ZHCSAJ8C November   2012  – October 2016 TS5A3159-Q1

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用范围
  3. 3 说明
  4. 4 修订历史记录
  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 for 5-V Supply
    6. 6.6 Electrical Characteristics for 3.3-V Supply
    7. 6.7 Electrical Characteristics For 2.5-V Supply
    8. 6.8 Electrical Characteristics For 1.8-V Supply
    9. 6.9 Typical Characteristics
  7. 7 Parameter Measurement Information
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
    4. 8.4 Device Functional Modes
  9. 9 Applications and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curve
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12器件和文档支持
    1. 12.1 文档支持
      1. 12.1.1 相关文档
    2. 12.2 接收文档更新通知
    3. 12.3 社区资源
    4. 12.4 商标
    5. 12.5 静电放电警告
    6. 12.6 Glossary
  13. 13机械、封装和可订购信息

封装选项

请参考 PDF 数据表获取器件具体的封装图。

机械数据 (封装 | 引脚)
  • DBV|6
散热焊盘机械数据 (封装 | 引脚)
订购信息

9 Applications and Implementation

NOTE

Information in the following applications sections is not part of the TI component specification, and TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining suitability of components for their purposes. Customers should validate and test their design implementation to confirm system functionality.

9.1 Application Information

Analog switches are commonly used in battery powered applications to route audio signals. A typical use case is highlighted in Figure 20. The analog switch is supplied with 5 V and the control input is from a 5-V processor GPIO. In this case, there are no concerns related to excess power consumption.

9.2 Typical Application

TS5A3159-Q1 noecxcurrent_cds336.gif Figure 20. Typical Application Schematic

9.2.1 Design Requirements

In this application example, the device receives the control signal from a 5-V GPIO and common input from an Audio Power amplifier. The input is routed to either the Hands free set or the internal speaker depending upon the control signal.

9.2.2 Detailed Design Procedure

Since the control signal varies from 0 to 5 V (Vdd), there’s no excess current consumption. However, if the control signal comes from lower voltage GPIOs while the V+ of TS5A3159 is connected to the battery whose voltage varies, it can lead to an excess current draw from the V+ suppl pin. Such a scenario requires the use of an external voltage level translator such as the SN74LVC1T45. For more information see Preventing Excess Current Consumption on Analog Switches, SCDA011.

9.2.3 Application Curve

The ON state resistance of the switch is a critical parameter to measure since it helps select the right switch for the application. The on state resistance versus the common voltage can be seen in Figure 21.

TS5A3159-Q1 Fig1_ron_vs_VCOM_SCDS336.gif
Figure 21. ron vs VCOM