TJR1448AT/0Z NXP

TJR1448 Dual high-speed CAN transceiver with Standby mode Rev. 2 15 October 2021 Product data sheet 1 General description The TJR1448 is a member of the TJR144x 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. TJR144x 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. All TJR144x variants enable reliable communication in the CAN FD fast phase at data rates up to 5 Mbit/s and are qualified to AEC-Q100 Grade 0, supporting operation at 150 C ambient temperature. The TJR1448 is intended as a simple replacement for dual high-speed Classical CAN and CAN FD transceivers, such as the TJA1059 from NXP. It offers pin compatibility and is designed to avoid changes to hardware and software design, allowing the TJR1448 to be easily retrofitted to existing applications. An AEC-Q100 Grade 1 variant, the TJA1448, is available to support operation at 125 C ambient temperature. 1.1 TJR1448 variants The TJR1448 comes in three variants. The TJR1448A and TJR1448B are available in SO14 and HVSON14 packages. The TJR1448C comes in a HVSON14 package: The TJR1448A is a dual 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 TJR1448B is a high-speed CAN transceiver with Normal and Standby modes. The TJR1448C is a dual high-speed CAN transceiver with Normal and Standby modes, a VIO supply pin and RXD latching. The VIO pin allows for direct interfacing with 3.3 V and 5 V-supplied microcontrollers. 2 Features and benefits 2.1 General ISO 11898-2:2016, SAE J2284-1 to SAE J2284-5 and SAE J1939-14 compliant Standard CAN and CAN FD data bit rates up to 5 Mbit/s Low Electromagnetic Emission (EME) and high Electromagnetic Immunity (EMI) Qualified according to AEC-Q100 Grade 0 TJR1448A/C only: VIO input for interfacing with 3.3 V to 5 V microcontrollers Fully independent control of two transceivers combined monolithically in a single packageNXP Semiconductors TJR1448 Dual high-speed CAN transceiver with Standby mode All variants are available in a leadless HVSON14 (3.0 mm x 4.5 mm) package with improved Automated Optical Inspection (AOI) capability TJR1448A/B available in an SO14 package. Dark green product (halogen free and Restriction of Hazardous Substances (RoHS) compliant) 2.2 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 2.3 Low-power management Very low-current Standby mode with host and bus wake-up capability TJR1448A/C only: CAN wake-up receiver powered by V allowing V to be shut IO CC down CAN wake-up pattern filter time of 0.5 s to 1.8 s meeting Classical CAN and CAN FD requirements TJR1448C variant offers RXD wake-up latching to enable wake-up source readout in gateway applications 2.4 Protection High ESD handling capability on the bus pins (8 kV IEC and HBM) Bus pins protected against transients in automotive environments Transmit Data (TXD) dominant time-out function Thermally protected TJR1448 All information provided in this document is subject to legal disclaimers. NXP B.V. 2021. All rights reserved. Product data sheet Rev. 2 15 October 2021 2 / 38