SLLSFF7B
May 2021 – August 2026
ISOW1044
PRODUCTION DATA
1
1
Features
2
Applications
3
Description
4
Device Comparison Table
5
Pin Configuration and Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Power Ratings
6.6
Insulation Specifications
6.7
Safety-Related Certifications
6.8
Safety Limiting Values
6.9
Electrical Characteristics
6.10
Supply Current Characteristics
6.11
Switching Characteristics
6.12
Insulation Characteristics Curves
6.13
Typical Characteristics
7
Parameter Measurement Information
8
Detailed Description
8.1
Overview
8.2
Power Isolation
8.3
Signal Isolation
8.4
CAN Transceiver
8.5
Remote Wake Request Using Wake-Up Pattern (WUP) in Standby Mode
8.6
Functional Block Diagram
8.7
Feature Description
8.7.1
CAN Bus States
8.7.2
Digital Inputs and Outputs: TXD (Input) and RXD (Output)
8.7.3
TXD Dominant Timeout (DTO)
8.7.4
Power-Up and Power-Down Behavior
8.7.5
Protection Features
8.7.6
Floating Pins, Unpowered Device
8.7.7
Glitch-Free Power Up and Power Down
8.8
Device Functional Modes
8.9
Device I/O Schematics
9
Application and Implementation
9.1
Application Information
9.2
Typical Application
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.2.1
Bus Loading, Length and Number of Nodes
9.2.2.2
CAN Termination
9.2.3
Application Curve
9.2.3.1
Insulation Lifetime
9.3
Power Supply Recommendations
9.4
Layout
9.4.1
Layout Guidelines
9.4.2
Layout Example
10
Device and Documentation Support
10.1
Documentation Support
10.1.1
Related Documentation
10.2
Receiving Notification of Documentation Updates
10.3
Support Resources
10.4
Trademarks
10.5
Electrostatic Discharge Caution
10.6
Glossary
11
Revision History
12
Mechanical, Packaging, and Orderable Information
1
Features
Meets the requirements of ISO 11898-2:2016 physical layer standards
Support of Classical CAN: 1Mbps
Optimized for CAN FD: 2 and 5Mbps
Integrated DC-DC converter with low-emissions, low-noise
Meets CISPR 32 and EN 55032 Class B with greater than 6dB margin on a two-layer PCB
Low frequency power converter at 25MHz enabling low noise performance
Additional 10Mbps GPIO channel
High efficiency output power
Typical efficiency: 47%
Isolated output voltage accuracy: ± 5%
Additional output current: 20mA
Independent power supply for CAN and DC-DC
Logic supply (V
IO
): 1.71V to 5.5V
Power converter supply (V
DD
): 4.5V to 5.5V
Fault-Protected CAN FD Transceiver
DC Bus fault protection voltage: ± 58V
Receiver common mode input voltage: ±12V
Remote wakeup using BUS wake-up pattern
Typical loop delay: 167ns
Reinforced and Basic isolation options
High CMTI: 100kV/µs (typical)
High ESD bus protection with respect to GND2
HBM ESD: ±12kV
IEC 61000-4-2 contact discharge: ±8kV
Operating temperature range: -40°C to 125°C
Current limit and thermal shutdown
20-pin wide SOIC package
Safety-Related Certifications
:
VDE Reinforced and Basic insulation per
DIN EN IEC 60747-17 (VDE 0884-17)
UL 1577 component recognition program
IEC 62368-1, IEC 61010-1, IEC 60601-1 and GB 4943.1 certifications