SCDS336C November   2012  – October 2016 TS5A3159-Q1

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 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. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 Receiving Notification of Documentation Updates
    3. 12.3 Community Resources
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • DBV|6
Thermal pad, mechanical data (Package|Pins)
Orderable Information

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