ZHCSEG6F December   2015  – May 2025 TCAN330 , TCAN330G , TCAN332 , TCAN332G , TCAN334 , TCAN334G , TCAN337 , TCAN337G

PRODUCTION DATA  

  1.   1
  2. 1特性
  3. 2应用
  4. 3说明
  5.   Device Options
  6. 4Pin Configuration and Functions
  7. 5Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Switching Characteristics
    7. 5.7 Typical Characteristics
    8. 5.8 Typical Characteristics, TCAN330 Receiver
    9. 5.9 Typical Characteristics, TCAN330 Driver
  8.   Parameter Measurement Information
  9. 6Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 TXD Dominant Timeout (TXD DTO)
      2. 6.3.2 RXD Dominant Timeout (RXD DTO)
      3. 6.3.3 Thermal Shutdown
      4. 6.3.4 Undervoltage Lockout and Unpowered Device
      5. 6.3.5 Fault Pin (TCAN337)
      6. 6.3.6 Floating Pins
      7. 6.3.7 CAN Bus Short Circuit Current Limiting
      8. 6.3.8 ESD Protection
      9. 6.3.9 Digital Inputs and Outputs
    4. 6.4 Device Functional Modes
      1. 6.4.1 CAN Bus States
      2. 6.4.2 Normal Mode
      3. 6.4.3 Silent Mode
      4. 6.4.4 Standby Mode with Wake
      5. 6.4.5 Bus Wake via RXD Request (BWRR) in Standby Mode
      6. 6.4.6 Shutdown Mode
      7. 6.4.7 Driver and Receiver Function Tables
  10. 7Application Information Disclaimer
    1. 7.1 Application Information
      1. 7.1.1 Bus Loading, Length and Number of Nodes
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
        1. 7.2.1.1 CAN Termination
      2. 7.2.2 Detailed Design Procedure
      3. 7.2.3 Application Curves
    3. 7.3 System Examples
      1. 7.3.1 ISO11898 Compliance of TCAN33x Family of 3.3V CAN Transceivers Introduction
      2. 7.3.2 Differential Signal
      3. 7.3.3 Common-Mode Signal and EMC Performance
    4. 7.4 Power Supply Recommendations
    5. 7.5 Layout
      1. 7.5.1 Layout Guidelines
      2. 7.5.2 Layout Example
  11.   Device and Documentation Support
    1. 8.1 接收文档更新通知
    2. 8.2 支持资源
    3. 8.3 商标
    4. 8.4 静电放电警告
    5. 8.5 术语表
  12. 8Revision History
  13. 9Mechanical, Packaging, and Orderable Information

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7.3.2 Differential Signal

CAN is a differential bus where complementary signals are sent over two wires and the voltage difference between the two wires defines the logical state of the bus. The differential CAN receiver monitors this voltage difference and outputs the bus state with a single ended logic level output signal.

TCAN330 TCAN332 TCAN334 TCAN337 TCAN330G TCAN332G TCAN334G TCAN337G Typical Differential Output WaveformFigure 7-6 Typical Differential Output Waveform

The CAN driver creates the differential voltage between CANH and CANL in the dominant state. The dominant differential output of the TCAN33x is greater than 1.5V and less than 3V across a 60Ω load as defined by the ISO11898 standard. These are the same limiting values for 5V supplied CAN transceivers. The bus termination resistors drive the recessive bus state and not the CAN driver.

A CAN receiver is required to output a recessive state when less than 500 mV of differential voltage exists on the bus, and a dominant state when more than 900mV of differential voltage exists on the bus. The CAN receiver must do this with common-mode input voltages from –2V to 7V. The TCAN33x family receivers meet these same input specifications as 5V supplied receivers.