SLLSEJ0G October   2014  – March 2017 ISO7842

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  Power Ratings
    6. 6.6  Insulation Specifications
    7. 6.7  Safety-Related Certifications
    8. 6.8  Safety Limiting Values
    9. 6.9  Electrical Characteristics-5-V Supply
    10. 6.10 Supply Current Characteristics-5-V Supply
    11. 6.11 Electrical Characteristics—3.3-V Supply
    12. 6.12 Supply Current Characteristics—3.3-V Supply
    13. 6.13 Electrical Characteristics—2.5-V Supply
    14. 6.14 Supply Current Characteristics—2.5-V Supply
    15. 6.15 Switching Characteristics—5-V Supply
    16. 6.16 Switching Characteristics—3.3-V Supply
    17. 6.17 Switching Characteristics—2.5-V Supply
    18. 6.18 Insulation Characteristics Curves
    19. 6.19 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 Electromagnetic Compatibility (EMC) Considerations
    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 Curve
  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 Receiving Notification of Documentation Updates
    4. 12.4 Community Resources
    5. 12.5 Trademarks
    6. 12.6 Electrostatic Discharge Caution
    7. 12.7 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • DWW|16
  • DW|16
Thermal pad, mechanical data (Package|Pins)
Orderable Information

1 Features

  • Signaling Rate: Up to 100 Mbps
  • Wide Supply Range: 2.25 V to 5.5 V
  • 2.25-V to 5.5-V Level Translation
  • Wide Temperature Range: –55°C to +125°C
  • Low-Power Consumption, Typical 1.7 mA per Channel at 1 Mbps
  • Low Propagation Delay: 11 ns Typical
    (5-V Supplies)
  • Industry leading CMTI (Min): ±100 kV/μs
  • Robust Electromagnetic Compatibility (EMC)
  • System-Level ESD, EFT, and Surge Immunity
  • Low Emissions
  • Isolation Barrier Life: >40 Years
  • Wide Body SOIC-16 Package and Extra-Wide Body SOIC-16 Package Options
  • Safety and Regulatory Approvals:
    • 8000-VPK Reinforced Isolation per DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
    • 5.7-kVRMS Isolation for 1 Minute per UL 1577
    • CSA Component Acceptance Notice 5A, IEC 60950-1 and IEC 60601-1 End Equipment Standards
    • CQC Certification per GB4943.1-2011
    • TUV Certification per EN 61010-1 and EN 60950-1
    • All DW Package Certifications Complete; DWW Package Certifications Complete per UL, VDE, TUV and Planned for CSA and CQC

2 Applications

  • Industrial Automation
  • Motor Control
  • Power Supplies
  • Solar Inverters
  • Medical Equipment
  • Hybrid Electric Vehicles

3 Description

The ISO7842x device is a high-performance, quad-channel digital isolator with a 8000-VPK isolation voltage. This device has reinforced isolation certifications according to VDE, CSA, CQC, and TUV. The isolator provides high electromagnetic immunity and low emissions at low-power consumption, while isolating CMOS or LVCMOS digital I/Os. Each isolation channel has a logic input and output buffer separated by a silicon-dioxide (SiO2) insulation barrier.

This device comes with enable pins that can be used to put the respective outputs in high impedance for multi-master driving applications and to reduce power consumption. The ISO7842 device has two forward and two reverse-direction channels. If the input power or signal is lost, the default output is high for the ISO7842 device and low for the ISO7842F device. See the Device Functional Modes section for further details.

Used in conjunction with isolated power supplies, this device helps prevent noise currents on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry. Through innovative chip design and layout techniques, electromagnetic compatibility of the ISO7842 device has been significantly enhanced to ease system-level ESD, EFT, surge, and emissions compliance.

The ISO7842 device is available in 16-pin SOIC wide-body (DW) and extra-wide body (DWW) packages.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
ISO7842
ISO7842F		 DW (16) 10.30 mm × 7.50 mm
DWW (16) 10.30 mm × 14.0 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Simplified Schematic

ISO7842 ISO7842F Simplified_Schematic_sllsei6.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

Changes from F Revision (April 2016) to G Revision

  • Changed part numbers in the Power Ratings table (previously Power Dissipation Characteristics) Go
  • Changed the input-to-output test voltage parameter to apparent charge in the Insulation Specifications Go
  • Added the Receiving Notification of Documentation Updates sectionGo

Changes from E Revision (March 2016) to F Revision

  • Changed the number of years for the isolation barrier life in the Features section Go
  • VDE certification is now complete Go
  • Changed VCCO to VCCI for the minimum value of the input threshold voltage hysteresis parameter in all electrical characteristics tablesGo
  • Added VCM to the test condition of the common-mode transient immunity parameter in all electrical characteristics tablesGo
  • Added the lifetime projection graphs for DW and DWW packages to the Safety Limiting Values section Go

Changes from D Revision (December 2015) to E Revision

  • Changed the Safety and Regulatory Approvals list of FeaturesGo
  • Added Features "TUV Certification per EN 61010-1 and EN 60950-1"Go
  • Changed text in the first paragraph of the Description From: "certifications according to VDE, CSA, and CQC". To: "certifications according to VDE, CSA, CQC, and TUV." Go
  • Added Note 1 to Insulation Characteristics Go
  • Changed IEC 60664-1 Ratings TableGo
  • Added TUV to the Regulatory Information section and Regulatory Information. Deleted Note 1 in Regulatory Information Go
  • Changed Device I/O Schematics Go

Changes from C Revision (July 2015) to D Revision

  • Added Features: DW Package Certifications Complete; DWW Certifications PlannedGo
  • Added text to the Description: and extra-wide body (DWW) packages. Go
  • Added package: Extra wide SOIC, DWW (16) to the Device Information tableGo
  • Added the 16-DWW Package to Package Insulation and Safety-Related SpecificationsGo
  • Added the DWW package information to Package Insulation and Safety-Related SpecificationsGo
  • Added the DWW package information to Regulatory InformationGo
  • Changed the MIN value of CMTI in Electrical Characteristics–5-V Supply, 5 V table From: 70 To: 100 kV/μs, deleted the TYP value of 100 kV/μsGo
  • Added the Supply Current - ISO7842DW and ISO7842FDW section to the Supply Current Characteristics–5-V SupplyGo
  • Added the Supply Current - ISO7842DWW and ISO7842FDWW section to the Supply Current Characteristics–5-V SupplyGo
  • Changed the MIN value of CMTI in Electrical Characteristics—3.3-V Supply, 5 V table From: 70 To: 100 kV/μs, deleted the TYP value of 100 kV/μsGo
  • Added the Supply Current - ISO7842DW and ISO7842FDW section to the Supply Current Characteristics—3.3-V SupplyGo
  • Added the Supply Current - ISO7842DWW and ISO7842FDWW section to the Supply Current Characteristics—3.3-V SupplyGo
  • Changed the MIN value of CMTI in Electrical Characteristics—2.5-V Supply, 5 V table From: 70 To: 100 kV/μs, deleted the TYP value of 100 kV/μsGo
  • Added the Supply Current - ISO7842DW and ISO7842FDW section to the Supply Current Characteristics—2.5-V SupplyGo
  • Added the Supply Current - ISO7842DWW and ISO7842FDWW section to the Supply Current Characteristics—2.5-V SupplyGo
  • Added text to the Application Information section: " isolation voltage per UL 1577." Go

Changes from B Revision (April 2015) to C Revision

  • Added device ISO7482F to the datasheetGo
  • Changed the Description to include: " default output is 'high' for the ISO7842 device and 'low' for the ISO7842F device.Go
  • Changed Thermal Derating Curve for Safety Limiting Current per VDE , Added Thermal Derating Curve for Safety Limiting Power per VDEGo
  • Changed From: tPLH and tPHLat 5.5V To: tPLH and tPHL at 5.0 V Go
  • Changed Default Output Delay Time Test Circuit and Voltage WaveformsGo
  • Added the Device I/O Schematics section Go

Changes from A Revision (November 2014) to B Revision

  • Changed the document title From: "Quad-Channel Digital Isolator" To: "Quad-Channel 2/2 Digital Isolator"Go
  • Added Features 2.25 V to 5.5 V Level TranslationGo
  • Changed Features From: Wide Body SOIC-16 Package To: Wide Body and Extra-Wide Body SOIC-16 Package Options Go
  • Changed the Safety and Regulatory Approvals list of FeaturesGo
  • VDE certification is now complete Go
  • Changed the Simplified Schematic and added Notes 1 and 2Go
  • Added the Power Dissipation Characteristics tableGo
  • Changed Package Insulation and Safety-Related SpecificationsGo
  • Changed Insulation Characteristics title From: DIN V VDE 0884-10 (VDE V 0884-10) and UL 1577 Insulation Characteristics To: Insulation CharacteristicsGo
  • Changed Insulation Characteristics Go
  • Changed the Test Condition of CTI of the table in Package Insulation and Safety-Related Specifications Go
  • Changed the MIN value of CTI From" > 600 V To: 600 V Go
  • Changed the table in Regulatory InformationGo
  • Changed Switching Characteristics Test Circuit and Voltage Waveforms Go
  • Changed Enable/Disable Propagation Delay Time Test Circuit and Waveform Go
  • Changed From: VCC1 To: VCCI in Default Output Delay Time Test Circuit and Voltage WaveformsGo
  • Changed Common-Mode Transient Immunity Test CircuitGo
  • Deleted INPUT-SIDE and OUTPUT-SIDE from columns 1 and 2 of Function Table Go
  • Changed the Application Information section Go
  • Changed the Application Information section Go
  • Added text and typical circuit hook-up figure to the Detailed Design Procedure section Go

Changes from * Revision (October 2014) to A Revision

  • Changed Feature From: All Agencies Approvals Pending To: All Agencies Approvals PlannedGo
  • Changed statement in the Description From; "This device is certified to meet reinforced isolation requirements by VDE and CSA." To: "This device is being reviewed for reinforced isolation certification by VDE and CSA." Go
  • Changed RIO MIN value From: 109 To: 1011 in the Package Insulation and Safety-Related Specifications table Go
  • Changed the first row of information in the Regulatory Information table Go