SLLSF17B August   2019  – October 2021 TCAN1044-Q1 , TCAN1044V-Q1

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
    1.     Pin Functions
  6. 6 Specifications
    1. 6.1  Absolute Maximum Ratings
    2. 6.2  ESD Ratings
    3. 6.3  ESD Ratings
    4. 6.4  Recommended Operating Conditions
    5. 6.5  Thermal Characteristics
    6. 6.6  Supply Characteristics
    7. 6.7  Dissipation Ratings
    8. 6.8  Electrical Characteristics
    9. 6.9  Switching Characteristics
    10. 6.10 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. 11Device and Documentation Support
    1. 11.1 Receiving Notification of Documentation Updates
    2. 11.2 Support Resources
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 Glossary

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 TCAN1044-Q1 are CMOS levels with respect to either VCC for 5 V systems or VIO for compatible with MCUs having 1.8 V, 2.5 V, 3.3 V, or 5 V systems.

Table 8-5 Driver Function Table
Device Mode TXD Input(2) Bus Outputs Driven Bus State(2)
CANH CANL
Normal Low High Low Dominant
High or open High impedance High impedance Biased recessive
Standby X High impedance High impedance Biased to ground
(2) X = irrelevant
(2) For bus state and bias see Figure 8-2 and Figure 8-3
Table 8-6 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 8-5
0.4 V < VID < 1.15 V Undefined
VID ≤ 0.4 V Recessive
Any Open (VID ≈ 0 V) Open High