SLOS650F August   2009  – June 2016 TPA3113D2

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 DC Electrical Characteristics, VCC = 24 V
    6. 6.6 DC Electrical Characteristics, VCC = 12 V
    7. 6.7 AC Electrical Characteristics, VCC = 24 V
    8. 6.8 AC Electrical Characteristics, VCC = 12 V
    9. 6.9 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Gain Setting Through GAIN0 and GAIN1 Inputs
      2. 7.3.2 SD Operation
      3. 7.3.3 PLIMIT
      4. 7.3.4 GVDD Supply
      5. 7.3.5 DC Detect
      6. 7.3.6 PBTL Select
      7. 7.3.7 Short-Circuit Protection and Automatic Recovery Feature
      8. 7.3.8 Thermal Protection
    4. 7.4 Device Functional Modes
      1. 7.4.1 TPA3113D2 Modulation Scheme
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Stereo Class-D Amplifier With BTL Output
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
          1. 8.2.1.2.1 Ferrite Bead Filter Considerations
          2. 8.2.1.2.2 Efficiency: LC Filter Required With the Traditional Class-D Modulation Scheme
          3. 8.2.1.2.3 When to Use an Output Filter for EMI Suppression
          4. 8.2.1.2.4 Input Resistance
          5. 8.2.1.2.5 Input Capacitor, CI
          6. 8.2.1.2.6 BSN and BSP Capacitors
          7. 8.2.1.2.7 Differential Inputs
          8. 8.2.1.2.8 Using LOW-ESR Capacitors
        3. 8.2.1.3 Application Curves
      2. 8.2.2 Stereo Class-D Amplifier With BTL Output
      3. 8.2.3 Stereo Class-D Amplifier With PBTL Output
  9. 9 Power Supply Recommendations
    1. 9.1 Power Supply Decoupling, CS
  10. 10Layout
    1. 10.1 Layout Guidelines
      1. 10.1.1 PCB Material Recommendation
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 Community Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

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订购信息

1 Features

  • 6-W/ch into an 8-Ω Loads at 10% THD+N From a 10-V Supply
  • 12-W into a 4-Ω Mono Load at 10% THD+N From a 10-V Supply
  • 87% Efficient Class-D Operation Eliminates Need for Heat Sinks
  • Wide Supply Voltage Range Allows Operation from 8 V to 26 V
  • Filter-Free Operation
  • SpeakerGuard™ Speaker Protection Includes Adjustable Power Limiter Plus DC Protection
  • Flow-Through Pinout Facilitates Easy Board Layout
  • Robust Pin-to-Pin Short-Circuit Protection and Thermal Protection With Auto Recovery Option
  • Excellent THD+N and Pop-Free Performance
  • Four Selectable, Fixed Gain Settings
  • Differential Inputs

2 Applications

  • Televisions
  • Consumer Audio Equipment
  • Monitors

3 Description

The TPA3113D2 is a 6-W (per channel) efficient, Class-D audio power amplifier for driving bridged-tied stereo speakers. Advanced EMI Suppression Technology enables the use of inexpensive ferrite bead filters at the outputs while meeting EMC requirements. SpeakerGuard™ speaker protection circuitry includes an adjustable power limiter and a DC detection circuit. The adjustable power limiter allows the user to set a virtual voltage rail lower than the chip supply to limit the amount of current through the speaker. The DC detect circuit measures the frequency and amplitude of the PWM signal and shuts off the output stage if the input capacitors are damaged or shorts exist on the inputs.

The TPA3113D2 can drive stereo speakers as low as 4 Ω. The high efficiency of the TPA3113D2, 87%, eliminates the need for an external heat sink when playing music.

The outputs are also fully protected against shorts to GND, VCC, and output-to-output. The short-circuit protection and thermal protection includes an auto-recovery feature.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
TPA3113D2 TSSOP (28) 9.70 mm × 4.40 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

TPA3113D2 Simplified Application Schematic

TPA3113D2 sim_app_cir_los650.gif