TJA1145 High-speed CAN transceiver for partial networking Rev. 1 27 September 2013 Product data sheet 1. General description The TJA1145 is a high-speed CAN transceiver that provides an interface between a Controller Area Network (CAN) protocol controller and the physical two-wire CAN bus. The transceiver is designed for high-speed CAN applications in the automotive industry, providing differential transmit and receive capability to (a microcontroller with) a CAN protocol controller. The TJA1145 features very low power consumption in Standby and Sleep modes and supports ISO 11898-6 compliant CAN Partial Networking by means of a selective wake-up function. A dedicated implementation of the partial networking function has been embedded into the TJA1145/FD variants TJA1145T/FD and TJA1145TK/FD (see Section 6.3.1 for further details on CAN FD). This function is called FD-passive and is the ability to ignore CAN FD frames while waiting for a valid wake-up frame in Sleep/Standby mode. This additional feature of partial networking is the perfect fit for networks that support both CAN FD and standard CAN 2.0 communications. It allows normal CAN controllers that do not need to communicate CAN FD messages to remain in partial networking Sleep/Standby mode during CAN FD communication without generating bus errors. Advanced power management regulates the supply throughout the node and supports local and remote wake-up functionality. I/O levels are automatically adjusted to the I/O levels of the controller, allowing the TJA1145 to interface directly with 3.3 V to 5 V microcontrollers. An SPI interface is provided for transceiver control and for retrieving status information. Bus connections are truly floating when power is off. These features make the TJA1145 the ideal choice for high-speed CAN networks containing nodes that are always connected to the battery supply line but, in order to minimize current consumption, are only active when required by the application. 2. Features and benefits 2.1 General Fully compliant with the ISO 11898-2, ISO 11898-5 and ISO 11898-6 standards Autonomous bus biasing according to ISO 11898-6 Optimized for in-vehicle high-speed CAN communication No false wake-ups due to CAN FD frame detection in TJA1145/FD variants 2.2 Designed for automotive applications 8 kV ElectroStatic Discharge (ESD) protection, according to the Human Body Model (HBM) on the CAN bus pinsTJA1145 NXP Semiconductors High-speed CAN transceiver for partial networking 6 kV ESD protection, according to IEC 61000-4-2 on pins BAT and WAKE and on the CAN bus pins CAN bus pins short-circuit proof to 58 V Battery and CAN bus pins protected against transients according to ISO 7637-3, test pulses 1, 2a, 3a and 3b. Suitable for use in 12 V and 24 V systems Available in SO14 and leadless HVSON14 package (3 mm 4.5 mm) with improved Automated Optical Inspection (AOI) capability Dark green product (halogen free and Restriction of Hazardous Substances (RoHS) compliant) 2.3 Advanced ECU power management system Very low-current Standby and Sleep modes, with full wake-up capability Entire node can be powered down via the inhibit output Remote wake-up capability via standard CAN wake-up pattern or via ISO 11898-6 compliant selective wake-up frame detection Local wake-up via the WAKE pin Wake-up source recognition Local and/or remote wake-up can be disabled to reduce current consumption Transceiver disengages from the bus when the battery supply is removed VIO input allows for direct interfacing with 3.3 V to 5 V microcontrollers 2.4 Protection and diagnosis 16-, 24- or 32-bit SPI for configuration, control and diagnosis Transmit Data (TXD) dominant time-out function with diagnosis Overtemperature warning and shut-down Undervoltage detection and recovery on pins VCC, VIO and BAT Cold start diagnosis (via bits PO and NMS) Advanced system and transceiver interrupt handling TJA1145 All information provided in this document is subject to legal disclaimers. NXP B.V. 2013. All rights reserved. Product data sheet Rev. 1 27 September 2013 2 of 48