SCDS285B March   2009  – August 2016 TS5A21366


  1. Features
  2. Applications
  3. Description
  4. Revision History
  5. Pin Configuration and Functions
  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. Parameter Measurement Information
  8. Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 1.8-V Compatible Control Input Threshold Independent of VCC
      2. 8.3.2 Isolation in Power-Down Mode, VCC = 0
    4. 8.4 Device Functional Modes
  9. Application 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 Receiving Notification of Documentation Updates
    2. 12.2 Community Resource
    3. 12.3 Trademarks
    4. 12.4 Electrostatic Discharge Caution
    5. 12.5 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

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

8 Detailed Description

8.1 Overview

The TS5A21366 is a bidirectional, 2-channel, single-pole single-throw (SPST) analog switch that is designed to operate from 1.65-V to 5.5-V supply voltages. This device has 1.8-V compatible input control logic thresholds that are independent of the supply voltage.

8.2 Functional Block Diagram

TS5A21366 functional_block_diagram.gif

8.3 Feature Description

8.3.1 1.8-V Compatible Control Input Threshold Independent of VCC

TS5A21366 integrates special control inputs with low threshold allowing the device to be controlled by 1.8-V signals. The thresholds are fixed and independent of the supply value (VCC). The low threshold (VIH, VIL) of the control inputs (IN1, IN2) is achieved by use of an internal bias circuit. To avoid an increased quiescent current (ICC) condition, proper power sequencing must be followed to ensure that the bias circuitry is powered up prior to applying voltage on the I/Os. The proper sequence is for the VCC pin to be brought up to VCC before the control inputs (IN1, IN2) are allowed to go to a high level.

8.3.2 Isolation in Power-Down Mode, VCC = 0

The TS5A21366 signal paths are high impedance (Hi-Z) when VCC = 0. This feature ensures the signal path is isolated when not in use to avoid interfering with other signals in the system.

8.4 Device Functional Modes

The TS5A21366 device has two functional modes. In one mode, the NO pin is connected to COM pin and a signal passes through the switch. The other mode the NO and COM pins placed in a high impedance state (Hi-Z) and a signal does not pass through the switch.

Table 2. Function Table