ISO1042

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Isolated CAN transceiver with 70-V bus fault protection & flexible data rate

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Product details

Parameters

Rating Catalog Isolation rating (Vrms) 5000 Data rate (Max) (Mbps) 5 Operating temperature range (C) -40 to 125 Supply voltage (V) 4.5 to 5.5, 1.71 to 5.5 Surge voltage capability (Vpk) 10000, 6000 Bus fault voltage (V) -70 to 70 Common mode voltage (V) -30 to 30 ESD HBM (kV) 16 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

  • 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

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Description

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
* Datasheet ISO1042 Isolated CAN Transceiver With 70-V Bus Fault Protection and Flexible Data Rate datasheet (Rev. E) Oct. 28, 2019
Application notes Isolated CAN Reference Design (Rev. E) Jul. 22, 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
More literature TUV certificate for isolation devices (Rev. I) Mar. 14, 2020
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
Technical articles Now that you have isolated your CAN signals, what about power? Jan. 09, 2019
Technical articles 5 ways TI’s tiny devices deliver huge innovations to engineers Nov. 08, 2018
Technical articles Reduce emissions and drive up immunity in your isolated CAN systems Nov. 07, 2018
User guides ISO1042DWV Isolated CAN Transceiver Evaluation Module Jul. 11, 2018
User guides ISO1042DW Isolated CAN Transceiver Evaluation Module (Rev. A) Jul. 09, 2018
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

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Hardware development

EVALUATION BOARDS Download
document-generic User guide
49
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
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
EVALUATION BOARDS Download
Description
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 CAN (...)

Design tools & simulation

SIMULATION MODELS Download
SLLM395.ZIP (84 KB) - IBIS Model
SIMULATION TOOLS Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

Reference designs

REFERENCE DESIGNS Download
Accurate gauging and 50-μA standby current, 13-S, 48-V li-ion battery pack reference design
TIDA-010030 — 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 (...)
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CAD/CAE symbols

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

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