SLLSER4 November   2015 ISO7320-Q1 , ISO7321-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
    8. 6.8  Supply Current Characteristics—3.3-V Supply
    9. 6.9  Power Dissipation Characteristics
    10. 6.10 Switching Characteristics—5-V Supply
    11. 6.11 Switching Characteristics—3.3-V Supply
    12. 6.12 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 High Voltage Feature Description
        1. 8.3.1.1 Insulation and Safety-Related Specifications for D-8 Package
        2. 8.3.1.2 Insulation Characteristics
        3. 8.3.1.3 Regulatory Information
        4. 8.3.1.4 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
        1. 9.2.1.1 Typical Supply Current Equations
          1. 9.2.1.1.1 ISO7320-Q1
          2. 9.2.1.1.2 ISO7321-Q1
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Electromagnetic Compatibility (EMC) Considerations
      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 Related Links
    3. 12.3 Community Resource
    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)
  • D|8
Thermal pad, mechanical data (Package|Pins)
Orderable Information

1 Features

  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range
    • Device HBM Classification Level 3A
    • Device CDM Classification Level C6
  • Signaling Rate: 25 Mbps
  • Integrated Noise Filter on the Inputs
  • Default Output High and Low Options
  • Low Power Consumption: Typical ICC per Channel at 1 Mbps:
    • ISO7320-Q1: 1.2 mA (5-V Supplies),
      0.9 mA (3.3-V Supplies)
    • ISO7321-Q1: 1.7 mA (5-V Supplies),
      1.2 mA (3.3-V Supplies)
  • Low Propagation Delay: 33 ns
    Typical (5-V Supplies)
  • 3.3-V and 5-V Level Translation
  • 65-kV/μs Transient Immunity,
    Typical (5-V Supplies)
  • Robust Electromagnetic Compatibility (EMC)
    • System-level ESD, EFT, and Surge Immunity
    • Low Emissions
  • Isolation Barrier Life: > 25 Years
  • Operates from 3.3-V and 5-V Supplies
  • Narrow Body SOIC-8 Package
  • Safety and Regulatory Approvals:
    • 4242-VPK Isolation per DIN V VDE V 0884-10 and DIN EN 61010-1
    • 3000-VRMS Isolation for 1 minute per UL 1577
    • CSA Component Acceptance Notice 5A, IEC 60950-1 and IEC 61010-1 Standards
    • Planned CQC Certification per GB4943.1-2011

2 Applications

  • Opto-Coupler Replacement in:
    • Industrial FieldBus
      • ProfiBus
      • ModBus
      • DeviceNet™ Data Buses
    • Servo Control Interface
    • Motor Control
    • Power Supplies
    • Battery Packs

3 Description

The ISO732x-Q1 family of devices provides galvanic isolation up to 3000 VRMS for 1 minute per UL 1577 and 4242 VPK per VDE V 0884-10. These devices have two isolated channels comprised of logic input and output buffers separated by silicon dioxide (SiO2) insulation barriers.

The ISO7320-Q1 has both channels in the same direction while ISO7321-Q1 has the two channels in opposite direction. In case of input power or signal loss, the default output is low for orderable part numbers with suffix F and high for orderable part numbers without suffix F. See Device Functional Modes for more information. Used in conjunction with isolated power supplies, these devices prevent noise currents on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry. The ISO732x-Q1 family of devices has integrated noise filters for harsh industrial environment where short noise pulses may be present at the device input pins. The ISO732x-Q1 family of devices has TTL input thresholds and operate from 3-V to 5.5-V supply levels.

Through innovative chip design and layout techniques, electromagnetic compatibility of the ISO732x-Q1 family of devices has been significantly enhanced to enable system-level ESD, EFT, Surge and Emissions compliance.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
ISO7320-Q1 SOIC (8) 4.90 mm × 3.91 mm
ISO7321-Q1
  1. For all available packages, see the orderable addendum at the end of the datasheet.

Simplified Schematic

ISO7320-Q1 ISO7321-Q1 Simplified_Schematic_sllsek8.gif
VCCI and GNDI are supply and ground connections respectively for the input channels.
VCCO and GNDO are supply and ground connections respectively for the output channels.

4 Revision History

DATE REVISION NOTES
November 2015 * Initial release.