NXP Semiconductors TJA1051 High-Speed CAN Transceivers
NXP Semiconductors TJA1051 High-Speed CAN Transceivers offer an interface between a Controller Area Network (CAN) protocol controller and the physical two-wire CAN bus. The TJA1051 is intended for high-speed CAN applications in the automotive industry. The device provides differential transmit and receive capability to (a microcontroller with) a CAN protocol controller.
The TJA1051 Transceivers are part of the third generation of high-speed CAN transceivers from NXP Semiconductors, supplying significant improvements over first- and second-generation devices such as the TJA1050. The TJA1051 also provides improved ElectroMagnetic Compatibility (EMC) and ElectroStatic Discharge (ESD) performance with:
• Ideal passive behavior to the CAN bus when the supply voltage is off
• TJA1051T/3 and TJA1051TK/3 can be interfaced directly to microcontrollers with supply voltages from 3V to 5V
The TJA1051 implements the CAN physical layer defined in ISO 11898-2:2016 and SAE J2284-1 to SAE J2284-5. This implementation allows reliable communication in the CAN FD fast phase at data rates up to 5Mbit/s. These features make the TJA1051 an exceptional choice for all types of HS-CAN networks in nodes that do not require a standby mode with wake-up capability through the bus.
The TJA1051 is a high-speed CAN stand-alone transceiver with Silent mode and available in three versions, determined only by the function of pin 5:
• The TJA1051T is backward compatible with the TJA1050
• The TJA1051T/3 and TJA1051TK/3 allow for direct interfacing to microcontrollers with supply voltages down to 3V
• The TJA1051T/E allows the transceiver to be switched to a very low-current Off mode
FEATURES
- General
- ISO 11898-2:2016 and SAE J2284-1 to SAE J2284-5 compliant
- Timing guaranteed for data rates up to 5Mbit/s in the CAN FD fast phase
- Suitable for 12V and 24V systems
- Low ElectroMagnetic Emission (EME) and high Electromagnetic Immunity (EMI)
- VIO input on TJA1051T/3 and TJA1051TK/3 allows for direct interfacing with 3V to 5V microcontrollers (available in SO8 and very small HVSON8 packages, respectively)
- EN input on TJA1051T/E allows the microcontroller to switch the transceiver to a very low-current Off mode
- Available in SO8 package or leadless HVSON8 package (3.0mm x 3.0mm) with improved Automated Optical Inspection (AOI) capability
- Dark green product (halogen-free and Restriction of Hazardous Substances (RoHS) compliant)
- AEC-Q100 qualified
- Low-power management
- Functional behavior predictable under all supply conditions
- Transceiver disengages from the bus when not powered up (zero loads)
- Protection
- High ElectroStatic Discharge (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 pins VCC and VIO
- Thermally protected
SPECIFICATIONS
- 4.5V to 5.5V supply voltage
- -8kV to +8kV electrostatic discharge voltage
- Supply current
- 2.5mA silent mode
- 10mA normal mode, bus recessive
- 70mA normal mode, bus dominant
