Product details

Rating Catalog Isolation rating Basic, Reinforced Data rate (max) (Mbps) 5 Working isolation voltage (VIOWM) (Vrms) 1060 Surge isolation voltage (VIOSM) (VPK) 6000, 10000 Transient isolation voltage (VIOTM) (VPK) 7071 Withstand isolation voltage (VISO) (Vrms) 5000 CMTI (min) (kV/µs) 85 Supply voltage (V) 1.71 to 5.5, 4.5 to 5.5 Bus fault voltage (V) -70 to 70 Common-mode voltage (V) -30 to 30 ESD HBM (kV) 16 Creepage (min) (mm) 8, 8.5 Clearance (min) (mm) 8, 8.5 Operating temperature range (°C) -40 to 125
Rating Catalog Isolation rating Basic, Reinforced Data rate (max) (Mbps) 5 Working isolation voltage (VIOWM) (Vrms) 1060 Surge isolation voltage (VIOSM) (VPK) 6000, 10000 Transient isolation voltage (VIOTM) (VPK) 7071 Withstand isolation voltage (VISO) (Vrms) 5000 CMTI (min) (kV/µs) 85 Supply voltage (V) 1.71 to 5.5, 4.5 to 5.5 Bus fault voltage (V) -70 to 70 Common-mode voltage (V) -30 to 30 ESD HBM (kV) 16 Creepage (min) (mm) 8, 8.5 Clearance (min) (mm) 8, 8.5 Operating temperature range (°C) -40 to 125
SOIC (DW) 16 106.09 mm² 10.3 x 10.3 SOIC (DWV) 8 67.275 mm² 5.85 x 11.5
  • 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
  • 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
  • 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
  • 16-SOIC and 8-SOIC package options
  • Automotive version available: ISO1042-Q1
  • Safety-related certifications:
    • 7071-VPK VIOTM and 1500-VPK VIORM (Reinforced and Basic Options) per DIN VDE V 0884-11:2017-01
    • 5000-VRMS Isolation for 1 Minute per UL 1577
    • IEC 60950-1, IEC 60601-1 and EN 61010-1 certifications
    • CQC, TUV and CSA certifications
  • 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
  • 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
  • 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
  • 16-SOIC and 8-SOIC package options
  • Automotive version available: ISO1042-Q1
  • Safety-related certifications:
    • 7071-VPK VIOTM and 1500-VPK VIORM (Reinforced and Basic Options) per DIN VDE V 0884-11:2017-01
    • 5000-VRMS Isolation for 1 Minute per UL 1577
    • IEC 60950-1, IEC 60601-1 and EN 61010-1 certifications
    • CQC, TUV and CSA certifications

The ISO1042 device is a galvanically-isolated controller area network (CAN) transceiver that meets the specifications of the ISO11898-2 (2016) standard. The ISO1042 device offers ±70-V DC bus fault protection and ±30-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 5000 VRMS and a working voltage of 1060 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 ISO1042 device is available for both basic and reinforced isolation (see Reinforced and Basic Isolation Options). The ISO1042 device supports a wide ambient temperature range of –40°C to +125°C. The device is available in the SOIC-16 (DW) package and a smaller SOIC-8 (DWV) package.

The ISO1042 device is a galvanically-isolated controller area network (CAN) transceiver that meets the specifications of the ISO11898-2 (2016) standard. The ISO1042 device offers ±70-V DC bus fault protection and ±30-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 5000 VRMS and a working voltage of 1060 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 ISO1042 device is available for both basic and reinforced isolation (see Reinforced and Basic Isolation Options). The ISO1042 device supports a wide ambient temperature range of –40°C to +125°C. The device is available in the SOIC-16 (DW) package and a smaller SOIC-8 (DWV) package.

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Technical documentation

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Type Title Date
* Data sheet ISO1042 Isolated CAN Transceiver With 70-V Bus Fault Protection and Flexible Data Rate datasheet (Rev. E) PDF | HTML 28 Oct 2019
White paper Understanding Functional Safety FIT Base Failure Rate Estimates per IEC 62380 and SN 29500 (Rev. A) PDF | HTML 30 Apr 2024
Certificate VDE Certificate for Reinforced Isolation for DIN EN IEC 60747-17 (Rev. S) 29 Feb 2024
Certificate VDE Certificate for Basic Isolation for DIN EN IEC 60747-17 (Rev. W) 31 Jan 2024
White paper Understanding failure modes in isolators (Rev. B) PDF | HTML 29 Jan 2024
Certificate CQC Certificate for ISOxxDWx (Rev. J) 27 Mar 2023
Certificate CSA Certificate for ISO1042xDW 16 Mar 2023
Certificate CSA Certificate for ISO1042xDWV 16 Mar 2023
Certificate CQC Certificate for ISOxxDWV (Rev. A) 07 Feb 2023
Product overview Isolating a CAN Bus (Rev. A) PDF | HTML 13 Jan 2023
Certificate TUV Certificate for Isolation Devices (Rev. K) 05 Aug 2022
Certificate UL Certificate of Compliance File E181974 Vol 4 Sec 6 (Rev. P) 05 Aug 2022
Application brief Isolate Your CAN Systems Without Compromising on Performance or Space (Rev. F) PDF | HTML 04 Aug 2022
White paper Why are Digital Isolators Certified to Meet Electrical Equipment Standards? 16 Nov 2021
White paper Distance Through Insulation: How Digital Isolators Meet Certification Requiremen PDF | HTML 11 Jun 2021
Application brief How to Isolate Signal and Power in Isolated CAN Systems (Rev. C) PDF | HTML 25 May 2021
Application note Top Design Questions about Isolating CAN Nodes Bus Design (Rev. A) PDF | HTML 19 May 2021
Application note Isolated CAN Reference Design (Rev. E) 22 Jul 2020
Technical article Now that you have isolated your CAN signals, what about power? PDF | HTML 09 Jan 2019
Technical article 5 ways TI’s tiny devices deliver huge innovations to engineers PDF | HTML 08 Nov 2018
Technical article Reduce emissions and drive up immunity in your isolated CAN systems PDF | HTML 07 Nov 2018
EVM User's guide ISO1042DWV Isolated CAN Transceiver Evaluation Module 11 Jul 2018
EVM User's guide ISO1042DW Isolated CAN Transceiver Evaluation Module (Rev. A) 09 Jul 2018
Application note How to Design Isolated CAN Systems With Correct Bus Protection 19 Jun 2018

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

ISO1042DWEVM — ISO1042DW High Speed, High Performance, Robust EMC Isolated CAN Evaluation Module

ISO1042DWEVM is an evaluation module used to evaluate the high performance, reinforced isolated CAN ISO1042 in a 16-pin wide body SOIC package (package code DW). The EVM features enough test points and jumper options to evaluate the device with minimal external components.

User guide: PDF
Not available on TI.com
Evaluation board

ISO1042DWVEVM — ISO1042DWV High Speed, High Performance, Robust EMC Isolated CAN Evaluation Module

ISO1042DWVEVM is an evaluation module used to evaluate the high performance, reinforced isolated CAN ISO1042 in an 8-pin wide body SOIC package (package code DWV). The EVM features enough test points and jumper options to evaluate the device with minimal external components.
User guide: PDF
Not available on TI.com
Evaluation board

RECOM-3P-R-REF03-CAN1 — Recom isolated CAN and power reference board with ISO1042 and R1SX-3.305/H isolated DC/DC converter

Recom's R-REF03-CAN1 reference board allows design engineers to quickly develop and analyze isolated CAN bus systems. It includes the galvanically-isolated ISO1042 CAN transceiver, which supports up to 5-Mbps data rate in CAN FD mode allowing much faster transfer of payload compared to classic (...)
Simulation model

ISO1042 IBIS Model

SLLM395.ZIP (84 KB) - IBIS Model
Reference designs

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This reference design is a low standby and ship mode current consumption and high SOC gauging accuracy 13S, 48-V Li-ion battery pack design. It monitors each cell voltage, pack current and temperature with high accuracy and protects the Li-ion battery pack against overvoltage, undervoltage, over (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-010253 — Battery control unit reference design for energy storage systems

This reference design is a central controller for a high-voltage Lithium-ion (Li-ion), lithium iron phosphate (LiFePO4) battery rack. This design provides driving circuits for high-voltage relay, communication interfaces, (including RS-485, controller area network (CAN), daisy chain, and Ethernet), (...)
Design guide: PDF
Reference designs

TIDA-010247 — High-side N-MOSFET control (up to 32s) battery pack reference design with stacked battery monitor

This reference design is a high-side, N-channel MOSFET control (up to 32s) battery pack, using the stacked BQ769x2 battery monitor family. This design monitors each cell voltage, pack current, cell and MOSFET temperature and protects the battery pack for secure safe use. The high-side N-channel (...)
Design guide: PDF
Reference designs

TIDA-010216 — 16s battery pack reference design with low-side MOSFET control for large capacity applications

This reference design is a low standby and ship-mode current consumption and high cell voltage accuracy 16s Lithium-ion (Li-ion) LiFePO4 battery pack. The design monitors each cell voltage, pack current, cell and MOSFET temperature with high accuracy and protects the Li-ion and LiFePO4 battery (...)
Design guide: PDF
Package Pins CAD symbols, footprints & 3D models
SOIC (DW) 16 Ultra Librarian
SOIC (DWV) 8 Ultra Librarian

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