NXP Semiconductors TJA1465/TJA1466 High-Speed CAN SIC Transceivers
NXP Semiconductors TJA1465 and TJA1466 High-Speed CAN Signal Improvement Capability (SIC) Transceivers with partial networking sleep mode implement CAN SIC as defined in ISO11898-2:2024 parameter sets A-C. The NXP Semiconductors TJA146x are fully interoperable with the high-speed classical CAN and CAN FD protocols and are fully developed and certified to be ISO 26262 ASIL-B compliant. CAN signal improvement significantly reduces signal ringing on a network, allowing reliable CAN FD communication at 5Mbit/s in larger topologies, and due to a much tighter bit timing symmetry performance, even enables CAN FD communication up to 8Mbit/s.
These components support CAN partial networking by means of selective wake-up functionality, as specified in ISO 11898-2:2024. This functionality allows the transceiver to remain in sleep mode even when CAN bus traffic is running when it is not required to be active. The TJA1465 and TJA1466 offer a CAN FD/ CAN XL passive feature (in sleep mode) that prevents the transceiver from waking up and shields the CAN controller from CAN FD and CAN XL messages when running a mixed bus communication.
The TJA1465B and TJA1466 offer an extended feature set on top of the TJA1465A. TJA1465B includes a TXEN_N pin for disabling the transmitter through an external pin and three GPIO pins that can be configured to an extended set of functionalities, including a second TXD/ RXD channel. TJA1466 offers two configurable GPIO pins, a Q&A watchdog with dedicated reset and failsafe/limp home pins, and accurate VIO undervoltage and overvoltage monitoring.
Features
- ISO 11898-2:2024 parameter sets A-C, SAE J2284-1 to SAE J2284-5, and SAE J1939-14 compliant
- ISO 26262, ASIL B compliant
- Partial networking capability through selective wake-up functionality
- Configurable general-purpose I/O (GPIO) pins (TJA1465B and TJA1466)
- Second RXD and/or TXD pins (RXD2/TXD2), configurable via GPIO (TJA1465B and TJA1466)
- Direct transmitter on/off control input (TXEN_N) (TJA1465B and TJA1466)
- CAN signal improvement capability as defined in ISO 11898-2:2024 parameter set C to significantly reduce signal ringing effects on a network
- Autonomous bus biasing
- Low electromagnetic emission (EME) and high electromagnetic immunity (EMI)
- Qualified according to AEC-Q100 Grade 1
- VIO input for interfacing with 1.8V, 3.3V to 5V microcontrollers
- ListenOnly mode for node diagnosis and failure containment
- Package options
- TJA1465A available in an SO14 package and leadless HVSON14 package with automatic optical inspection (AOI) capabilities
- TJA1465B and TJA1466 available in a DHVQFN18 package (3.0mm × 4.5mm) with automatic optical inspection (AOI) capabilities
- Option to disable Sleep mode (TJA1466)
- Software Development mode (TJA1466)
- Dark green product [halogen free and restriction of hazardous substances (RoHS) compliant]
- Selectable interrupts on RXD; option to signal only wake-up and power-on related interrupts or all interrupts
- 4-byte general-purpose memory
- SPI system reset
- End-of-line microcontroller flashing support through CAN pins
- Selectable WAKE pin filter time
- Predictable and fail-safe behavior
- Undervoltage detection on all supply pins with defined behavior below the undervoltage thresholds
- Functionality guaranteed from the undervoltage detection thresholds up to the maximum limiting voltage values
- Transceiver disengages from the bus (high-ohmic) when the battery voltage drops below the Off mode threshold
- Internal biasing of TXD to enable defined fail-safe behavior
- Dedicated failsafe pin, configurable for limp-home or failsafe output functionality (TJA1466)
- Dedicated reset pin for triggering and detecting reset events (TJA1466)
- Low-power management
- Very low-current Standby and Sleep modes, with local and remote wake-up capability
- Local wake-up via the WAKE pin
- Remote wake-up via a wake-up pattern (WUP) or wake-up frame (WUF)
- Configurable CAN wake-up pattern (dom-rec-dom or dom-rec-dom-rec) according to ISO 11898-2:2024
- Selective wake-up according to ISO 11898-2:2024
- Entire node containing the TJA1465 and TJA1466 can be powered down via INH while still supporting local and remote wake-up
- Only VBAT is needed to support local and remote wake-up
- Support for pretended networking through low-power ListenOnly mode
- Diagnosis and protection
- Overtemperature diagnosis and protection
- Overvoltage detection with defined behavior on VIO supply pin (TJA1466)
- Transmit data (TXD) dominant time-out diagnosis and protection
- Bus dominant failure diagnosis
- Cold start diagnosis (first battery connection)
- High ESD handling capability on the bus pins
- Bus pins and VBAT protected against automotive transients
Applications
- Automotive zone controllers
- Automotive Battery Management Systems (BMS)
- Electric Vehicle (EV) traction inverters
- Hybrid Electric Vehicles (HEVs)
- Industrial data buses and battery management
TJA1465A Block Diagram
TJA1465B Block Diagram
TJA1466 Block Diagram
Related Products
NXP Semiconductors Szybkie urządzenia nadawczo-odbiorcze CAN TJA1445/TJA1446
Features a partial networking sleep mode and implements CAN FD.
Development Tools
NXP Semiconductors TJA14xxEVB Evaluation Boards
Helps users evaluate the features and capabilities of the TJA14xx series CAN FD transceivers.