Overview
The ISO1042DWR, produced by Texas Instruments, is a galvanically-isolated Controller Area Network (CAN) transceiver. It meets the specifications of the ISO 11898-2:2016 standard and offers robust protection and performance features. The device supports both classic CAN up to 1 Mbps and CAN FD (Flexible Data Rate) up to 5 Mbps, enabling faster data transfer. It features ±70-V DC bus fault protection, ±30-V common-mode voltage range, and high electromagnetic compatibility (EMC). The ISO1042DWR is designed for use in harsh industrial environments and is available in both basic and reinforced isolation options.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| VCC1 Voltage Range | 1.71 to 5.5 | V |
| VCC2 Voltage Range | 4.5 to 5.5 | V |
| Data Rate (Classic CAN) | Up to 1 Mbps | |
| Data Rate (CAN FD) | Up to 5 Mbps | |
| DC Bus Fault Protection | ±70 V | |
| Common-Mode Voltage Range | ±30 V | |
| Loop Delay | 152 ns | |
| ESD Tolerance on Bus Pins | ±16 kV | |
| Ambient Temperature Range | –40°C to +125°C | |
| Package Options | 16-SOIC, 8-SOIC | |
| Isolation Withstand Voltage | 5000 VRMS | |
| Surge Test Voltage | Up to 10 kVPK (Reinforced), 6 kVPK (Basic) |
Key Features
- Meets ISO 11898-2:2016 physical layer standard
- Supports classic CAN and CAN FD with data rates up to 5 Mbps
- Low loop delay of 152 ns
- Protection features include DC bus fault protection, HBM ESD tolerance, Driver Dominant Time Out (TXD DTO), and undervoltage protection
- High common-mode transient immunity (CMTI) of 100 kV/µs
- Robust EMC with system-level ESD, EFT, and surge immunity
- Ideal passive, high impedance bus terminals when unpowered
- Safety-related certifications including UL 1577, IEC 60950-1, IEC 60601-1, and EN 61010-1
Applications
- AC and servo drives
- Solar inverters
- PLC and DCS communication modules
- Elevators and escalators
- Industrial power supplies
- Battery charging and management systems
Q & A
- What is the ISO1042DWR and what standard does it meet? The ISO1042DWR is a galvanically-isolated CAN transceiver that meets the ISO 11898-2:2016 standard.
- What are the supported data rates for the ISO1042DWR? The device supports classic CAN up to 1 Mbps and CAN FD up to 5 Mbps.
- What is the DC bus fault protection voltage of the ISO1042DWR? The device offers ±70-V DC bus fault protection.
- What is the common-mode voltage range of the ISO1042DWR? The common-mode voltage range is ±30 V.
- What are the package options for the ISO1042DWR? The device is available in 16-SOIC and 8-SOIC packages.
- What is the isolation withstand voltage of the ISO1042DWR? The isolation withstand voltage is 5000 VRMS.
- What safety certifications does the ISO1042DWR have? The device has certifications including UL 1577, IEC 60950-1, IEC 60601-1, and EN 61010-1.
- What is the ambient temperature range for the ISO1042DWR? The ambient temperature range is –40°C to +125°C.
- Does the ISO1042DWR support undervoltage protection? Yes, the device has undervoltage detection and protection on both VCC1 and VCC2 supply pins.
- What are some typical applications of the ISO1042DWR? Typical applications include AC and servo drives, solar inverters, PLC and DCS communication modules, elevators and escalators, industrial power supplies, and battery charging and management systems.
