SLLSEY2E March 2017  – November 2017 ISOW7840 , ISOW7841 , ISOW7842 , ISOW7843 , ISOW7844

PRODUCTION DATA. 

  1. Features
  2. Applications
  3. Description
  4. Revision History
  5. Description (continued)
  6. Pin Configuration and Functions
  7. Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Power Ratings
    6. 7.6 Insulation Specifications
    7. 7.7 Safety-Related Certifications
    8. 7.8 Safety Limiting Values
    9. 7.9 Electrical Characteristics—5-V Input, 5-V Output
    10. 7.10Supply Current Characteristics—5-V Input, 5-V Output
    11. 7.11Electrical Characteristics—5-V Input, 3.3-V Output
    12. 7.12Supply Current Characteristics—5-V Input, 3.3-V Output
    13. 7.13Electrical Characteristics—3.3-V Input, 3.3-V Output
    14. 7.14Supply Current Characteristics—3.3-V Input, 3.3-V Output
    15. 7.15Switching Characteristics—5-V Input, 5-V Output
    16. 7.16Switching Characteristics—5-V Input, 3.3-V Output
    17. 7.17Switching Characteristics—3.3-V Input, 3.3-V Output
    18. 7.18Insulation Characteristics Curves
    19. 7.19Typical Characteristics
  8. Parameter Measurement Information
  9. Detailed Description
    1. 9.1Overview
    2. 9.2Functional Block Diagram
    3. 9.3Feature Description
      1. 9.3.1Electromagnetic Compatibility (EMC) Considerations
      2. 9.3.2Power-Up and Power-Down Behavior
      3. 9.3.3Current Limit, Thermal Overload Protection
    4. 9.4Device Functional Modes
      1. 9.4.1Device I/O Schematics
  10. 10Application and Implementation
    1. 10.1Application Information
    2. 10.2Typical Application
      1. 10.2.1Design Requirements
      2. 10.2.2Detailed Design Procedure
      3. 10.2.3Application Curve
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1Layout Guidelines
      1. 12.1.1PCB Material
    2. 12.2Layout Example
  13. 13Device and Documentation Support
    1. 13.1Device Support
      1. 13.1.1Development Support
    2. 13.2Documentation Support
      1. 13.2.1Related Documentation
    3. 13.3Related Links
    4. 13.4Receiving Notification of Documentation Updates
    5. 13.5Community Resources
    6. 13.6Trademarks
    7. 13.7Electrostatic Discharge Caution
    8. 13.8Glossary
  14. 14Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
  • DWE|16
Orderable Information

Features

  • Integrated High-Efficiency DC-DC Converter With On-Chip Transformer
  • 3-V to 5.5-V Wide Input Supply Range
  • Regulated 5-V or 3.3-V Output
  • Up to 0.65-W Output Power
  • 5 V to 5 V; 5 V to 3.3 V: Available Load Current ≥ 130 mA
  • 3.3 V to 3.3 V: Available Load Current ≥ 75 mA
  • Soft-Start to Limit Inrush Current
  • Overload and Short-Circuit Protection
  • Thermal Shutdown
  • Default Output: High and Low Options
  • Signaling Rate Up to 100 Mbps
  • Low Propagation Delay: 13 ns Typ (5-V Supply)
  • High CMTI: ±100 kV/µs Minimum
  • Robust Electromagnetic Compatibility (EMC)
    • System-Level ESD, EFT, and Surge Immunity
    • Low Emissions
  • 16-pin Wide SOIC Package
  • Extended Temperature Range: –40°C to +125°C
  • Safety-Related Certifications:
    • 7071-VPK Reinforced Isolation per DIN V VDE V 0884-11:2017-01
    • 5000-VRMS Isolation for 1 Minute per UL 1577
    • CSA Certification per IEC 60950-1, IEC 62368-1 and IEC 60601-1 End Equipment Standards
    • CQC Approval per GB4943.1-2011
    • TUV Certification According to EN 60950-1 and EN 61010-1

Applications

  • Industrial Automation
  • Motor Control
  • Grid Infrastructure
  • Medical Equipment
  • Test and Measurement

Description

The ISOW784x is a family of high-performance, quad-channel reinforced digital isolators with an integrated high-efficiency power converter. The integrated DC-DC converter provides up to 650 mW of isolated power at high efficiency and can be configured for various input and output voltage configurations. Therefore these devices eliminate the need for a separate isolated power supply in space-constrained isolated designs.

The ISOW784x family of devices provide high electromagnetic immunity and low emissions while isolating CMOS or LVCMOS digital I/Os. The signal-isolation channel has a logic input and output buffer separated by a silicon dioxide (SiO2) insulation barrier, whereas, power isolation uses on-chip transformers separated by thin film polymer as insulating material. Various configurations of forward and reverse channels are available. If the input signal is lost, the default output is high for the ISOW784x devices and low for the devices with the F suffix (see the Device Features).

Device Information(1)

PART NUMBERPACKAGEBODY SIZE (NOM)
ISOW7840
ISOW7841
ISOW7842
ISOW7843
ISOW7844
SOIC (16)10.30 mm × 7.50 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Simplified Schematic

ISOW7840 ISOW7841 ISOW7842 ISOW7843 ISOW7844 isow78xx-simplified-schematic.gif

Revision History

Changes from D Revision (November 2017) to E Revision

  • Changed the ISOW7843 device from Preview to Production DataGo
  • Added the ISOW7843 current parameters to each Supply Current Characteristics table Go
  • Added the supply current versus data rate graphs for the ISOW7843 in the Typical Characteristics sectionGo

Changes from C Revision (October 2017) to D Revision

  • Changed the ISOW7840 device from Preview to Production DataGo
  • Added the ISOW7840 current parameters to each Supply Current Characteristics table Go
  • Changed IISO to ILOAD and the value of wave clock input from 0.5, 5, and 50 MHz to 1, 10, and 100 Mbps in the test conditions for the ISOW7841 current parameters in each Supply Current Characteristics table Go
  • Deleted no external ILOAD test condition for the current available to isolated supply parameter for the ISOW7842 and ISOW7844 devices in each Supply Current Characteristics table Go
  • Changed the labels of the curves in the Thermal Derating Curve for Safety Limiting Current per VDEGo
  • Added the supply current versus data rate graphs for the ISOW7840 in the Typical Characteristics sectionGo
  • Changed the ground symbols for the input schematic for devices with F suffix and the SEL pin in the Device I/O Schematics figureGo

Changes from B Revision (June 2017) to C Revision

  • Changed the Safety-Related Certifications Features listGo
  • Changed header row From: DIN V VDE 0884-10 (VDE V 0884-10): 2016-12 To: DIN V VDE 0884-11:2017-01 in the Insulation SpecificationsGo
  • Changed VIOSM test conditions in Insulation SpecificationsGo
  • Changed VISO(UL) test conditions in Insulation SpecificationsGo
  • Changed the Safety-Related Certifications tableGo
  • Changed Note 1 of the Safety Limiting Values tableGo
  • Added the ISOW7842 current parameters to each Supply Current table Go
  • Added the supply current versus data rate graphs for the ISOW7842 in the Typical Characteristics sectionGo

Changes from A Revision (March 2017) to B Revision

  • Added the ISOW7844 current parameters to each Supply Current table Go

Changes from * Revision (March 2017) to A Revision

  • Changed the maximum propagation delay time and the typical and maximum values for pulse width distortion in all Switching Characteristics tablesGo
  • Changed the maximum limit for output signal rise and fall times from 3 to 4 ns in the Switching Characteristics—5-V Input, 3.3-V Output tableGo