General description

The TJA1462 is a member of the TJA146x family of transceivers that provide an interface

between a Controller Area Network (CAN) or CAN FD (Flexible Data rate) protocol

controller and the physical two-wire CAN bus. TJA146x transceivers implement the CAN

physical layer as defined in ISO 11898-2:2016 and SAE J2284-1 to SAE J2284-5, and

are fully interoperable with high-speed Classical CAN and CAN FD transceivers.

The TJA1462 includes CAN Signal Improvement Capability (SIC), as defined in

CiA 601-4. CAN signal improvement significantly reduces signal ringing in a network,

allowing reliable CAN FD communication to function in larger topologies. In addition, the

TJA1462 features a much tighter bit timing symmetry performance to enable CAN FD

communication at 5 Mbit/s with a higher number of nodes and stub topologies. CAN FD

operation at 8 Mbit/s and beyond is supported in point-to-point networks.

The TJA1462 is intended as a simple replacement for high-speed Classical CAN and

CAN FD transceivers, such as the TJA1042 or TJA1044GT from NXP. It offers pin

compatibility and is designed to avoid changes to hardware and software design,

allowing the TJA1462 to be easily retrofitted to existing applications.

An AEC-Q100 Grade 0 variant, the TJR1462, is available for high temperature

applications, supporting operation at 150 °C ambient temperature.

TJA1462 variants

The TJA1462 comes in two variants, each available in an SO8 or HVSON8 package:

• The TJA1462A is a high-speed CAN transceiver with Normal and Standby modes and

a VIO supply pin. The VIO pin allows for direct interfacing with 3.3 V- and 5 V-supplied

microcontrollers.

• The TJA1462B is a high-speed CAN transceiver with Normal and Standby modes.

Features and benefits

General

• ISO 11898-2:2016, SAE J2284-1 to SAE J2284-5 and SAE J1939-14 compliant

• Implements CAN Signal Improvement Capability as defined in CiA 601-4 to significantly

reduce signal ringing effects in a network

• Much tighter bit timing symmetry performance allowing more time to reduce signal

ringing

• Low Electromagnetic Emission (EME) and high Electromagnetic Immunity (EMI)

• Qualified according to AEC-Q100 Grade 1

• TJA1462A only: VIO input for interfacing with 3.3 V to 5 V microcontrollers

• All variants are available in SO8 and leadless HVSON8 (3.0 mm x 3.0 mm) packages;

HVSON8 with improved Automated Optical Inspection (AOI) capability.

• Dark green product (halogen free and Restriction of Hazardous Substances (RoHS)

compliant)

Predictable and fail-safe behavior

• Undervoltage detection with defined handling on all supply pins

• Full functionality guaranteed from the undervoltage detection thresholds up to the

maximum limiting voltage values

• Defined behavior below the undervoltage detection thresholds

• Transceiver disengages from the bus (high-ohmic) when the supply voltage drops

below the Off mode threshold

• Internal biasing of TXD and mode selection input pins, to enable defined fail-safe

behavior

Low-power management

• Very low-current Standby mode with host and bus wake-up capability

• TJA1462A only: CAN wake-up receiver powered by VIO allowing VCC to be shut down

• CAN wake-up pattern filter time of 0.5 μs to 1.8 μs, meeting Classical CAN and CAN

FD requirements

Protection

• High ESD handling capability on the bus pins (6 kV IEC and 8 kV HBM)

• Bus pins protected against transients in automotive environments

• Transmit Data (TXD) dominant time-out function

• Thermally protected