SLASEC6A April 2016  – November 2016 TPA3244


  1. Features
  2. Applications
  3. Description
  4. Revision History
  5. Device Comparison Table
  6. Pin Configuration and Functions
  7. Specifications
    1. 7.1Absolute Maximum Ratings
    2. 7.2ESD Ratings
    3. 7.3Recommended Operating Conditions
    4. 7.4Thermal Information
    5. 7.5Electrical Characteristics
    6. 7.6Audio Characteristics (BTL)
    7. 7.7Audio Characteristics (SE)
    8. 7.8Audio Characteristics (PBTL)
    9. 7.9Typical Characteristics
      1. 7.9.1BTL Configuration
      2. 7.9.2SE Configuration
      3. 7.9.3PBTL Configuration
  8. Parameter Measurement Information
  9. Detailed Description
    1. 9.1Overview
    2. 9.2Functional Block Diagrams
    3. 9.3Feature Description
      1. 9.3.1Error Reporting
    4. 9.4Device Functional Modes
      1. 9.4.1Device Protection System
        1. and Short Circuit Current Protection
        2. Clipping and Pulse Injector
        3. Speaker Protection
        4. Short Circuit Protection (PPSC)
        5. Protection OTW and OTE
        6. Protection (UVP) and Power-on Reset (POR)
        7. Handling
        8. Reset
  10. 10Application and Implementation
    1. 10.1Application Information
    2. 10.2Typical Applications
      1. 10.2.1Stereo BTL Application
        1. Requirements
        2. Design Procedures
          1. Capacitor Recommendations
          2. Capacitor Recommendation
          3. Material Recommendation
        3. Curves
      2. 10.2.2Typical Application, Single Ended (1N) SE
        1. Requirements
        2. Curves
      3. 10.2.3Typical Application, Differential (2N), PBTL (Outputs Paralleled before LC filter)
        1. Requirements
        2. Curves
    3. 10.3Typical Application, Differential (2N), PBTL (Outputs Paralleled after LC filter)
      1. 10.3.1Design Requirements
      2. 10.3.2Application Curves
  11. 11Power Supply Recommendations
    1. 11.1Power Supplies
      1. 11.1.1VDD Supply
      2. 11.1.2GVDD_X Supply
      3. 11.1.3PVDD Supply
    2. 11.2Powering Up
    3. 11.3Powering Down
    4. 11.4Thermal Design
      1. 11.4.1Thermal Performance
      2. 11.4.2Thermal Performance with Continuous Output Power
      3. 11.4.3Thermal Performance with Non-Continuous Output Power
  12. 12Layout
    1. 12.1Layout Guidelines
    2. 12.2Layout Examples
      1. 12.2.1BTL Application Printed Circuit Board Layout Example
      2. 12.2.2SE Application Printed Circuit Board Layout Example
      3. 12.2.3PBTL (Outputs Paralleled before LC filter) Application Printed Circuit Board Layout Example
      4. 12.2.4PBTL (Outputs Paralleled after LC filter) Application Printed Circuit Board Layout Example
  13. 13Device and Documentation Support
    1. 13.1Documentation Support
    2. 13.2Receiving Notification of Documentation Updates
    3. 13.3Community Resources
    4. 13.4Trademarks
    5. 13.5Electrostatic Discharge Caution
    6. 13.6Glossary
  14. 14Mechanical, Packaging, and Orderable Information


  • Differential Analog Inputs
  • Total Output Power at 10%THD+N
    • 60-W Stereo Continuous into 8 Ω in BTL Configuration at 30 V
    • 110-W Stereo Peak into 4 Ω in BTL Configuration at 30 V
  • Total Output Power at 1%THD+N
    • 50-W Stereo Continuous into 8 Ω in BTL Configuration at 30 V
    • 90-W Stereo Peak into 4 Ω in BTL Configuration at 30 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)
    • <55 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
  • 94% Efficient Class-D Operation (8 Ω)
  • Wide 12-V to 30-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


  • High End Soundbar
  • Mini Combo Systems
  • Blu-Ray Disc™ / DVD Receivers
  • Active Speakers


The TPA3244 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 30-V power supply the device can drive up to 2 x 110 W peak into 4-Ω load and 2 x 60 W continuous into 8-Ω load and features a 2-VRMS analog input interface that works seamlessly with high performance DACs such as Burr-Brown PCM52xx DAC Family from TI (that is, PCM5242 / PCM5252). In addition to excellent audio performance, TPA3244 achieves both high power efficiency and very low power stage idle losses below 0.45 W. This is achieved through the use of 65 mΩ MOSFETs and an optimized gate driver scheme that achieves significantly lower idle losses than typical discrete implementations.

Device Information(1)

TPA3244HTSSOP (44)6.10mm x 14.00mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Simplified Schematic

TPA3244 FrontPageDiagram.gif

Total Harmonic Distortion

TPA3244 D000_SLASEC6.gif