SLLSES7D March   2016  – October 2021 TCAN1042H , TCAN1042HG , TCAN1042HGV , TCAN1042HV

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configurations and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 ESD Ratings, Specifications
    4. 7.4 Recommended Operating Conditions
    5. 7.5 Thermal Information
    6. 7.6 Power Rating
    7. 7.7 Electrical Characteristics
    8. 7.8 Switching Characteristics
    9. 7.9 Typical Characteristics
  8. 8 Parameter Measurement Information
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1 TXD Dominant Timeout (DTO)
      2. 9.3.2 Thermal Shutdown (TSD)
      3. 9.3.3 Undervoltage Lockout
      4. 9.3.4 Unpowered Device
      5. 9.3.5 Floating Terminals
      6. 9.3.6 CAN Bus Short Circuit Current Limiting
      7. 9.3.7 Digital Inputs and Outputs
        1. 9.3.7.1 Devices with VCC Only (Devices without the "V" Suffix):
        2. 9.3.7.2 Devices with VIO I/O Level Shifting (Devices with "V" Suffix):
    4. 9.4 Device Functional Modes
      1. 9.4.1 CAN Bus States
      2. 9.4.2 Normal Mode
      3. 9.4.3 Standby Mode
        1. 9.4.3.1 Remote Wake Request via Wake Up Pattern (WUP) in Standby Mode
      4. 9.4.4 Driver and Receiver Function Tables
  10. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Applications
      1. 10.2.1 Design Requirements
        1. 10.2.1.1 Bus Loading, Length and Number of Nodes
      2. 10.2.2 Detailed Design Procedures
        1. 10.2.2.1 CAN Termination
      3. 10.2.3 Application Curves
  11. 11Power Supply Recommendations
  12. 12Device and Documentation Support
    1. 12.1 Receiving Notification of Documentation Updates
    2. 12.2 Support Resources
    3. 12.3 Trademarks
    4. 12.4 Electrostatic Discharge Caution
    5. 12.5 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

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

9.3.3 Undervoltage Lockout

The supply terminals have undervoltage detection that places the device in protected mode. This protects the bus during an undervoltage event on either the VCC or VIO supply terminals.

Table 9-1 Undervoltage Lockout 5 V Only Devices (Devices without the "V" Suffix)
VCCDEVICE STATE(1)BUS OUTPUTRXD
> UVVCCNormalPer TXDMirrors Bus(2)
< UVVCCProtectedHigh ImpedanceHigh Impedance
(1) See the VIT section of the Electrical Characteristics.
(2) Mirrors bus state: low if CAN bus is dominant, high if CAN bus is recessive.
Table 9-2 Undervoltage Lockout I/O Level Shifting Devices (Devices with the "V" Suffix)
VCCVIODEVICE STATEBUS OUTPUTRXD
> UVVCC> UVVIONormalPer TXDMirrors Bus(1)
< UVVCC> UVVIOSTB = High: Standby ModeRecessiveBus Wake RXD Request(2)
STB =Low: Protected ModeHigh ImpedanceHigh (Recessive)
> UVVCC< UVVIOProtectedHigh ImpedanceHigh Impedance
< UVVCC< UVVIOProtectedHigh ImpedanceHigh Impedance
(1) Mirrors bus state: low if CAN bus is dominant, high if CAN bus is recessive.
(2) Refer to Section 9.4.3.1
Note:

After an undervoltage condition is cleared and the supplies have returned to valid levels, the device typically resumes normal operation within 50 µs.