Overview
The ISO1044BDR, produced by Texas Instruments, is an isolated CAN FD (Controller Area Network Flexible Data Rate) transceiver designed to meet the stringent requirements of industrial and automotive applications. This device complies with the ISO 11898-2:2016 physical layer standard, supporting both classic CAN up to 1 Mbps and CAN FD up to 5 Mbps. The ISO1044BDR features advanced isolation, high-speed data transfer, and robust protection against electrical noise and faults, making it an ideal choice for systems requiring reliable and high-speed communication.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC1, VCC2) | -0.5 | - | 6 | V |
| Logic Input and Output Voltage Range (TXD and RXD) | -0.5 | - | VCC1+0.5 | V |
| Bus Voltage (CANH, CANL) | -58 | - | 58 | V |
| Differential Voltage on Bus Pins (CANH-CANL) | -45 | - | 45 | V |
| Junction Temperature | -40 | - | 150 | °C |
| Storage Temperature | -65 | - | 150 | °C |
| Operating Temperature Range | -40 | - | 125 | °C |
| Maximum Isolation Working Voltage | - | - | 450 | VRMS |
| Maximum Transient Isolation Voltage | - | - | 4242 | VPK |
Key Features
- Compliance with ISO 11898-2:2016 standard for CAN FD and classic CAN.
- Supports data rates up to 5 Mbps in CAN FD mode and 1 Mbps in classic CAN mode.
- ±58-V DC bus fault protection and ±12-V common-mode voltage range.
- Silicon dioxide (SiO2) insulation barrier with 3000 VRMS withstand voltage and 450 VRMS working voltage.
- Enhanced electromagnetic compatibility for system-level ESD, EFT, surge, and emissions compliance.
- Wide ambient temperature range of –40°C to +125°C.
- Protection against high voltage and noise currents using isolated power supplies.
Applications
The ISO1044BDR is suitable for various industrial and automotive applications where reliable, high-speed communication is crucial. These include:
- Industrial control systems.
- Automotive networks (e.g., CAN bus).
- Medical devices requiring isolation.
- Industrial automation and robotics.
- Smart grid and renewable energy systems.
Q & A
- What is the maximum data rate supported by the ISO1044BDR in CAN FD mode?
The ISO1044BDR supports up to 5 Mbps in CAN FD mode. - What is the operating temperature range of the ISO1044BDR?
The device operates over a temperature range of –40°C to +125°C. - What type of insulation does the ISO1044BDR use?
The ISO1044BDR uses a silicon dioxide (SiO2) insulation barrier. - What is the maximum isolation working voltage of the ISO1044BDR?
The maximum isolation working voltage is 450 VRMS. - Does the ISO1044BDR provide protection against electrical noise and faults?
Yes, it offers ±58-V DC bus fault protection and protection against noise currents using isolated power supplies. - What are the common applications of the ISO1044BDR?
Common applications include industrial control systems, automotive networks, medical devices, industrial automation, and smart grid systems. - What is the maximum transient isolation voltage of the ISO1044BDR?
The maximum transient isolation voltage is 4242 VPK. - Does the ISO1044BDR comply with any specific standards?
Yes, it complies with the ISO 11898-2:2016 standard for CAN FD and classic CAN. - What is the package type of the ISO1044BDR?
The device is available in an SOIC8 package. - What is the supply voltage range for the ISO1044BDR?
The supply voltage range is from -0.5 V to 6 V for both VCC1 and VCC2.
