Overview
The TJA1043TKY, produced by NXP USA Inc., is a high-speed CAN (Controller Area Network) transceiver designed for high-speed CAN applications, particularly in the automotive industry. This transceiver provides an interface between a CAN protocol controller and the physical two-wire CAN bus, ensuring reliable communication at data rates up to 5 Mbit/s in the CAN FD fast phase. It belongs to the third generation of high-speed CAN transceivers from NXP Semiconductors, offering significant improvements in ElectroMagnetic Compatibility (EMC), ElectroStatic Discharge (ESD) performance, and low power consumption. The TJA1043TKY is compliant with ISO 11898-2:2016 and SAE J2284-1 to SAE J2284-5 standards, making it an ideal choice for high-speed CAN networks that require continuous availability even when internal supplies are switched off.
Key Specifications
| Symbol | Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| VCC | Supply voltage | 4.5 | 5.5 | V | ||
| VIO | Supply voltage on pin VIO | 2.8 | 5.5 | V | ||
| Vuvd(VCC) | Undervoltage detection voltage on pin VCC | VBAT or VCC > 4.5 V | 3 | 3.5 | 4.3 | V |
| Vuvd(VIO) | Undervoltage detection voltage on pin VIO | VBAT or VCC > 4.5 V | 0.8 | 1.8 | 2.5 | V |
| ICC | Supply current | Normal mode; bus dominant | 30 | 48 | 65 | mA |
| ICC | Supply current | Normal or Listen-only mode; bus recessive | 3 | 6 | 9 | mA |
| ICC | Supply current | Standby or Sleep mode | 0 | 0.75 | 2 | μA |
| IIO | Supply current on pin VIO | Normal mode; VTXD = 0 V (dominant) | 150 | 500 | μA | |
| IIO | Supply current on pin VIO | Normal or Listen-only mode; VTXD = VIO (recessive) | 0 | 1 | 4 | μA |
| IIO | Supply current on pin VIO | Standby or Sleep mode | 0 | 1 | 4 | μA |
Key Features
- Compliant with ISO 11898-2:2016 and SAE J2284-1 to SAE J2284-5 standards.
- Loop delay symmetry timing enables reliable communication at data rates up to 5 Mbit/s in the CAN FD fast phase.
- Suitable for 12 V and 24 V systems.
- Low ElectroMagnetic Emission (EME) and high ElectroMagnetic Immunity (EMI).
- VIO input allows for direct interfacing with 3 V and 5 V microcontrollers.
- SPLIT voltage output for stabilizing the recessive bus level.
- Listen-only mode for node diagnosis and failure containment.
- Available in SO14 and HVSON14 packages.
- Leadless HVSON14 package (3.0 mm × 4.5 mm) with improved Automated Optical Inspection (AOI) capability.
- AEC-Q100 qualified.
- Dark green product (halogen free and Restriction of Hazardous Substances (RoHS) compliant).
- Very low current Standby and Sleep modes, with local and remote wake-up.
- Capability to power down the entire node while supporting local, remote, and host wake-up.
- Wake-up source recognition.
- Transceiver disengages from the bus (zero load) when VBAT absent.
- Functional behavior predictable under all supply conditions.
- High ESD handling capability on the bus pins.
- Bus pins and VBAT protected against transients in automotive environments.
- Transmit Data (TXD) dominant time-out function with diagnosis.
- TXD-to-RXD short-circuit handler with diagnosis.
- Thermal protection with diagnosis.
- Undervoltage detection and recovery on pins VCC, VIO, and VBAT.
- Bus line short-circuit diagnosis.
- Bus dominant clamping diagnosis.
- Cold start diagnosis (first battery connection).
Applications
The TJA1043TKY is primarily designed for high-speed CAN applications in the automotive industry. It is suitable for various automotive systems that require reliable and efficient communication over the CAN bus, including:
- Vehicle control systems.
- Infotainment systems.
- Advanced driver-assistance systems (ADAS).
- Automotive networking and communication systems.
- Industrial control systems that require high-speed CAN communication.
Q & A
- What is the TJA1043TKY used for?
The TJA1043TKY is a high-speed CAN transceiver used to provide an interface between a CAN protocol controller and the physical two-wire CAN bus in automotive and industrial applications.
- What standards does the TJA1043TKY comply with?
The TJA1043TKY complies with ISO 11898-2:2016 and SAE J2284-1 to SAE J2284-5 standards.
- What are the key features of the TJA1043TKY?
Key features include low power consumption, improved EMC and ESD performance, wake-up source recognition, and various protection and diagnostic functions.
- What are the typical supply voltage ranges for the TJA1043TKY?
The supply voltage ranges are 4.5 V to 5.5 V for VCC and 2.8 V to 5.5 V for VIO.
- What is the maximum data rate supported by the TJA1043TKY?
The TJA1043TKY supports data rates up to 5 Mbit/s in the CAN FD fast phase.
- What packages is the TJA1043TKY available in?
The TJA1043TKY is available in SO14 and HVSON14 packages.
- Is the TJA1043TKY AEC-Q100 qualified?
Yes, the TJA1043TKY is AEC-Q100 qualified.
- What is the purpose of the SPLIT voltage output in the TJA1043TKY?
The SPLIT voltage output is used for stabilizing the recessive bus level.
- Does the TJA1043TKY support wake-up functions?
Yes, it supports local, remote, and host wake-up functions with wake-up source recognition.
- What kind of protection does the TJA1043TKY offer?
The TJA1043TKY offers high ESD handling capability, bus pins and VBAT protection against transients, and various diagnostic functions including bus line short-circuit detection and thermal protection.
- Is the TJA1043TKY RoHS compliant?
Yes, the TJA1043TKY is RoHS compliant and halogen-free.
