SLLSFF7B May   2021  – August 2026 ISOW1044

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison Table
  6. 5 Pin Configuration and Functions
  7. 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
    10. 6.10 Supply Current Characteristics
    11. 6.11 Switching Characteristics
    12. 6.12 Insulation Characteristics Curves
    13. 6.13 Typical Characteristics
  8. 7 Parameter Measurement Information
  9. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Power Isolation
    3. 8.3 Signal Isolation
    4. 8.4 CAN Transceiver
    5. 8.5 Remote Wake Request Using Wake-Up Pattern (WUP) in Standby Mode
    6. 8.6 Functional Block Diagram
    7. 8.7 Feature Description
      1. 8.7.1 CAN Bus States
      2. 8.7.2 Digital Inputs and Outputs: TXD (Input) and RXD (Output)
      3. 8.7.3 TXD Dominant Timeout (DTO)
      4. 8.7.4 Power-Up and Power-Down Behavior
      5. 8.7.5 Protection Features
      6. 8.7.6 Floating Pins, Unpowered Device
      7. 8.7.7 Glitch-Free Power Up and Power Down
    8. 8.8 Device Functional Modes
    9. 8.9 Device I/O Schematics
  10. 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
        1. 9.2.2.1 Bus Loading, Length and Number of Nodes
        2. 9.2.2.2 CAN Termination
      3. 9.2.3 Application Curve
        1. 9.2.3.1 Insulation Lifetime
    3. 9.3 Power Supply Recommendations
    4. 9.4 Layout
      1. 9.4.1 Layout Guidelines
      2. 9.4.2 Layout Example
  11. 10Device and Documentation Support
    1. 10.1 Documentation Support
      1. 10.1.1 Related Documentation
    2. 10.2 Receiving Notification of Documentation Updates
    3. 10.3 Support Resources
    4. 10.4 Trademarks
    5. 10.5 Electrostatic Discharge Caution
    6. 10.6 Glossary
  12. 11Revision History
  13. 12Mechanical, Packaging, and Orderable Information

7 Parameter Measurement Information

ISOW1044 Driver Voltage, Current and Test Definitions Figure 7-1 Driver Voltage, Current and Test Definitions
ISOW1044 Bus Logic State Voltage Definitions Figure 7-2 Bus Logic State Voltage Definitions
ISOW1044 Driver Test Circuit and Voltage Waveforms
A.

The input pulse is supplied by a generator having the following characteristics: PRR ≤ 125kHz, 50% duty cycle, tr ≤ 6ns, tf ≤ 6ns, ZO = 50Ω.

Figure 7-3 Driver Test Circuit and Voltage Waveforms
ISOW1044 Receiver Voltage and Current Definitions Figure 7-4 Receiver Voltage and Current Definitions
ISOW1044 Receiver Test Circuit and Voltage Waveforms
A. The input pulse is supplied by a generator having the following characteristics: PRR ≤ 125kHz, 50% duty cycle,
tr ≤ 6ns, tf ≤ 6ns, ZO = 50Ω.
Figure 7-5 Receiver Test Circuit and Voltage Waveforms
Table 7-1 Receiver Differential Input Voltage Threshold Test
INPUT OUTPUT
VCANH VCANL |VID| RXD
-11.5V -12.5V 1000mV L VOL
12.5V 11.5V 1000mV L
-8.55V -9.45V 900mV L
9.45V 8.55V 900mV L
-8.75V -9.25V 500mV H VOH
9.25V 8.75V 500mV H
-11.8V -12.2V 400mV H
12.2V 11.8V 400mV H
Open Open X H
ISOW1044 tLOOP and CAN FD Timing Parameter Measurement Figure 7-6 tLOOP and CAN FD Timing Parameter Measurement
ISOW1044 Dominant Time-out Test Circuit and Voltage Waveforms
A. The input pulse is supplied by a generator having the following characteristics: tr ≤ 6ns, tf ≤ 6ns, ZO = 50Ω.
Figure 7-7 Dominant Time-out Test Circuit and Voltage Waveforms
ISOW1044 Driver Short-Circuit Current Test Circuit and Waveforms Figure 7-8 Driver Short-Circuit Current Test Circuit and Waveforms
ISOW1044 Common-Mode Transient Immunity Test Circuit Figure 7-9 Common-Mode Transient Immunity Test Circuit
ISOW1044 Switching Characteristics Test Circuit and Voltage Waveforms
A. VCCI and VCCO refers to the power supplies VIO and VISOIN, respectively. CL = 15pF and The input pulse is supplied by a generator having the following characteristics: PRR ≤ 50kHz, 50% duty cycle, tr ≤ 3ns, tf ≤ 3ns, ZO = 50Ω. At the input, 50Ω resistor is required to terminate Input Generator signal. The resistor is not needed in actual application.
B. B. CL = 15pF and includes instrumentation and fixture capacitance within ±20%.
Figure 7-10 Switching Characteristics Test Circuit and Voltage Waveforms