SLVSM19 July   2026 TCAN942H-Q1

ADVANCE INFORMATION  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison
  6. 5 Pin Configuration and Functions
  7. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 System-Level Transient and 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
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Detailed Pin Description
      1. 7.3.1 TXD
      2. 7.3.2 GND
      3. 7.3.3 VCC
      4. 7.3.4 RXD
      5. 7.3.5 VIO (only for TCAN942HV-Q1)
      6. 7.3.6 CANH and CANL
      7. 7.3.7 STB (Standby)
    4. 7.4 Feature Description
      1. 7.4.1 CAN Bus States
      2. 7.4.2 TXD Dominant Timeout (DTO)
      3. 7.4.3 CAN Bus Short-Circuit Tolerance
      4. 7.4.4 Thermal Shutdown (TSD)
      5. 7.4.5 Undervoltage Lockout
      6. 7.4.6 Unpowered Device
      7. 7.4.7 Floating Pins
    5. 7.5 Device Functional Modes
      1. 7.5.1 Operating Modes
      2. 7.5.2 Normal Mode
      3. 7.5.3 Standby Mode
        1. 7.5.3.1 Remote Wake Request Using Wake-Up Pattern (WUP) in Standby Mode
      4. 7.5.4 Driver and Receiver Function
  9. 8 Device and Documentation Support
    1. 8.1 Receiving Notification of Documentation Updates
    2. 8.2 Support Resources
    3. 8.3 Trademarks
    4. 8.4 Electrostatic Discharge Caution
    5. 8.5 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

3 Description

The TCAN942H-Q1 is a Controller Area Network (CAN) transceiver that meets the physical layer requirements of ISO 11898-2:2026 for CAN FD applications up to 8Mbps along with SAE J2284-1 through SAE J2284-5.

This family of transceivers has enhanced protection capability for system-level CAN short-to-battery and ECU loss-of-GND scenarios in 48V battery automotive settings, including for implementations using common-mode chokes. Additionally, these transceivers have certified electromagnetic compatibility (EMC) operation, making it an excellent choice for CAN CC and CAN FD networks in EMC-sensitive settings across all operation speeds. It is pin-compatible with 8-pin CAN FD and CAN SIC transceivers such as TCAN1044A(V)-Q1 and/or TCAN1472(V)-Q1.

The TCAN942HV-Q1 variant includes internal logic voltage translation using the VIO pin, allowing the transceiver to work with either 3.3V or 5V controller logic levels. These devices also support low-power standby mode with remote wake-up via the CAN bus, compliant with the wake-up pattern (WUP) defined in ISO 11898-2:2024. The device family also includes many protection features such as undervoltage detection, thermal shutdown (TSD), driver dominant timeout (TXD DTO), and transient overvoltage protection on the CAN pins.

Package Information
PART NUMBERPACKAGE(1)PACKAGE SIZE(2)
TCAN942H-Q1VSON (DRB)3mm × 3mm
SOIC (D)4.9mm × 6mm
(1) For all available packages, see Section 10.
(2) The package size (length × width) is a nominal value and includes pins, where applicable.
TCAN942H-Q1 Simplified Block DiagramSimplified Block Diagram