SLLSFG2 December   2019  – December 2019 TCAN1044V

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Simplified Schematic
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
    1.     Pin Functions
  6. 6 Specifications
    1. Table 1. Absolute Maximum Ratings
    2. Table 2. ESD Ratings
    3. Table 3. ESD Ratings
    4. Table 4. Recommended Operating Conditions
    5. Table 5. Thermal Characteristics
    6. Table 6. Supply Characteristics
    7. Table 7. Dissipation Ratings
    8. Table 8. Electrical Characteristics
    9. Table 9. Switching Characteristics
    10. 6.1      Typical Characteristics
  7. 7 Parameter Measurement Information
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Pin Description
        1. 8.3.1.1 TXD
        2. 8.3.1.2 GND
        3. 8.3.1.3 VCC
        4. 8.3.1.4 RXD
        5. 8.3.1.5 VIO
        6. 8.3.1.6 CANH and CANL
        7. 8.3.1.7 STB (Standby)
      2. 8.3.2 CAN Bus States
      3. 8.3.3 TXD Dominant Timeout (DTO)
      4. 8.3.4 CAN Bus Short Circuit Current Limiting
      5. 8.3.5 Thermal Shutdown (TSD)
      6. 8.3.6 Undervoltage Lockout
      7. 8.3.7 Unpowered Device
      8. 8.3.8 Floating pins
    4. 8.4 Device Functional Modes
      1. 8.4.1 Operating Modes
      2. 8.4.2 Normal Mode
      3. 8.4.3 Standby Mode
        1. 8.4.3.1 Remote Wake Request via Wake-Up Pattern (WUP) in Standby Mode
      4. 8.4.4 Driver and Receiver Function
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
        1. 9.2.1.1 CAN Termination
      2. 9.2.2 Detailed Design Procedures
        1. 9.2.2.1 Bus Loading, Length and Number of Nodes
      3. 9.2.3 Application Curves
    3. 9.3 System Examples
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Links
    2. 12.2 Receiving Notification of Documentation Updates
    3. 12.3 Support Resources
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

8.4.4 Driver and Receiver Function

The digital logic input and output levels for the TCAN1044V are CMOS levels with respect to VIO for compatibility with protocol controllers having 1.8 V, 2.5 V, 3.3 V, or 5 V IO levels.

Table 14. Driver Function Table

Device Mode TXD Input(1) Bus Outputs Driven Bus State(2)
CANH CANL
Normal Low High Low Dominant
High or open Hi-Z Hi-Z Biased recessive
Standby X Hi-Z Hi-Z Weak pull-down to ground
(1) X = irrelevant
(2) For bus state and bias see Figure 12

Table 15. Receiver Function Table Normal and Standby Mode

Device Mode CAN Differential Inputs
VID = VCANH – VCANL 		Bus State RXD Pin
Normal VID ≥ 0.9 V Dominant Low
0.5 V < VID < 0.9 V Undefined Undefined
VID ≤ 0.5 V Recessive High
Standby VID ≥ 1.15 V Dominant High
Low if a remote wake event occurred
See Figure 15
0.4 V < VID < 1.15 V Undefined
VID ≤ 0.4 V Recessive
Any Open (VID ≈ 0 V) Open High