ZHCS491B August   2011  – December 2014 TPA2025D1

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用范围
  3. 3 说明
  4. 4 简化应用示意图
  5. 5 修订历史记录
  6. 6 Device Comparison Table
  7. 7 Pin Configuration and Functions
  8. 8 Specifications
    1. 8.1 Absolute Maximum Ratings
    2. 8.2 ESD Ratings
    3. 8.3 Recommended Operating Conditions
    4. 8.4 Thermal Information
    5. 8.5 Electrical Characteristics
    6. 8.6 Operating Characteristics
    7. 8.7 Typical Characteristics
  9. 9 Parameter Measurement Information
  10. 10Detailed Description
    1. 10.1 Overview
    2. 10.2 Functional Block Diagram
    3. 10.3 Feature Description
      1. 10.3.1 Battery Tracking Automatic Gain Control (AGC)
      2. 10.3.2 Boost Converter Auto Pass Through (APT)
      3. 10.3.3 Short Circuit Auto-Recovery
      4. 10.3.4 Thermal Protection
      5. 10.3.5 Operation with DACS and Codecs
    4. 10.4 Device Functional Modes
      1. 10.4.1 Operation Below AGC Threshold
      2. 10.4.2 Shutdown Mode
  11. 11Application and Implementation
    1. 11.1 Application Information
    2. 11.2 Typical Application
      1. 11.2.1 Design Requirements
      2. 11.2.2 Detailed Design Procedure
        1. 11.2.2.1 Boost Converter Component Section
          1. 11.2.2.1.1 Inductor Equations
          2. 11.2.2.1.2 Boost Converter Capacitor Selection
          3. 11.2.2.1.3 Boost Terms
        2. 11.2.2.2 Input Capacitors
        3. 11.2.2.3 Speaker Load Limitation
      3. 11.2.3 Application Curve
  12. 12Power Supply Recommendations
    1. 12.1 Power Supply Decoupling Capacitors
  13. 13Layout
    1. 13.1 Layout Guidelines
    2. 13.2 Layout Example
  14. 14器件和文档支持
    1. 14.1 商标
    2. 14.2 静电放电警告
    3. 14.3 术语表
  15. 15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

7 Pin Configuration and Functions

12-PIN
TPA2025D1 po_los717.gif

Pin Functions

PIN INPUT/ OUTPUT/ POWER (I/O/P) DESCRIPTION
NAME WCSP
PVDD A1 O Boost converter output and Class-D power stage supply voltage.
SW A2 I Boost converter switch input; connect boost inductor between VBAT and SW.
BGND A3 P Boost converter power ground.
OUT+ B1 O Positive audio output.
AGC B2 I AGC inflection point select. Connect to VDD, GND or Float. Voltage at AGC pin is only read at device power-up. A power cycle is required to change inflection points.
VBAT B3 P Supply voltage.
OUT– C1 O Negative audio output.
EN C2 I Device enable; set to logic high to enable.
IN+ C3 I Positive audio input.
PGND D1 P Class-D power ground.
AGND D2 P Analog ground.
IN– D3 I Negative audio input.