Feedback (Rev. A) 07 Mar 2018
More literature High-Power Audio Amplifiers TPA322x/4x/5x 01 Dec 2017
Application note Multi-Device Configuration for TPA32xx Amplifiers 27 Sep 2017
More literature TI Automotive External Amplifiers (Rev. A) 03 Feb 2017
More literature TI Powered Speakers (Rev. A) 31 Jan 2017
Application note Class-D Amplifier External Load Diagnostics 23 Jan 2017
Application note LC Filter Design (Rev. A) 09 Nov 2016
Application note TPA32xx Analog Input Grounding for Single Ended Inputs PDF | HTML 26 Aug 2016
More literature High-Power Audio Amplifiers 14 Jul 2016
EVM User's guide TPA3250D2 Evaluation Module User's Guide 02 Dec 2015

Design & development

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

Evaluation board

SIDEGIG-GUITAREVM — Guitar SideGig Plug-In Module

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Not available on TI.com
Evaluation board

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The TI Prototype Audio Plug-in Module turns TI Audio Class-D amplifier EVM’s into your sandbox. Need to prototype a pre-amplifier circuit or test an opamp with TI Class-D EVMs, then start with the DIY Audio Plug-in Module.

Start your prototype on the included breadboard or solder directly to the (...)
User guide: PDF
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Evaluation board

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The TI Analog, Active Crossover Audio Plug-in Module turns TI Audio Class-D amplifier EVM’s into a high quality, two-way speaker amplifier.  The plug-in module makes it easy to remove the large and expensive passive crossover found in passive loudspeakers and create a biamped, two-way (...)
User guide: PDF
Not available on TI.com
Evaluation board

TPA3250D2EVM — TPA3250 70W Stereo / 130W Peak Ultra-HD Analog-In Audio Class-D Pad-Down Module

The TPA3250D2EVM Ultra-HD evaluation module demonstrates the TPA3250D2DDW integrated circuit from Texas Instruments. The TPA3250D2DDW is a high-performance class-D amplifier that enables true premium sound quality with high efficiency class-D technology. It features an advanced integrated feedback (...)

User guide: PDF
Not available on TI.com
Design tool

SLAC743 TPA3250 Setup Guide & Configuration Tool

Supported products & hardware

Supported products & hardware

Products
Speaker amps
TPA3250 70-W stereo, 140-W mono, 12- to 38-V supply, analog input Class-D audio amplifier, pad-down
Hardware development
Evaluation board
TPA3250D2EVM TPA3250 70W Stereo / 130W Peak Ultra-HD Analog-In Audio Class-D Pad-Down Module
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

PMP10215 — Universal Input to 3.3V, 12V, 36V, 200W Continuous PSU for Class-D Amplifier Reference Design

This power module generates all voltages to supply a class-D audio amplifier. The main output voltage is 36V and delivers 200W continuously and 840W peak. The first stage is a power-factor corrected Boost. A Flyback converter supplies 12V on primary side as well as 12V@300mA and 3.3V@200mA on (...)
Test report: PDF
Schematic: PDF
Package Pins CAD symbols, footprints & 3D models
HTSSOP (DDW) 44 Ultra Librarian

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