SLLSER5 December   2015 ISO7142CC-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—5-V Supply
    6. 6.6  Supply Current Characteristics—5-V Supply
    7. 6.7  Electrical Characteristics—3.3-V Supply
    8. 6.8  Supply Current Characteristics—3.3-V Supply
    9. 6.9  Electrical Characteristics—2.7-V Supply
    10. 6.10 Supply Current Characteristics—2.7-V Supply
    11. 6.11 Power Dissipation Characteristics
    12. 6.12 Switching Characteristics—5-V Supply
    13. 6.13 Switching Characteristics—3.3-V Supply
    14. 6.14 Switching Characteristics—2.7-V Supply
    15. 6.15 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
      1. 8.3.1 Insulation and Safety-Related Specifications
      2. 8.3.2 Regulatory Information
      3. 8.3.3 Safety Limiting Values
    4. 8.4 Device Functional Modes
      1. 8.4.1 Device I/O Schematics
  9. 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 Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
      1. 11.1.1 PCB Material
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 Community Resources
    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

9 Application 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

The ISO7142CC-Q1 device uses single-ended TTL-logic switching technology. The supply voltage range is from 2.7 V to 5.5 V for both supplies, VCC1 and VCC2. When designing with digital isolators, keep in mind that because of the single-ended design structure the single-ended design structure, digital isolators do not conform to any specific interface standard and are only intended for isolating single-ended CMOS or TTL digital signal lines. The isolator is typically placed between the data controller (that is, µC or UART), and a data converter or a line transceiver, regardless of the interface type or standard.

9.2 Typical Application

Figure 15 shows the typical isolated CAN interface implementation.

ISO7142CC-Q1 typ_app_sllser5.gif Figure 15. Typical Isolated CAN Application Circuit for ISO7142CC-Q1

9.2.1 Design Requirements

Unlike optocouplers, which require external components to improve performance, provide bias, or limit current, the ISO7142CC-Q1 device only requires two external bypass capacitors to operate.

9.2.2 Detailed Design Procedure

Figure 16 shows the hookup of a typical ISO7142CC-Q1 circuit. The only external components are two bypass capacitors.

ISO7142CC-Q1 detailed_design_sllsef1.gif Figure 16. Typical ISO7142CC-Q1 Circuit Hook-up

9.2.3 Application Curves

ISO7142CC-Q1 eye_diagram_2.7V_sllsef1.gif Figure 17. Typical Eye Diagram at 40 Mbps,
PRBS 216 - 1, 2.7-V Operation
ISO7142CC-Q1 eye_diagram_5V_sllsef1.gif Figure 19. Typical Eye Diagram at 50 Mbps,
PRBS 216 - 1, 5-V Operation
ISO7142CC-Q1 eye_diagram_3.3V_sllsef1.gif Figure 18. Typical Eye Diagram at 40 Mbps,
PRBS 216 - 1, 3.3-V Operation