SLAS844A May   2012  – January 2016 TAS5624A

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Electrical Characteristics - Audio Specification Stereo (BTL)
    7. 7.7 Electrical Characteristics - Audio Specification 4 Channels (SE)
    8. 7.8 Electrical Characteristics - Audio Specification Mono (PBTL)
    9. 7.9 Typical Characteristics
      1. 7.9.1 BTL Configuration
      2. 7.9.2 SE Configuration
      3. 7.9.3 PBTL Configuration
  8. 8 Parameter Measurement Information
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagrams
    3. 9.3 Feature Description
      1. 9.3.1  System Power-Up and Power-Down Sequence
        1. 9.3.1.1 Powering Up
        2. 9.3.1.2 Powering Down
      2. 9.3.2  Start-Up and Shutdown Ramp Sequence
      3. 9.3.3  Unused Output Channels
      4. 9.3.4  Device Protection System
      5. 9.3.5  Pin-to-Pin Short-Circuit Protection (PPSC)
      6. 9.3.6  Overtemperature Protection
      7. 9.3.7  Overtemperature Warning, OTW
      8. 9.3.8  Undervoltage Protection (UVP) and Power-On Reset (POR)
      9. 9.3.9  Error Reporting
      10. 9.3.10 Fault Handling
      11. 9.3.11 Device Reset
      12. 9.3.12 System Design Consideration
    4. 9.4 Device Functional Modes
  10. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Applications
      1. 10.2.1 Typical BTL Application
        1. 10.2.1.1 Design Requirements
        2. 10.2.1.2 Detailed Design Procedure
          1. 10.2.1.2.1 Pin Connections
        3. 10.2.1.3 Application Curves
      2. 10.2.2 Typical SE Configuration
        1. 10.2.2.1 Design Requirements
        2. 10.2.2.2 Detailed Design Procedure
        3. 10.2.2.3 Application Curves
      3. 10.2.3 Typical PBTL Configuration
        1. 10.2.3.1 Design Requirements
        2. 10.2.3.2 Detailed Design Procedure
        3. 10.2.3.3 Application Curves
  11. 11Power Supply Recommendations
    1. 11.1 Power Supplies
    2. 11.2 Boot Strap Supply
  12. 12Layout
    1. 12.1 Layout Guidelines
      1. 12.1.1 PCB Material Recommendation
      2. 12.1.2 PVDD Capacitor Recommendation
      3. 12.1.3 Decoupling Capacitor Recommendation
      4. 12.1.4 Circuit Component and Printed-Circuit-Board Recommendation
        1. 12.1.4.1 Circuit Component Requirements
        2. 12.1.4.2 Printed-Circuit-Board Requirements
    2. 12.2 Layout Example
  13. 13Device and Documentation Support
    1. 13.1 Documentation Support
      1. 13.1.1 Related Documentation
    2. 13.2 Community Resources
    3. 13.3 Trademarks
    4. 13.4 Electrostatic Discharge Caution
    5. 13.5 Glossary
  14. 14Mechanical, Packaging, and Orderable Information

パッケージ・オプション

メカニカル・データ（パッケージ｜ピン）
サーマルパッド・メカニカル・データ
発注情報

1 Features

  • PurePath™ HD Integrated Feedback Provides:
    • 0.025% THD at 1 W into 4 Ω
    • > 65-dB PSRR (No Input Signal)
    • > 105-dB (A-Weighted) SNR
  • Preclipping Output for Control of a Class-G Power Supply
  • Reduced Heat Sink Size Due to Use of 40-mΩ Output MOSFET With > 90% Efficiency at Full Output Power
  • Output Power at 10% THD+N
    • 150-W and 4-Ω BTL Stereo Configuration
    • 300-W and 2-Ω PBTL Mono Configuration
  • Output Power at 10% THD+N
    • 125-W and 4-Ω BTL Stereo Configuration
    • 250-W and 2-Ω PBTL Mono Configuration
  • Click-Free and Pop-Free Start-Up
  • Error Reporting Self-Protected Design With UVP, Overtemperature, and Short-Circuit Protection
  • EMI-Compliant When Used With Recommended System Design
  • 44-Pin HTSSOP (DDV) Package for Reduced Board Size

2 Applications

  • Blu-ray™ and DVD Receivers
  • High-Power Sound Bars
  • Powered Subwoofer and Active Speakers
  • Mini Combo Systems

3 Description

The TAS5624A device is a thermally-enhanced version of the class-D power amplifier based on the TAS5614A using large MOSFETs for improved power efficiency and a novel gate-drive scheme for reduced losses in idle and at low-output signals leading to reduced heat sink size.

The unique preclipping output signal can be used to control a Class-G power supply. This combined with the low idle loss and high power efficiency of the TAS5624A leads to industry leading levels of efficiency ensuring a super green system.

The TAS5624A uses constant voltage gain. The internally-matched gain resistors ensure a high power supply rejection ratio giving an output voltage only dependent on the audio input voltage and free from any power supply artifacts.

The high integration of the TAS5624A makes the amplifier easy to use; and, using TI’s reference schematics and PCB layouts leads to fast design in time. The TAS5624A is available in the space-saving, surface-mount 44-pin HTSSOP package.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
TAS5624A HTSSOP (44) 14.00 mm × 6.10 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Typical TAS5624A Application Block Diagram

TAS5624A fp_app_las844.gif

4 Revision History

Changes from * Revision (May 2012) to A Revision

  • Added ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable Information section. Go