●Overview
●The TJA1052i is a high-speed CAN transceiver that provides a galvanically isolated interface between a Controller Area Network (CAN) protocol controller and the physical two-wire CAN bus. The TJA1052i is specifically targeted at Electric Vehicles (EV) and Hybrid Electric Vehicles (HEV), where galvanic isolation barriers are needed between the high- and low-voltage parts.
●Safety:
● Isolation is required for safety reasons, eg. to protect humans from electric shock or to prevent the electronics being damaged by high voltages.
●Signal integrity:
● The isolator uses proprietary capacitive isolation technology to transmit and receive CAN signals. This technology enables more reliable data communications in noisy environments, such as high-voltage battery management systems or the drive and regeneration systems in EVs and HEVs.
●Performance:
● The transceiver is designed for high-speed CAN applications in the automotive industry, supplying the differential transmit and receive capability to a CAN protocol controller in a microcontroller. Integrating the galvanic isolation along with the transceiver in the TJA1052i removes the need for stand-alone isolation. It also improves reliability and system performance parameters such as loop delay.
●The TJA1052i belongs to the third generation of high-speed CAN transceivers from NXP Semiconductors, offering significant improvements over first- and second-generation devices. It offers improved ElectroMagnetic Compatibility (EMC) and ElectroStatic Discharge (ESD) performance, and also features ideal passive behavior to the CAN bus when the transceiver supply voltage is off.
●The TJA1052i implements the CAN physical layer as defined in the current ISO11898 standard (ISO11898-2:2003). Pending the release of ISO11898-2:2016 including CAN FD and SAE J2284-4/5, additional timing parameters defining loop delay symmetry are specified. This implementation enables reliable communication in the CAN FD fast phase at data rates up to 5 Mbit/s.
●The TJA1052i is an excellent choice for all types of automotive and industrial CAN networks where isolation is required for safety reasons or to enhance signal integrity in noisy environments.
●MoreLess
●## Features
●### General
● Isolator and Transceiver integrated into a single SO16 package, reducing board space
● ISO 11898-2:2003 compliant
● Timing guaranteed for data rates up to 5 Mbit/s in the CAN FD fast phase
● Flawless cooperation between the Isolator and the Transceiver
● Fewer components improves reliability in applications
● Guaranteed performance (eg. max loop delay <220 ns)
● Electrical transient immunity of 45 kV/μs (typ)
● AEC-Q100 qualified
● Suitable for use in 12 V and 24 V systems; compatible with 3 V to 5 V microcontrollers
● Bus common mode voltage (Vcm) = ±25 V
● Low ElectroMagnetic Emission (EME) and high ElectroMagnetic Immunity (EMI)
● Dark green product (halogen free and Restriction of Hazardous Substances (RoHS) compliant)
●### Power management
● Functional behavior predictable under all supply conditions
● Transceiver disengages from the bus when not powered up (zero load)
●### Protection
● Up to 5 kV (RMS) rated isolation
● Three versions available (1 kV, 2.5 kV and 5 kV)
● Voltage compliant with UL 1577, IEC 61010 and IEC 60950
● 5 kV (RMS) rated isolation voltage compliant with UL 1577, IEC 61010 and IEC 60950
● Supports ISO6469 ‘Electrically propelled road vehicles. Safety specifications.’
● High ESD handling capability on the bus pins
● Bus pins protected against transients in automotive environments
● Transmit Data (TXD) dominant time-out function
● Undervoltage detection on supply pins
●## Features
Part 3D Model
