Overview
The ISO1042DWVR is a galvanically-isolated Controller Area Network (CAN) transceiver produced by Texas Instruments. It meets the specifications of the ISO 11898-2:2016 physical layer standard and supports both classic CAN up to 1 Mbps and CAN FD (Flexible Data Rate) up to 5 Mbps. This device is designed to provide high voltage protection and prevent noise currents from the bus from entering the local ground, making it suitable for use in conjunction with isolated power supplies. The ISO1042DWVR features a silicon dioxide (SiO2) insulation barrier with a withstand voltage of 5000 V RMS and a working voltage of 1060 V RMS, ensuring robust electromagnetic compatibility and system-level ESD, EFT, and surge immunity.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SOIC-8 (DWV) | |
| Pins | 8 | |
| Operating Temperature Range | -40 to 125 | °C |
| Data Rate (Classic CAN) | Up to 1 Mbps | |
| Data Rate (CAN FD) | Up to 5 Mbps | |
| Loop Delay | 152 ns | |
| DC Bus Fault Protection Voltage | ±70 V | |
| HBM ESD Tolerance on Bus Pins | ±16 kV | |
| Common-Mode Voltage Range | ±30 V | |
| VCC1 Voltage Range | 1.71 V to 5.5 V | |
| VCC2 Voltage Range | 4.5 V to 5.5 V | |
| Isolation 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 voltage: ±70 V
- HBM ESD tolerance on bus pins: ±16 kV
- Driver Dominant Time Out (TXD DTO)
- Undervoltage protection on VCC1 and VCC2
- Common-Mode Voltage Range: ±30 V
- Ideal passive, high impedance bus terminals when unpowered
- High CMTI: 100 kV/µs
- Supports 1.8-V, 2.5-V, 3.3-V, and 5.0-V logic interface to the CAN controller
- 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 P KV IOTM and 1500-V P KV IORM (Reinforced and Basic Options) per DIN VDE V 0884-11:2017-01
- 5000-V RMS Isolation for 1 Minute per UL 1577
- IEC 60950-1, IEC 60601-1, and EN 61010-1 certifications
- 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 ISO1042DWVR and what standard does it meet?
The ISO1042DWVR is a galvanically-isolated CAN transceiver that meets the ISO 11898-2:2016 physical layer standard.
- What data rates does the ISO1042DWVR support?
The device supports classic CAN up to 1 Mbps and CAN FD up to 5 Mbps.
- What is the loop delay of the ISO1042DWVR?
The loop delay is 152 ns.
- What kind of protection does the ISO1042DWVR offer?
The device offers DC bus fault protection voltage of ±70 V, HBM ESD tolerance on bus pins of ±16 kV, and undervoltage protection on VCC1 and VCC2.
- What is the common-mode voltage range of the ISO1042DWVR?
The common-mode voltage range is ±30 V.
- What are the voltage ranges for VCC1 and VCC2?
VCC1 voltage range is 1.71 V to 5.5 V, and VCC2 voltage range is 4.5 V to 5.5 V.
- What is the isolation voltage of the ISO1042DWVR?
The device has an isolation voltage of 5000 V RMS and a working voltage of 1060 V RMS.
- What are the safety-related certifications of the ISO1042DWVR?
The device has certifications such as 7071-V P KV IOTM and 1500-V P KV IORM, 5000-V RMS Isolation for 1 Minute per UL 1577, and IEC 60950-1, IEC 60601-1, and EN 61010-1 certifications.
- In what temperature range can the ISO1042DWVR operate?
The device operates in an ambient temperature range of –40°C to +125°C.
- What are some typical applications of the ISO1042DWVR?
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.
