SLLSFY0A September   2025  – December 2025 TCAN843-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 Specifications
    4. 5.4  Recommended Operating Conditions
    5. 5.5  Thermal Information
    6. 5.6  Power Dissipation Ratings
    7. 5.7  Power Supply Characteristics
    8. 5.8  Electrical Characteristics
    9. 5.9  Timing Requirements
    10. 5.10 Switching Characteristics
    11. 5.11 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 Supply Pins
        1. 7.3.1.1 VSUP Pin
        2. 7.3.1.2 VCC Pin
        3. 7.3.1.3 VIO Pin
      2. 7.3.2 Digital Inputs and Outputs
        1. 7.3.2.1 TXD Pin
        2. 7.3.2.2 RXD Pin
        3. 7.3.2.3 nFAULT Pin
        4. 7.3.2.4 EN Pin
        5. 7.3.2.5 nSTB Pin
        6. 7.3.2.6 NC Pin
      3. 7.3.3 GND
      4. 7.3.4 INH Pin
      5. 7.3.5 WAKE Pin
      6. 7.3.6 CAN Bus Pins
      7. 7.3.7 Faults
        1. 7.3.7.1 Internal and External Fault Indicators
          1. 7.3.7.1.1 Power-Up (PWRON Flag)
          2. 7.3.7.1.2 Wake-Up Request (WAKERQ Flag)
          3. 7.3.7.1.3 Undervoltage Faults
            1. 7.3.7.1.3.1 Undervoltage on VSUP
            2. 7.3.7.1.3.2 Undervoltage on VCC
            3. 7.3.7.1.3.3 Undervoltage on VIO
          4. 7.3.7.1.4 TXD Dominant State Timeout (TXDDTO Flag)
          5. 7.3.7.1.5 TXD Shorted to RXD Fault (TXDRXD Flag)
          6. 7.3.7.1.6 CAN Bus Dominant Fault (CANDOM Flag)
      8. 7.3.8 Local Faults
        1. 7.3.8.1 TXD Dominant Timeout (TXD DTO)
        2. 7.3.8.2 Thermal Shutdown (TSD)
        3. 7.3.8.3 Undervoltage Lockout (UVLO)
        4. 7.3.8.4 Unpowered Devices
        5. 7.3.8.5 Floating Terminals
        6. 7.3.8.6 CAN Bus Short-Circuit Current Limiting
    4. 7.4 Device Functional Modes
      1. 7.4.1 Operating Mode Description
        1. 7.4.1.1 Normal Mode
        2. 7.4.1.2 Silent Mode
        3. 7.4.1.3 Standby Mode
        4. 7.4.1.4 Go-To-Sleep Mode
        5. 7.4.1.5 Sleep Mode
          1. 7.4.1.5.1 Remote Wake Request via Wake-Up Pattern (WUP)
          2. 7.4.1.5.2 Local Wake-Up (LWU) by WAKE Input Terminal
      2. 7.4.2 CAN Transceiver
        1. 7.4.2.1 CAN Transceiver Operation
          1. 7.4.2.1.1 Driver and Receiver Function Tables
          2. 7.4.2.1.2 CAN Bus States
  9. 8 Application Information Disclaimer
    1. 8.1 Application Information
      1. 8.1.1 Typical Application
      2. 8.1.2 Design Requirements
        1. 8.1.2.1 Bus Loading, Length and Number of Nodes
      3. 8.1.3 Detailed Design Procedure
        1. 8.1.3.1 CAN Termination
      4. 8.1.4 Application Curves
    2. 8.2 Power Supply Recommendations
    3. 8.3 Layout
      1. 8.3.1 Layout Guidelines
      2. 8.3.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Documentation Support
      1. 9.1.1 CAN Transceiver Physical Layer Standards:
    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

5.7 Power Supply Characteristics

Over recommended operating conditions with TJ = -40°C to 150°C, unless otherwise noted. All typical values are taken at 25°C, VSUP = 12V, VIO = 3.3V, VCC = 5V and RL = 60Ω
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
Supply Voltage and Current Characteristics
ISUP_NORMAL Supply current
CAN active		 Normal mode, silent mode, go-to-sleep mode(1) 140 µA
ISUP_STBY Supply current Standby mode, TJ = –40°C to 85°C 60 µA
ISUP_SLEEP Supply current Sleep mode, TJ = –40°C to 85°C 18 30 µA
UVSUP(R) Undervoltage VSUP threshold rising 3.9 4.3 V
UVSUP(F) Undervoltage VSUP threshold falling 3.6 4.1 V
ICC_NORMAL Supply current
CAN active: dominant		 Normal mode
TXD = 0V, RL = 60Ω, CL = open		 70 mA
VCC supply current normal mode
Dominant with bus fault		 Normal mode
TXD = 0V, RL = open, CL = open, CANH = CANL = ±25V		 130 mA
Supply current
CAN active: recessive		 Normal mode
TXD = VIO, RL = 60Ω, CL = open		 7.5 mA
ICC_STBY Supply current, Standby mode Standby mode TJ = –40°C to 85°C
EN = nSTB = 0V		 3.5 µA
ICC_SILENT Supply current, Silent mode Silent and go-to-sleep mode(1)
TXD = nSTB = VIO, RL = 60Ω, CL = open		 4 mA
ICC_SLEEP Supply current, Sleep mode Sleep mode TJ = –40°C to 85°C
EN = 0V or VIO, nSTB = 0V		 3.2 µA
UVCC(R) Undervoltage VCC threshold rising 3.9 4 4.3 V
UVCC(F) Undervoltage VCC threshold falling 3.7 3.9 4.2 V
VHYS(UVCC) Hysteresis voltage on UVCC 50 300 mV
IIO_NORMAL I/O supply current Normal mode
RXD floating, TXD = 0V		 200 µA
IIO_NORMAL I/O supply current Normal mode, silent mode, or go-to-sleep mode(1)
RXD floating, TXD = VIO		 3 µA
IIO_STBY I/O supply current Standby mode TJ = –40°C to 85°C
RXD floating, TXD = VIO		 3 µA
IIO_SLEEP I/O supply current Sleep mode TJ = –40°C to 85°C
nSTB = 0V		 2.5 µA
UVIO(R) Under voltage VIO threshold rising Ramp up 2.2 2.5 2.8 V
UVIO(F) Under voltage VIO threshold falling Ramp down 2.1 2.4 2.7 V
VHYS(UVIO) Hysteresis voltage on UVIO 40 100 160 mV
(1) Current consumption in go-to-sleep mode is specified by design