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Product details

Parameters

Rating Automotive Isolation rating (Vrms) 5000 Data rate (Max) (Mbps) 5 Operating temperature range (C) -40 to 125 Surge voltage capability (Vpk) 10000, 6000 Bus fault voltage (V) -70 to 70 Common mode voltage (V) -30 to 30 HBM ESD (kV) 8 open-in-new Find other Isolated CAN transceivers

Package | Pins | Size

SOIC (DW) 16 77 mm² 10.3 x 7.5 SOIC (DWV) 8 67 mm² 5.85 x 11.5 open-in-new Find other Isolated CAN transceivers

Features

  • AEC Q100: Qualified for automotive applications
  • Grade 1: –40°C to 125°C ambient temperature
  • 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
  • 16-SOIC and 8-SOIC package options
  • Industrial version available: ISO1042
  • 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
    • CQC, TUV and CSA certifications

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Description

The ISO1042-Q1 device is a galvanically-isolated controller area network (CAN) transceiver that meets the specifications of the ISO11898-2 (2016) standard. The ISO1042-Q1 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-Q1 device is available for both basic and reinforced isolation (see Reinforced and Basic Isolation Options). The ISO1042-Q1 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
* Datasheet ISO1042-Q1 Automotive Isolated CAN Transceiver With 70-V Bus Fault Protection and Flexible Data Rate datasheet (Rev. A) Oct. 28, 2019
Technical articles Streamlining isolated CAN and power interface designs for 48-V HEV systems May 01, 2020
Application notes Top Design Questions about Isolating CAN Nodes Apr. 24, 2020
Application notes How to Isolate Signal and Power in Isolated CAN Systems (Rev. A) Apr. 06, 2020
Application notes Isolate your CAN systems without compromising on performance or space (Rev. D) Apr. 06, 2020
Application notes Isolated CAN Reference Design (Rev. D) Apr. 06, 2020
More literature TUV certificate for isolation devices (Rev. I) Mar. 14, 2020
Technical articles What the DIN VDE V 0884-11:2017-01 standard means for your isolated designs Feb. 27, 2020
Technical articles Why signal isolation matters in 48-V HEV/EV systems Nov. 20, 2019
More literature CSA Certification (Rev. P) Nov. 19, 2019
More literature VDE certificate for reinforced isolation for DIN VDE V 0884-11:2017-01 (Rev. N) Nov. 13, 2019
More literature VDE certificate for basic isolation for DIN VDE V 0884-11:2017-01 (Rev. Q) Sep. 20, 2019
More literature CQC Certification (Rev. F) Sep. 13, 2019
More literature UL Certification (Rev. N) Jul. 30, 2019
Third party documents Simplify Isolated CAN, Power Interfaces for HEV 48-V Systems Jul. 16, 2019
Technical articles Now that you have isolated your CAN signals, what about power? Jan. 09, 2019
Application notes How to Design Isolated CAN Systems With Correct Bus Protection Jun. 19, 2018
White papers Understanding failure modes in isolators (Rev. A) May 10, 2018

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
$49.00
Description

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.

Features
  • High speed, robust EMC isolated CAN
  • Wide supply & level translation range: 2.25 to 5.5 V
  • High signaling rate: CAN FD up to 5 Mbps
  • Isolation barrier life > 25 years
  • Standard footprint available for choke and TVS on board
EVALUATION BOARDS Download
document-generic User guide
$49.00
Description
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.
Features
  • High speed, robust EMC isolated CAN
  • Wide supply & level translation range: 2.25 to 5.5 V
  • High signaling rate: CAN FD up to 5 Mbps
  • Isolation barrier life > 25 years
  • Standard footprint available for choke and TVS on board

Design tools & simulation

SIMULATION MODELS Download
SLLM395.ZIP (84 KB) - IBIS Model

Reference designs

REFERENCE DESIGNS Download
Automotive isolated CAN and power front end reference design
TIDA-020019 — This reference design demonstrates reinforced isolated CAN communication, which is widely used in automotive environments, in a small footprint. In hybrid and electric vehicles (HEV/EVs), a complete high-voltage network is floating with respect to the chassis ground. Isolation is required for the (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
SOIC (DW) 16 View options
SOIC (DWV) 8 View options

Ordering & quality

Support & training

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