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2.75kV, 3.5kV, and 5kV Isolated CAN Transceivers

Isolated CAN Transceivers with Fault Protection Enable Robust Communications

Product Details

The MAX14878–MAX14880 family of high-speed transceivers improve communication and safety by integrating galvanic isolation between the CAN protocol controller side of the device and the physical wires of the network (CAN) bus. Isolation improves communication by breaking ground loops and reduces noise where there are large differences in ground potential between ports. The MAX14879 provides up to 2750VRMS (60s) of galvanic isolation, while the MAX14878/MAX14880 provide up to 5000VRMS (60s) of galvanic isolation in 8-pin and 16-pin SOIC packages.

All transceivers operate up to the maximum high-speed CAN data rate of 1Mbps. The MAX14879/MAX14880 feature an integrated standby input (STB) on the isolated side of the transceiver to disable the driver and place the transceiver in a low-power standby mode. The MAX14878 does not include the standby input.

The MAX14878–MAX14880 transceivers feature integrated protection for robust communication. The receiver input common-mode range is ±25V, exceeding the ISO 11898 specification of -2V to +7V, and are fault tolerant up to ±54V. Driver outputs/receiver inputs are also protected from ±15kV electrostatic discharge (ESD) to GNDB on the bus side, as specified by the Human Body Model (HBM).

Interfacing with CAN protocol controllers is simplified by the wide 1.71V to 5.5V supply voltage range (VDDA) on the controller side of the device. This supply voltage sets the interface logic levels between the transceiver and controller. The supply voltage range for the CAN bus side of the device is 4.5V to 5.5V (VDDB).

The MAX14878–MAX14880 are available in a wide-body 16-pin SOIC package with 8mm of creepage and clearance. The MAX14878 is also available in 8-pin wide-body SOIC packages with 5mm (MAX14878) and 8mm (MAX14878W) creepage. All devices operate over the -40°C to +125°C temperature range.

Key Features

  • Integrated Protection for Robust Communication
    • 2.75kVRMS, 3.5kVRMS, or 5kVRMS Withstand Isolation Voltage for 60s (Galvanic Isolation)
    • ±25V Receiver Input Common-Mode Range
    • ±54V Fault Protection on Receiver Inputs
  • High-Performance Transceiver Enables Flexible Designs
    • Wide 1.71V to 5.5V Supply for the CAN Controller Interface
    • Available 16-pin and 8-pin SOIC Package Pin Configurations
    • Data Rates up to 1Mbps (Max)
    • Dominant Timeout Protection
  • Safety Regulatory Approvals
    • UL According to UL1577 (Basic Insulation) (16-Pin Package Devices Only)

Applications/Uses

  • Building Automation
  • HVAC
  • Industrial Controls
  • Switching Gear
Parametric specs for Controller Area Network Transceivers (CAN TxRx)
VSUPPLY (V) 5
Fault Protect. (±V) 54
ESD Protect. (±kV) 15
Common Mode Range (V) -25 to +25
Package/Pins SOIC HYBRID (W)/16
Budgetary
Price (See Notes)
$3.05 @1k
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Simplified Block Diagram

MAX14878, MAX14879, MAX14880: Simplified Block Diagram MAX14878, MAX14879, MAX14880: Simplified Block Diagram Zoom icon

Technical Docs

Design & Development

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Description

The MAX14880 evaluation kit (EV kit) is a fully assembled and tested PCB that demonstrates the functionality of the MAX14880 isolated CAN transceiver. The EV kit operates from a single 3.3V supply and features an on-board isolated power supply to power the secondary side of the circuit.

The MAX14880EVKIT may also be used to evaluate the MAX14878 and the MAX14879.

View Details

Features

  • Operates from a Single 3.3V Supply
  • Terminal Block Connectors for Easy RS-485/RS-422 Evaluation
  • 5000VRMS Isolation for 60s
  • Fully Assembled and Tested

Description

The MAX14878EVKIT# evaluation kit (EV kit) is a fully assembled and tested PCB that demonstrates the functionality of the MAX14878AWA+ isolated CAN transceiver. The EV kit operates from a single 3.3V supply and features an on-board isolated power supply to power the secondary side of the circuit.

View Details

Features

  • Operates from a Single 3.3V Supply
  • Terminal Block Connector for Easy CAN Evaluation
  • 3500VRMS Isolation for 60s
  • Fully Assembled and Tested

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SIMULATION MODELS

MAX14880 IBIS Model

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Parameters

Parametric specs for Controller Area Network Transceivers (CAN TxRx)
VSUPPLY (V) 5
Fault Protect. (±V) 54
ESD Protect. (±kV) 15
Common Mode Range (V) -25 to +25
Package/Pins SOIC HYBRID (W)/16
Budgetary
Price (See Notes)
$3.05 @1k

Key Features

  • Integrated Protection for Robust Communication
    • 2.75kVRMS, 3.5kVRMS, or 5kVRMS Withstand Isolation Voltage for 60s (Galvanic Isolation)
    • ±25V Receiver Input Common-Mode Range
    • ±54V Fault Protection on Receiver Inputs
  • High-Performance Transceiver Enables Flexible Designs
    • Wide 1.71V to 5.5V Supply for the CAN Controller Interface
    • Available 16-pin and 8-pin SOIC Package Pin Configurations
    • Data Rates up to 1Mbps (Max)
    • Dominant Timeout Protection
  • Safety Regulatory Approvals
    • UL According to UL1577 (Basic Insulation) (16-Pin Package Devices Only)

Applications/Uses

  • Building Automation
  • HVAC
  • Industrial Controls
  • Switching Gear

Description

The MAX14878–MAX14880 family of high-speed transceivers improve communication and safety by integrating galvanic isolation between the CAN protocol controller side of the device and the physical wires of the network (CAN) bus. Isolation improves communication by breaking ground loops and reduces noise where there are large differences in ground potential between ports. The MAX14879 provides up to 2750VRMS (60s) of galvanic isolation, while the MAX14878/MAX14880 provide up to 5000VRMS (60s) of galvanic isolation in 8-pin and 16-pin SOIC packages.

All transceivers operate up to the maximum high-speed CAN data rate of 1Mbps. The MAX14879/MAX14880 feature an integrated standby input (STB) on the isolated side of the transceiver to disable the driver and place the transceiver in a low-power standby mode. The MAX14878 does not include the standby input.

The MAX14878–MAX14880 transceivers feature integrated protection for robust communication. The receiver input common-mode range is ±25V, exceeding the ISO 11898 specification of -2V to +7V, and are fault tolerant up to ±54V. Driver outputs/receiver inputs are also protected from ±15kV electrostatic discharge (ESD) to GNDB on the bus side, as specified by the Human Body Model (HBM).

Interfacing with CAN protocol controllers is simplified by the wide 1.71V to 5.5V supply voltage range (VDDA) on the controller side of the device. This supply voltage sets the interface logic levels between the transceiver and controller. The supply voltage range for the CAN bus side of the device is 4.5V to 5.5V (VDDB).

The MAX14878–MAX14880 are available in a wide-body 16-pin SOIC package with 8mm of creepage and clearance. The MAX14878 is also available in 8-pin wide-body SOIC packages with 5mm (MAX14878) and 8mm (MAX14878W) creepage. All devices operate over the -40°C to +125°C temperature range.

Simplified Block Diagram

MAX14878, MAX14879, MAX14880: Simplified Block Diagram MAX14878, MAX14879, MAX14880: Simplified Block Diagram Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal.