Overview
The ISO1042DW is a galvanically-isolated Controller Area Network (CAN) transceiver produced by Texas Instruments. It meets the specifications of the ISO 11898-2:2016 standard and is designed to provide robust and reliable communication in harsh industrial environments. The device offers ±70-V DC bus fault protection and a ±30-V common-mode voltage range, ensuring high reliability and safety. It supports both classic CAN up to 1 Mbps and CAN FD (Flexible Data Rate) up to 5 Mbps, enabling faster data transfer. The ISO1042DW features a silicon dioxide (SiO2) insulation barrier with a withstand voltage of 5000 V RMS and a working voltage of 1060 V RMS, making it suitable for applications requiring high isolation and protection against high voltages and noise currents.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SOIC (DW) | - |
| Pins | 16 | - |
| Operating Temperature Range | -40 to 125 | °C |
| Bus Fault Protection Voltage | ±70 | V |
| Common-Mode Voltage Range | ±30 | V |
| ESD Tolerance on Bus Pins | ±16 kV | - |
| Loop Delay | 152 | ns |
| VCC1 Voltage Range | 1.71 to 5.5 | V |
| VCC2 Voltage Range | 4.5 to 5.5 | V |
| Isolation Withstand Voltage | 5000 | V RMS |
| Working Voltage | 1060 | V RMS |
Key Features
- Meets the ISO 11898-2:2016 physical layer standard
- Supports classic CAN up to 1 Mbps and CAN FD up to 5 Mbps
- Low loop delay: 152 ns
- Protection features: DC bus fault protection, HBM ESD tolerance, Driver Dominant Time Out (TXD DTO), and undervoltage protection on VCC1 and VCC2
- Ideal passive, high impedance bus terminals when unpowered
- High CMTI: 100 kV/µs
- Robust Electromagnetic Compatibility (EMC): system-level ESD, EFT, and surge immunity, low emissions
- Ambient Temperature Range: –40°C to +125°C
- Available in 16-SOIC and 8-SOIC package options
- Automotive version available: ISO1042-Q1
- Safety-related certifications: 7071-V PKV IOTM, 1500-V PKV IORM, 5000-V RMS Isolation, IEC 60950-1, IEC 60601-1, EN 61010-1, CQC, TUV, and CSA certifications
Applications
- AC and servo drives
- Solar inverters
- PLC and DCS communication modules
- Elevators and escalators
- Industrial power supplies
- Battery charging and management
Q & A
- What is the ISO1042DW and what standard does it meet?
The ISO1042DW is a galvanically-isolated CAN transceiver that meets the ISO 11898-2:2016 standard. - What are the data rates supported by the ISO1042DW?
The device supports classic CAN up to 1 Mbps and CAN FD up to 5 Mbps. - What is the bus fault protection voltage of the ISO1042DW?
The device offers ±70-V DC bus fault protection. - What is the common-mode voltage range of the ISO1042DW?
The common-mode voltage range is ±30 V. - What are the operating temperature ranges for the ISO1042DW?
The device operates in the temperature range of –40°C to +125°C. - What are the package options available for the ISO1042DW?
The device is available in 16-SOIC and 8-SOIC package options. - Does the ISO1042DW have any safety-related certifications?
Yes, it has certifications such as 7071-V PKV IOTM, 1500-V PKV IORM, 5000-V RMS Isolation, IEC 60950-1, IEC 60601-1, EN 61010-1, CQC, TUV, and CSA. - What are some typical applications of the ISO1042DW?
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. - How does the ISO1042DW protect against high voltage and noise currents?
The device uses a silicon dioxide (SiO2) insulation barrier and works in conjunction with isolated power supplies to protect against high voltage and prevent noise currents from entering the local ground. - What is the significance of the low loop delay in the ISO1042DW?
The low loop delay of 152 ns ensures efficient and fast data transfer.
