Isolated CAN FD transceiver in small package
Product details
Parameters
Package | Pins | Size
Features
- Meets the ISO 11898-2:2016 physical layer standard
- Supports classic CAN up to 1 Mbps and FD (flexible data rate) up to 5 Mbps
- Protection features
- DC Bus Fault Protection Voltage: ±58 V
- IEC ESD tolerance on bus pins: ±8 kV
- HBM ESD tolerance on bus pins: ±10 kV
- Driver dominant time out (TXD DTO)
- Undervoltage protection on VCC1 and VCC2
- Common-mode voltage range: ±12 V
- Ideal passive, high impedance bus terminals when unpowered
- High CMTI: 85 kV/µs minimum
- VCC1 voltage range: 1.71 V to 5.5 V
- Supports 1.8-V, 2.5-V, 3.3-V and 5.0-V logic interface to the CAN controller
- VCC2 voltage range: 4.5 V to 5.5 V
- Robust electromagnetic compatibility (EMC)
- System-Level ESD, EFT, and surge Immunity
- Low Emissions
- Ambient temperature range: –40°C to +125°C
- 8-SOIC package
- Safety-related certifications:
- All certifications planned
- VDE reinforced insulation per DIN VDE V 0884-11:2017-01
- UL 1577 component recognition program
- IEC 60950-1, IEC 62368-1, IEC 61010-1 and GB 4943.1-2011 certifications
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Description
The ISO1044B device is a galvanically-isolated controller area network (CAN) transceiver that meets the specifications of the ISO11898-2 (2016) standard. The ISO1044B device offers ±58-V DC bus fault protection and ±12-V common-mode voltage range. The device supports up to 5-Mbps data rate in CAN FD mode allowing much faster transfer of payload compared to classic CAN. This device uses a silicon dioxide (SiO2) insulation barrier with a withstand voltage of 3000 VRMS and a working voltage of 450 VRMS. Electromagnetic compatibility has been significantly enhanced to enable system-level ESD, EFT, surge, and emissions compliance. Used in conjunction with isolated power supplies, the device protects against high voltage, and prevents noise currents from the bus from entering the local ground. The ISO1044B device supports a wide ambient temperature range of –40°C to +125°C. The device is available in the small SOIC-8 (D) package which significantly reduces the solution size compared to a traditional approach using optocouplers to isolate the CAN transceiver.
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | ISO1044 Isolated CAN FD Transceiver in Small Package datasheet (Rev. A) | Jul. 15, 2020 |
More literature | UL Certification (Rev. O) | Feb. 03, 2021 | |
Application note | How to Isolate Signal and Power in Isolated CAN Systems (Rev. B) | Oct. 08, 2020 | |
Application note | Isolated CAN Reference Design (Rev. E) | Jul. 22, 2020 | |
Application note | Top Design Questions about Isolating CAN Nodes | Apr. 24, 2020 | |
Application note | How to Design an Isolated CAN Port for Space-Constrained Industrial Applications | Apr. 08, 2020 | |
Application note | Isolate your CAN systems without compromising on performance or space (Rev. D) | Apr. 06, 2020 | |
User guide | ISO1044DEVM Isolated CAN Evaluation Module | Mar. 20, 2020 | |
Technical article | The hidden cost of optocouplers for isolated RS-485 and CAN designs | Jan. 28, 2019 | |
Technical article | Now that you have isolated your CAN signals, what about power? | Jan. 09, 2019 | |
Technical article | Reduce emissions and drive up immunity in your isolated CAN systems | Nov. 07, 2018 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
Features
- Basic isolation (3kVrms), high speed, robust EMC isolated CAN
- Wide supply and level translation range: 1.71 V to 5.5 V
- High signaling rate: CAN FD up to 5 Mbps
- Isolation barrier life > 25 years
- Small SOIC-8D package
Design tools & simulation
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
SOIC (D) | 8 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
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