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 V_CC1 and V_CC2
Common-mode voltage range: ±12 V
Ideal passive, high impedance bus terminals when unpowered
High CMTI: 85 kV/µs minimum
V_CC1 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
V_CC2 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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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 V_RMS and a working voltage of 450 V_RMS. 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.

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	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

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EVALUATION BOARD Download

ISO1044 isolated CAN transceiver evaluation module

ISO1044DEVM

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User guide

Description

ISO1044DEVM is an evaluation module used to evaluate the small package, basic isolation, high speed, robust EMC isolated CAN transceiver in the SOIC-8D package. The EVM features enough test points and jumper options to evaluate the device with minimal external components.