TJA1051 Datasheet, PDF (1/18 Pages) NXP Semiconductors – High-speed CAN transceiver

TJA1051
High-speed CAN transceiver
Rev. 02 — 1 July 2009
Product data sheet
1. General description
The TJA1051 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 (up to 1 Mbit/s) CAN applications in the
automotive industry, providing differential transmit and receive capability to (a
microcontroller with) a CAN protocol controller.
The TJA1051 is a up from the TJA1050 high-speed CAN transceiver. It offers improved
ElectroMagnetic Compatibility (EMC) and ElectroStatic Discharge (ESD) performance,
and also features:
• Ideal passive behavior to the CAN bus when the supply voltage is off
• Direct interfacing to microcontrollers with 3 V to 5 V supply voltages on TJA1051T/3
and TJA1051TK/3.
These features make the TJA1051 an excellent choice for all types of HS-CAN networks,
in nodes that do not require a standby mode with wake-up capability via the bus.
2. Features
2.1 General
I Fully ISO 11898-2 compliant
I Suitable for 12 V and 24 V systems
I Low ElectroMagnetic Emission (EME) and high ElectroMagnetic Immunity (EMI)
I V_IO input on TJA1051T/3 and TJA1051TK/3 allows for direct interfacing with 3 V to 5 V
microcontrollers (available in SO8 and very small HVSON8 packages respectively)
2.2 Low-power management
I Functional behavior predictable under all supply conditions
I Transceiver disengages from the bus when not powered up (zero load)
2.3 Protection
I High ElectroStatic Discharge (ESD) handling capability on the bus pins
I Bus pins protected against transients in automotive environments
I Transmit Data (TXD) dominant time-out function
I Undervoltage detection on pins V_CC and V_IO
I Thermally protected