SLAS845A May   2012  – March 2015 TAS5622A

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 Electrical Characteristics
    6. 6.6 Audio Specification Stereo (BTL)
    7. 6.7 Audio Specification 4 Channels (SE)
    8. 6.8 Audio Specification Mono (PBTL)
    9. 6.9 Typical Characteristics
      1. 6.9.1 Typical Characteristics, BTL Configuration
      2. 6.9.2 Typical Characteristics, SE Configuration
      3. 6.9.3 Typical Characteristics, PBTL Configuration
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagrams
    3. 7.3 Feature Description
      1. 7.3.1  System Power-Up and Power-Down Sequence
        1. 7.3.1.1 Powering Up
        2. 7.3.1.2 Powering Down
      2. 7.3.2  Start-up and Shutdown Ramp Sequence
      3. 7.3.3  Unused Output Channels
      4. 7.3.4  Device Protection System
      5. 7.3.5  Pin-to-Pin Short Circuit Protection (PPSC)
      6. 7.3.6  Overtemperature Protection
      7. 7.3.7  Overtemperature Warning, OTW
      8. 7.3.8  Undervoltage Protection (UVP) and Power-On Reset (POR)
      9. 7.3.9  Error Reporting
      10. 7.3.10 Fault Handling
      11. 7.3.11 Device Reset
    4. 7.4 Device Functional Modes
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Typical BTL Application
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curves
      2. 8.2.2 Typical SE Configuration
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
        3. 8.2.2.3 Application Curves
      3. 8.2.3 Typical PBTL Configuration
        1. 8.2.3.1 Design Requirements
        2. 8.2.3.2 Detailed Design Procedure
        3. 8.2.3.3 Application Curves
  9. 9 Power Supply Recommendations
    1. 9.1 Boot Strap Supply
  10. 10Layout
    1. 10.1 Layout Guidelines
      1. 10.1.1 PCB Material Recommendation
      2. 10.1.2 PVDD Capacitor Recommendation
      3. 10.1.3 Decoupling Capacitor Recommendation
      4. 10.1.4 Circuit Component Requirements
      5. 10.1.5 Printed Circuit Board Requirements
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Trademarks
    2. 11.2 Electrostatic Discharge Caution
    3. 11.3 Glossary
  12. 12Mechanical, 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 40mΩ Output MOSFET With > 90% Efficiency at Full Output Power
  • Output Power at 10%THD+N
    • 125-W and 4-Ω BTL Stereo Configuration
    • 250-W and 2-Ω PBTL Mono Configuration
  • Output Power at 1%THD+N
    • 105-W and 4-Ω BTL Stereo Configuration
    • 210-W and 2-Ω PBTL Mono Configuration
  • Click 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 TAS5622A device is a thermally enhanced version of the class-D power amplifier based on the TAS5612A 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 TAS5622A leads to industry-leading levels of efficiency ensuring a super “green” system.

The TAS5622A 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 TAS5622A makes the amplifier easy to use; and, using TI’s reference schematics and PCB layouts leads to fast design in time. The TAS5622A is available in the space-saving, surface-mount, 44-pin HTSSOP package.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
TAS5622A 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 TAS5622A Application Block Diagram

TAS5622A fp_app_las845.gif