SLLSF80B October   2019  – March 2022 TCAN1144-Q1 , TCAN1145-Q1 , TCAN1146-Q1

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Description continued
  6. 6 Device Comparison Table
  7. 7 Pin Configuration and Functions
  8. 8 Specifications
    1. 8.1  Absolute Maximum Ratings
    2. 8.2  ESD Ratings
    3. 8.3  ESD Ratings
    4. 8.4  Recommended Operating Conditions
    5. 8.5  Thermal Information
    6. 8.6  Supply Characteristics
    7. 8.7  Electrical Characteristics
    8. 8.8  Timing Requirements
    9. 8.9  Switching Characteristics
    10. 8.10 Typical Characteristics
  9. 9 Parameter Measurement Information
  10. 10Detailed Description
    1. 10.1 Overview
    2. 10.2 Functional Block Diagram
    3. 10.3 Feature Description
      1. 10.3.1  VSUP Pin
      2. 10.3.2  VIO Pin
      3. 10.3.3  VCC Pin
      4. 10.3.4  GND
      5. 10.3.5  INH/LIMP Pin
      6. 10.3.6  WAKE Pin
      7. 10.3.7  TXD Pin
      8. 10.3.8  RXD Pin
      9. 10.3.9  SDO/nINT Interrupt Pin
      10. 10.3.10 nCS Pin
      11. 10.3.11 SCLK
      12. 10.3.12 SDI
      13. 10.3.13 CANH and CANL Bus Pins
    4. 10.4 Device Functional Modes
      1. 10.4.1 Normal Mode
      2. 10.4.2 Standby Mode
      3. 10.4.3 Listen Only Mode
      4. 10.4.4 Sleep Mode
        1. 10.4.4.1 Bus Wake via RXD Request (BWRR) in Sleep Mode
        2. 10.4.4.2 Local Wake Up (LWU) via WAKE Input Terminal
      5. 10.4.5 Selective Wake-up
        1. 10.4.5.1 Selective Wake Mode (TCAN1145-Q1 and TCAN1146-Q1)
        2. 10.4.5.2 Frame Detection (TCAN1145-Q1 and TCAN1146-Q1)
        3. 10.4.5.3 Wake-Up Frame (WUF) Validation (TCAN1145-Q1 and TCAN1146-Q1)
        4. 10.4.5.4 WUF ID Validation (TCAN1145-Q1 and TCAN1146-Q1)
        5. 10.4.5.5 WUF DLC Validation (TCAN1145-Q1 and TCAN1146-Q1)
        6. 10.4.5.6 WUF Data Validation (TCAN1145-Q1 and TCAN1146-Q1)
        7. 10.4.5.7 Frame error counter (TCAN1145-Q1 and TCAN1146-Q1)
        8. 10.4.5.8 CAN FD Frame Tolerance (TCAN1145-Q1 and TCAN1146-Q1)
      6. 10.4.6 Fail-safe Features
        1. 10.4.6.1 Sleep Mode via Sleep Wake Error
        2. 10.4.6.2 Fail-safe Mode
      7. 10.4.7 Protection Features
        1. 10.4.7.1 Driver and Receiver Function
        2. 10.4.7.2 Floating Terminals
        3. 10.4.7.3 TXD Dominant Time Out (DTO)
        4. 10.4.7.4 CAN Bus Short Circuit Current Limiting
        5. 10.4.7.5 Thermal Shutdown
        6. 10.4.7.6 Under-Voltage Lockout (UVLO) and Unpowered Device
          1. 10.4.7.6.1 UVSUP, UVCC
          2. 10.4.7.6.2 UVIO
            1. 10.4.7.6.2.1 Fault Behavior
        7. 10.4.7.7 Watchdog (TCAN1144-Q1 and TCAN1146-Q1)
          1. 10.4.7.7.1 Watchdog Error Counter
          2. 10.4.7.7.2 Watchdog SPI Control Programming
          3. 10.4.7.7.3 Watchdog Timing
          4. 10.4.7.7.4 Question and Answer Watchdog
            1. 10.4.7.7.4.1 WD Question and Answer Basic information
            2. 10.4.7.7.4.2 Question and Answer Register and Settings
            3. 10.4.7.7.4.3 WD Question and Answer Value Generation
          5. 10.4.7.7.5 Question and Answer WD Example
            1. 10.4.7.7.5.1 Example configuration for desired behavior
            2. 10.4.7.7.5.2 Example of performing a question and answer sequence
      8. 10.4.8 Bus Fault Detection and Communication (TCAN1144-Q1 and TCAN1146-Q1)
      9. 10.4.9 SPI Communication
        1. 10.4.9.1 Chip Select Not (nCS):
        2. 10.4.9.2 SPI Clock Input (SCLK):
        3. 10.4.9.3 SPI Serial Data Input (SDI):
        4. 10.4.9.4 SPI Serial Data Output (SDO):
    5. 10.5 Programming
    6. 10.6 Register Maps
      1. 10.6.1  DEVICE_ID_y Register (Address = 0h + formula) [reset = value]
      2. 10.6.2  REV_ID_MAJOR Register (Address = 8h) [reset = 01h]
      3. 10.6.3  REV_ID_MINOR Register (Address = 9h) [reset = 00h]
      4. 10.6.4  SPI_RSVD_x Register (Address = Ah + formula) [reset = 00h]
      5. 10.6.5  Scratch_Pad_SPI Register (Address = Fh) [reset = 00h]
      6. 10.6.6  MODE_CNTRL Register (Address = 10h) [reset = 04h]
      7. 10.6.7  WAKE_PIN_CONFIG Register (Address = 11h) [reset = 4h]
      8. 10.6.8  PIN_CONFIG Register (Address = 12h) [reset = 00h]
      9. 10.6.9  WD_CONFIG_1 Register (Address = 13h) [reset = 15h]
      10. 10.6.10 WD_CONFIG_2 Register (Address = 14h) [reset = 02h]
      11. 10.6.11 WD_INPUT_TRIG Register (Address = 15h) [reset = 00h]
      12. 10.6.12 WD_RST_PULSE Register (Address = 16h) [reset = 07h]
      13. 10.6.13 FSM_CONFIG Register (Address = 17h) [reset = 00h]
      14. 10.6.14 FSM_CNTR Register (Address = 18h) [reset = 00h]
      15. 10.6.15 DEVICE_RST Register (Address = 19h) [reset = 00h]
      16. 10.6.16 DEVICE_CONFIG1 Register (Address = 1Ah) [reset = 00h]
      17. 10.6.17 DEVICE_CONFIG2 Register (Address = 1Bh) [reset = 0h]
      18. 10.6.18 SWE_DIS Register (Address 1Ch) [reset = 04h]
      19. 10.6.19 SDO_CONFIG Register (Address = 29h) [reset = 00h]
      20. 10.6.20 WD_QA_CONFIG Register (Address = 2Dh) [reset = 00h]
      21. 10.6.21 WD_QA_ANSWER Register (Address = 2Eh) [reset = 00h]
      22. 10.6.22 WD_QA_QUESTION Register (Address = 2Fh) [reset = 00h]
      23. 10.6.23 SW_ID1 Register (Address = 30h) [reset = 00h]
      24. 10.6.24 SW_ID2 Register (Address = 31h) [reset = 00h]
      25. 10.6.25 SW_ID3 Register (Address = 32h) [reset = 00h]
      26. 10.6.26 SW_ID4 Register (Address = 33h) [reset = 00h]
      27. 10.6.27 SW_ID_MASK1 Register (Address = 34h) [reset = 00h]
      28. 10.6.28 SW_ID_MASK2 Register (Address = 35h) [reset = 00h]
      29. 10.6.29 SW_ID_MASK3 Register (Address = 36h) [reset = 00h]
      30. 10.6.30 SW_ID_MASK4 Register (Address = 37h) [reset = 00h]
      31. 10.6.31 SW_ID_MASK_DLC Register (Address = 38h) [reset = 00h]
      32. 10.6.32 DATA_y Register (Address = 39h + formula) [reset = 00h]
      33. 10.6.33 SW_RSVD_y Register (Address = 41h + formula) [reset = 00h]
      34. 10.6.34 SW_CONFIG_1 Register (Address = 44h) [reset = 50h]
      35. 10.6.35 SW_CONFIG_2 Register (Address = 45h) [reset = 00h]
      36. 10.6.36 SW_CONFIG_3 Register (Address = 46h) [reset = 1Fh]
      37. 10.6.37 SW_CONFIG_4 Register (Address = 47h) [reset = 00h]
      38. 10.6.38 SW_CONFIG_RSVD_y Register (Address = 48h + formula) [reset = 00h]
      39. 10.6.39 INT_GLOBAL Register (Address = 50h) [reset = 00h]
      40. 10.6.40 INT_1 Register (Address = 51h) [reset = 00h]
      41. 10.6.41 INT_2 Register (Address = 52h) [reset = 40h]
      42. 10.6.42 INT_3 Register (Address 53h) [reset = 00h]
      43. 10.6.43 INT_CANBUS Register (Address = 54h) [reset = 00h]
      44. 10.6.44 INT_GLOBAL_ENABLE (Address = 55h) [reset = 00h]
      45. 10.6.45 INT_ENABLE_1 Register (Address = 56h) [reset = FFh]
      46. 10.6.46 INT_ENABLE_2 Register (Address = 57h) [reset = 1Fh]
      47. 10.6.47 INT_ENABLE_3 Register (Address = 58h) [reset = 0h]
      48. 10.6.48 INT_ENABLE_CANBUS Register (Address = 59h) [reset = 7Fh]
      49. 10.6.49 INT_RSVD_y Register (Address = 5Ah + formula) [reset = 00h]
  11. 11Application Information Disclaimer
    1. 11.1 Application Information
      1. 11.1.1 BUS Loading, Length and Number of Nodes
      2. 11.1.2 CAN Termination
        1. 11.1.2.1 Termination
        2. 11.1.2.2 CAN Bus Biasing
    2. 11.2 Typical Application
      1. 11.2.1 Design Requirements
      2. 11.2.2 Detailed Design Procedure
        1. 11.2.2.1 Brownout
      3. 11.2.3 Application Curves
  12. 12Power Supply Recommendations
  13. 13Layout
    1. 13.1 Layout Guidelines
    2. 13.2 Layout Example
  14. 14Device and Documentation Support
    1. 14.1 Documentation Support
      1. 14.1.1 CAN Transceiver Physical Layer Standards:
      2. 14.1.2 EMC Requirements:
      3. 14.1.3 Conformance Test Requirements:
      4. 14.1.4 Related Documentation
    2. 14.2 Receiving Notification of Documentation Updates
    3. 14.3 Support Resources
    4. 14.4 Trademarks
    5. 14.5 Electrostatic Discharge Caution
    6. 14.6 Glossary
  15. 15Mechanical, Packaging, and Orderable Information

8.7 Electrical Characteristics

parameters valid across -40 ℃ ≤ TJ ≤ 150 ℃ (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
CAN DRIVER ELECTRICAL CHARACTERISTICS
VO(D) Bus output voltage (dominant) CANH See Figure 9-4 VTXD = 0 V, RL =50 Ω to 65 Ω, CL = open, RCM = open 2.75 4.5 V
Bus output voltage (dominant) CANL 0.5 2.25 V
VO(R) Bus output voltage (recessive) See Figure 9-1 and Figure 9-4 VTXD = VIO, RL = open (no load), RCM = open 2 2.5 3 V
V(DIFF) Differential voltage –42 42 V
VOD(D) Differential output voltage (dominant) See Figure 9-1 and Figure 9-4, VTXD = 0 V, 50 Ω ≤ RL ≤ 65 Ω, CL = open, RCM = open 1.5 3 V
See Figure 9-1 and Figure 9-4, VTXD = 0 V, 45 Ω ≤ RL ≤ 70 Ω, CL = open, RCM = open 1.4 3 V
See Figure 9-1 and Figure 9-4, VTXD = 0 V, RL = 2.24 kΩ, CL = open, RCM = open 1.5 5 V
VOD(R) Differential output voltage (recessive) See Figure 9-1 and Figure 9-4 , VTXD = VIO, RL = 60 Ω, CL = open, RCM = open –120 12 mV
See Figure 9-1 and Figure 9-4, VTXD = VIO, RL = open (no load), CL = open, RCM = open –50 50 mV
VO(INACT) Bus output voltage on CANH with bus biasing inactive (STBY) See Figure 9-1 and Figure 9-4, VTXD = VIO, RL = open, CL = open, RCM = open –0.1 0.1 V
Bus output voltage on CANL with bus biasing inactive (STBY) –0.1 0.1 V
Bus output voltage on CANH - CANL (recessive) with bus biasing inactive (STBY) –0.2 0.2 V
VSYM Output symmetry (dominant or recessive) (VO(CANH) + VO(CANL))/VCC See Figure 9-1 and Figure 9-4, RL = 60 Ω, CL = open, RCM = open, C1 = 4.7 nF, TXD = 250 kHz, 1 MHz, 2.5 MHz 0.9 1.1 V/V
VSYM_DC Output symmetry (dominant or recessive) (VCC – VO(CANH) – VO(CANL)) with a frequency that corresponds to the highest bit rate for which the HS-PMA implementation is intended, <1 MHz or <2 Mbit/s See Figure 9-1 and Figure 9-4, RL = 60 Ω, CL = open, RCM = open, C1 = 4.7 nF –300 300 mV
IOS_DOM Short-circuit steady-state output current, dominant See Figure 9-1 and Figure 9-8  –3.0 V ≤ VCANH ≤ +18.0 V, CANL = open, VTXD = 0 V –115 mA
 –3.0 V ≤ VCANL ≤ +18.0 V, CANH = open, VTXD = 0 V 115 mA
IOS_REC Short-circuit steady-state output current, recessive. See Figure 9-1 and Figure 9-8  –27 V ≤ VBUS ≤ +42 V, VBUS = CANH = CANL –5 5 mA
CAN RECEIVER ELECTRICAL CHARACTERISTICS
VITDOM Receiver dominant state differential input voltage range, bus biasing active –12.0 V ≤ VCANL ≤ +12.0 V
–12.0 V ≤ VCANH ≤ +12.0 V; See Figure 9-5 and Table 10-6  		 0.9 8 V
VITREC Receiver recessive state differential input voltage range, bus biasing active –3 0.5 V
VHYS Hysteresis voltage for input-threshold, normal and selective wake modes 135 mV
VDIFF_DOM Receiver dominant state differential input voltage range, bus biasing in-active –12.0 V ≤ VCANL ≤ +12.0 V
–12.0 V ≤ VCANH ≤ +12.0 V; See Figure 9-5 and Table 10-6		 1.15 8 V
VDIFF_REC Receiver recessive state differential input voltage range, bus biasing in-active –3 0.4 V
VCM_NORM Common mode range: normal –12 12 V
VCM_STBY Common mode range: standby mode –12 12 V
IIOFF(LKG) Power-off (unpowered) bus input leakage current CANH = CANL = 5 V, VCC = VIO = Vsup to GND via 0 Ω and 47 kΩ resistor 5 µA
CI Input capacitance to ground (CANH or CANL) (1) 20 pF
CID Differential input capacitance (1) 10 pF
RID Differential input resistance VTXD = VIO, normal mode: –2.0 V ≤ VCANH ≤ +7.0 V;
–2.0 V ≤ VCANL ≤ +7.0 V		 12 100 kΩ
RIN Single ended Input resistance (CANH or CANL) –2.0 V ≤ VCANH ≤ +7.0 V
–2.0 V ≤ VCANL ≤ +7.0 V		 6 50 kΩ
RIN(M) Input resistance matching: [1 – (RIN(CANH) / RIN(CANL))] × 100% VCANH = VCANL = 5.0 V –1 1 %
INH OUTPUT TERMINAL (HIGH VOLTAGE OUTPUT)
ΔVH High-level voltage drop from VSUP to INH  IINH = –6 mA 0.5 1 V
Rpd Pull-down resistor Sleep Mode 7 10 13 MΩ
WAKE INPUT TERMINAL
VIH High-level input voltage Selective wake-up or standby mode, WAKE pin enabled 4 V
VIL Low-level input voltage Selective wake-up or standby mode, WAKE pin enabled 2 V
IIL Low-level input current WAKE = 1 V 1 2 µA
SDI, SCK, nCS, TXD INPUT TERMINALS
VIH High-level input voltage 0.7 VIO
VIL Low-level input voltage 0.3 VIO
IIH High-level input leakage current 1.71 V ≤ VIO ≤ 5.5 V –1 1 µA
IIL Low-level input leakage current Inputs = 0 V, 1.71 V ≤ VIO ≤ 5.5 V –30 –2 µA
IILnCS Low-level input leakage current for nCS Inputs = 0 V, 1.71 V ≤ VIO ≤ 5.5 V –50 –2 µA
CIN Input capacitance at 20 MHz 4 15 pF
ILKG(OFF) Unpowered leakage current Inputs = 5.5 V, VIO = VSUP = 0 V –1 0 1 µA
Rpu Pull-up resistor 250 350 450 kΩ
RXD, SDO OUTPUT TERMINALS
VOH High level output voltage IOH = -2 mA 0.8 VIO
VOL Low level output voltage IOL = 2 mA 0.2 VIO
ILKG(OFF) Unpowered leakage current - SDO pin VnCS = VIO; VO = 0 V to VIO –5 5 µA
RRXD(PU) RXD pin pull-up resistance Active during UVSUP and POR conditions and when in Sleep mode 40 60 80 kΩ
ILKG(RXD) RXD current when VIO present and RRXD(PU) enabled VRXD = VIO; VO = 0 V to VIO –1 1 µA
VRXD = GND; Active during UVSUP and POR conditions and when in Sleep mode –140 –20 µA
(1) Specified by design