MAX14882

5kVRMS Isolated CAN Transceiver with Integrated Transformer Driver

Robust 5kVRMS Isolated CAN Transceiver with Integrated Transformer Driver and Fault Protection


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Description

The MAX14882 isolated high-speed CAN transceiver improves communication and safety by integrating galvanic isolation between the CAN-protocol controller-side (TDX, RXD) of the device and the physical wires of the CAN network (CANH, CANL) cable-side/bus-side of the transceiver. Isolation improves communication by breaking ground loops and reduces noise where large differences in ground potentials exists between ports. The MAX14882 provides up to 5000VRMS (60s) of galvanic isolation and a continuous working voltage of up to 848VRMS, while operating at the maximum high-speed CAN data rate of 1Mbps.

The MAX14882 features additional integrated protection for robust communication. The ±25V receiver input common-mode range exceeds the ISO 11898 specification requirement of -2V to +7V. Additionally, the CANH and CANL IOs are fault tolerant up to ±54V and are protected from electrostatic discharge (ESD) up to ±15kV to GNDB on the bus-side, as specified by the Human Body Model (HBM).

Interfacing with CAN-protocol controllers is simplified by the wide 3.0V to 5.5V supply voltage range (VDDA) on the controller-side of the device. The supply voltage range for the CAN bus-side of the device is 4.5V to 5.5V (VDDB). An integrated transformer driver and LDO can be used, with an external transformer, to generate the isolated supply for VDDB.

Field installation and troubleshooting are simplified by the polarity select (POL) input. POL swaps the functions of the CANH and CANL IOs, allowing for simple software correction of cross-wired bus cables in the field.

The MAX14882 operates over the -40°C to +125°C temperature range and is available in a 16-pin wide SOIC (W SOIC) package with 8mm of creepage and clearance.
MAX14882: Simplified Block Diagram MAX14882:Simplified Block Diagram Enlarge+

Key Features

  • Integrated Protection for More Robust Communication
    • 5kVRMS Withstand Galvanic Isolation (60s)
    • ±25V Common Mode Range
    • ±54V Fault Protection
    • ±15kV ESD (HBM) Protection on Driver Outputs/Receiver Inputs
  • High-Performance Transceiver Enables Flexible Designs
    • Wide 3.0V to 5.5V Supply Voltage Range for CAN Controller Interface
    • Field Bus Polarity Control (POL)
    • Integrated Transformer Driver for Power Transfer to Bus-Side
    • Integrated LDO for Powering CAN Bus-Side
  • Safety Regulatory Approvals (Pending)
    • UL1577 (Basic Insulation)
    • cUL According to CSA Bulletin 5A

Applications/Uses

  • Building Automation
  • HVAC
  • Industrial Controls
  • Switching Gear
Part NumberICC (Dominant Mode)
(mA)
Fault Protect.
(±V)
VSUPPLY
(V)
Package/PinsBudgetary
Price
maxSee Notes
MAX14882 4.554
3.3
5
(W)/16
$3.35 @1k
See All Controller Area Network (CAN) Transceivers (24)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.


MAX14882EVKIT: Evaluation Kit for the MAX14882

Quality and Environmental Data

Request Reliability Report for: MAX14882 
Lead-Free Package Tin (Sn) Whisker Reports

Tools & Models

  • MAX14882 IBIS Model
  • CAD Symbols and Footprints

  • MAX14882AWE+
  • MAX14882AWE+T
  • Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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