SLLSFX4A February   2025  – February 2025 TCAN857-Q1

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1  Absolute Maximum Ratings
    2. 5.2  ESD Ratings
    3. 5.3  ESD Ratings, IEC Specification
    4. 5.4  Recommended Operating Conditions
    5. 5.5  Thermal Characteristics
    6. 5.6  Power Supply Characteristics
    7. 5.7  Dissipation Ratings
    8. 5.8  Electrical Characteristics
    9. 5.9  Switching Characteristics
    10. 5.10 Typical Characteristics
  7. 6 Parameter Measurement Information
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Pin Description
        1. 7.3.1.1 TXD
        2. 7.3.1.2 GND
        3. 7.3.1.3 VCC
        4. 7.3.1.4 RXD
        5. 7.3.1.5 VIO
        6. 7.3.1.6 CANH and CANL
        7. 7.3.1.7 S (Silent)
      2. 7.3.2 CAN Bus States
      3. 7.3.3 TXD Dominant Timeout (DTO)
      4. 7.3.4 CAN Bus Short-circuit Current Limiting
      5. 7.3.5 Thermal Shutdown (TSD)
      6. 7.3.6 Undervoltage Lockout
      7. 7.3.7 Unpowered Device
      8. 7.3.8 Floating pins
    4. 7.4 Device Functional Modes
      1. 7.4.1 Operating Modes
      2. 7.4.2 Normal Mode
      3. 7.4.3 Silent Mode
      4. 7.4.4 Driver and Receiver Function
  9. 8 Application Information Disclaimer
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
        1. 8.2.1.1 CAN Termination
      2. 8.2.2 Detailed Design Procedures
        1. 8.2.2.1 Bus Loading, Length and Number of Nodes
      3. 8.2.3 System Examples
      4. 8.2.4 Application Curve
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Documentation Support
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

3 Description

The TCAN857-Q1 is a high speed controller area network (CAN) transceiver that meets the physical layer requirements of the ISO 11898-2:2024 high-speed CAN specification. The transceiver is designed for classical CAN and CAN FD networks up to 5 megabits per second (Mbps).

The transceiver supports two modes of operation; normal mode and silent mode. The transceiver also includes many protection and diagnostic features including thermal shutdown (TSD), TXD-dominant timeout (DTO), and bus fault protection up to ±40V. The device has defined fail-safe behavior in supply under-voltage or floating pin scenarios.

The transceiver features an integrated level shifter on the VIO pin which supplies internal logic-level translation for interfacing the transceiver I/Os directly to 3.3V, or 5V logic level. These transceivers are not only available in industry-standard SOIC-8 and VSON-8 packages, but also have a space-saving small footprint SOT-23 package option.

Package Information
PART NUMBERPACKAGE(1)PACKAGE SIZE(2)
TCAN857-Q1SOIC (D)4.9mm x 6mm
VSON (DRB) (8)3mm x 3mm
SOT-23 (DDF) (8)2.9mm x 2.8mm
(1) For more information, see Section 11.
(2) The package size (length × width) is a nominal value and includes pins, where applicable.
Table 3-1 Device Comparison Table
Device NumberLow Voltage I/O Logic Support on Pin 5Pin 8 Mode Selection
TCAN857-Q1NoSilent mode
TCAN857V-Q1YesSilent mode
TCAN857-Q1 Simplified Schematic Simplified Schematic