ZHCSAA4B September   2012  – September 2015 TPA3110D2-Q1

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1. 3.1 TPA3110D2-Q1 简化应用原理图
  4. 4 修订历史记录
  5. 5 Pin Configuration and Functions
    1.     Pin 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 Characteristics
    6. 6.6 DC Characteristics
    7. 6.7 AC Characteristics
    8. 6.8 AC Characteristics
    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 DC Detect
      2. 7.3.2 Short-Circuit Protection and Automatic Recovery Feature
      3. 7.3.3 Thermal Protection
      4. 7.3.4 GVDD Supply
    4. 7.4 Device Functional Modes
      1. 7.4.1 PBTL Select
      2. 7.4.2 Gain Setting Through GAIN0 and GAIN1 Inputs
      3. 7.4.3 SD Operation
      4. 7.4.4 PLIMIT
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 TPA3110D2-Q1 Modulation Scheme
        2. 8.2.2.2 Ferrite Bead Filter Considerations
        3. 8.2.2.3 Efficiency: LC Filter Required With the Traditional Class-D Modulation Scheme
        4. 8.2.2.4 When to Use an Output Filter for EMI Suppression
        5. 8.2.2.5 Input Resistance
        6. 8.2.2.6 Input Capacitor, CI
        7. 8.2.2.7 BSN and BSP Capacitors
        8. 8.2.2.8 Differential Inputs
        9. 8.2.2.9 Using Low-ESR Capacitors
      3. 8.2.3 Application Curve
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11器件和文档支持
    1. 11.1 器件支持
      1. 11.1.1 开发支持
    2. 11.2 文档支持
      1. 11.2.1 相关文档
    3. 11.3 社区资源
    4. 11.4 商标
    5. 11.5 静电放电警告
    6. 11.6 Glossary
  12. 12机械、封装和可订购信息

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

8.1 Application Information

The TPA3110D1-Q1 device is an automotive class-D audio amplifier. It accepts either a stereo single ended or differential analog input, amplifies the signal, and drives up to 15W across two bridge tied loads, usually stereo speakers. Because an analog input is needed, this device is often paired with a codec or audio DAC if the audio source is digital.

The four digital input/output pins, GAIN0, GAIN1, SD, and FAULT, can be pulled up to PVCC. When connecting these terminals to PVCC, a 100 kΩ-resistor must be put in series to limit the slew rate. One of four gain settings is used depending on the configuration of GAIN0 and GAIN1. The SD pin is used to put the device in shutdown or normal mode. The FAULT pin is used to indicate if a DC detect or short circuit fault was detected. The next few sections explains design considerations and how to choose the external components.