Texas Instruments TCAN844-Q1 Automotive CAN FD Transceiver

Texas Instruments TCAN844-Q1 Automotive CAN FD Transceiver is a high-performance, fault-protected Controller Area Network (CAN) FD transceiver designed for automotive and industrial applications. This transceiver complies with the ISO 11898-2:2024 high-speed CAN physical layer standard and supports both classical CAN and CAN FD communication protocols, with data rates up to 5Mbps. The TCAN844-Q1 transceiver supports I/O voltage ranges from 2.9V to 5.25V, making it compatible with a wide range of microcontrollers. This transceiver features ±40V bus fault protection and ±12kV ESD protection. The TCAN844-Q1 device is AEC-Q100 qualified for automotive applications. Typical applications include body control modules, automotive gateway, Advanced Driver Assistance System (ADAS), and infotainment.

The TCAN844-Q1 transceiver operates in both normal and low-power standby modes, with remote wake-up capability via CAN bus. The protection features include Thermal-Shutdown (TSD), TXD-Dominant Time-Out (DTO), supply undervoltage detection, and ±40V bus fault protection. This device is available in compact SOIC-8, VSON-8, and SOT-23 package options.

Features

AEC-Q100 qualified for automotive applications:
- ±12KV for CANH and CANL pins as per AEC Q100-002 Human Body Model (HBM) ESD protection
- ±500V as per AEC Q100-011 Charged-Device Model (CDM) ESD protection
- ±8KV (unpowered) IEC 61000-4-2 contact discharge
Compatible with ISO 11898-2:2024 physical layer standard
Functional safety-capable:
- Documentation available to aid in functional safety system design
Support of classical CAN and optimized CAN FD performance at 2Mbps and 5Mbps
- Short and symmetrical propagation delays for enhanced timing margin
TCAN844V-Q1 I/O voltage range supports 2.9V to 5.25V
Support for 12V battery applications
±12V receiver common mode input voltage
Protection features:
- ±40V Bus fault protection
- Undervoltage protection
- TXD-Dominant Time-Out (DTO)
  - Data rates down to 9.2kbps
- Thermal-Shutdown Protection (TSD)

Operating modes:
- Normal mode
- Low power standby mode supporting remote wake-up request
Optimized behavior when unpowered:
- Bus and logic pins are high impedance (no load to the operating bus or application)
- Hot-plug capable: power up/down glitch-free operation on bus and RXD output
8-pin SOIC, small footprint SOT-23, and leadless VSON-8 package with improved Automated Optical Inspection (AOI) capability