SLLSE45F December   2010  – July 2015 ISO7420E , ISO7420FE , ISO7421E , ISO7421FE

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: VCC1 and VCC2 = 5 V ± 10%
    6. 6.6  Electrical Characteristics: VCC1 = 5 V ± 10%, VCC2 = 3.3 V ± 10%
    7. 6.7  Electrical Characteristics: VCC1 = 3.3 V ± 10%, VCC2 = 5 V ± 10%
    8. 6.8  Electrical Characteristics: VCC1 and VCC2 = 3.3 V ± 10%
    9. 6.9  Power Dissipation Characteristics
    10. 6.10 Switching Characteristics: VCC1 and VCC2 = 5 V ± 10%
    11. 6.11 Switching Characteristics: VCC1 = 5 V ± 10%, VCC2 = 3.3 V ± 10%
    12. 6.12 Switching Characteristics: VCC1 = 3.3 V ± 10%, VCC2 = 5 V ± 10%
    13. 6.13 Switching Characteristics: VCC1 and VCC2 = 3.3 V ± 10%
    14. 6.14 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 for D-8 Package
      2. 8.3.2 Insulation Characteristics
      3. 8.3.3 Regulatory Information
      4. 8.3.4 Life Expectancy vs Working Voltage
      5. 8.3.5 Safety Limiting Values
    4. 8.4 Device Functional Modes
      1. 8.4.1 Device I/O Schematic
  9. 9 Applications 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
        1. 9.2.2.1 Maximum Supply Current Equations
          1. 9.2.2.1.1 ISO7420
          2. 9.2.2.1.2 ISO7421
        2. 9.2.2.2 Typical Supply Current Equations:
          1. 9.2.2.2.1 ISO7420
          2. 9.2.2.2.2 ISO7421
      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 Resources
    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

7 Parameter Measurement Information

ISO7420E ISO7420FE ISO7421E ISO7421FE switch_test_circuit_sllse45.gif
1. The input pulse is supplied by a generator having the following characteristics: PRR ≤ 50 kHz, 50% duty cycle, tr ≤ 3 ns, tf ≤ 3 ns, ZO = 50 Ω. At the input, a 50-Ω resistor is required to terminate the Input Generator signal. It is not needed in an actual application.
2. CL = 15 pF and includes instrumentation and fixture capacitance within ±20%.
Figure 16. Switching Characteristic Test Circuit and Voltage Waveforms
ISO7420E ISO7420FE ISO7421E ISO7421FE failsafe_LLSE45.gif
1. CL = 15 pF and includes instrumentation and fixture capacitance within ±20%.
Figure 17. Fail-Safe Output Delay-Time Test Circuit and Voltage Waveforms
ISO7420E ISO7420FE ISO7421E ISO7421FE com_tran_imm_test_circ_sllse45.gif
1. CL = 15 pF and includes instrumentation and fixture capacitance within ±20%.
Figure 18. Common-Mode Transient Immunity Test Circuit