Overview
The TJA1049TK/3J is a high-speed CAN (Controller Area Network) transceiver produced by NXP USA Inc. This component is part of the third generation of high-speed CAN transceivers, offering significant improvements in ElectroMagnetic Compatibility (EMC) and ElectroStatic Discharge (ESD) performance. It is designed to interface between a CAN protocol controller and the physical two-wire CAN bus, making it an excellent choice for various high-speed CAN applications, particularly in the automotive industry.
The TJA1049TK/3J complies with the current ISO11898 standard (ISO11898-2:2016 and ISO11898-5:2007) and supports data rates up to 5 Mbit/s in the CAN FD fast phase. It features a low-power standby mode with wake-up capability via the CAN bus, making it suitable for nodes that require low-power operation.
Key Specifications
| Parameter | Description |
|---|---|
| Part Number | TJA1049TK/3J |
| Manufacturer | NXP USA Inc. |
| Package | 8-HVSON (3x3 mm) |
| Supply Voltage | 4.75 V to 5.25 V |
| Operating Temperature | -40°C to 150°C |
| Data Rate | Up to 5 Mbps |
| Protocol | CAN |
| Standby Mode Current | 5 μA to 14 μA |
| ESD Handling | High ESD handling capability on bus pins |
| Compliance | ISO 11898-2:2016, SAE J2284-1 to SAE J2284-5, AEC-Q100 qualified |
Key Features
- Improved EMC and ESD performance compared to previous generations.
- Low-power standby mode with bus wake-up capability.
- Suitable for 12 V and 24 V systems.
- Low ElectroMagnetic Emission (EME) and high ElectroMagnetic Immunity (EMI).
- SPLIT voltage output for stabilizing the recessive bus level.
- VIO input allows direct interfacing with 3 V to 5 V microcontrollers.
- Thermally protected and undervoltage detection on pin VCC.
- Bus pins protected against transients in automotive environments.
- Transmit Data (TXD) dominant time-out function and bus-dominant time-out function in Standby mode.
- AEC-Q100 qualified and RoHS compliant.
Applications
The TJA1049TK/3J is primarily used in high-speed CAN (HS-CAN) networks within the automotive industry. It is suitable for various automotive applications that require reliable communication at high data rates, such as:
- Vehicle control systems.
- Infotainment systems.
- Advanced driver-assistance systems (ADAS).
- Automotive networking and communication systems.
Q & A
- What is the primary function of the TJA1049TK/3J?
The TJA1049TK/3J is a high-speed CAN transceiver that interfaces between a CAN protocol controller and the physical two-wire CAN bus.
- What are the key improvements of the TJA1049TK/3J over previous generations?
The TJA1049TK/3J offers improved EMC and ESD performance, low-power standby mode, and compliance with the latest ISO11898 standards.
- What is the maximum data rate supported by the TJA1049TK/3J?
The TJA1049TK/3J supports data rates up to 5 Mbit/s in the CAN FD fast phase.
- What are the operating voltage and temperature ranges for the TJA1049TK/3J?
The operating voltage range is 4.75 V to 5.25 V, and the operating temperature range is -40°C to 150°C.
- Is the TJA1049TK/3J compliant with automotive standards?
Yes, it is AEC-Q100 qualified and compliant with ISO 11898-2:2016 and SAE J2284-1 to SAE J2284-5 standards.
- What is the purpose of the SPLIT voltage output in the TJA1049TK/3J?
The SPLIT voltage output is used for stabilizing the recessive bus level.
- How does the TJA1049TK/3J handle ESD and EMC?
The TJA1049TK/3J has high ESD handling capability on bus pins and offers low EME and high EMI.
- What is the standby mode current of the TJA1049TK/3J?
The standby mode current is between 5 μA and 14 μA.
- Is the TJA1049TK/3J RoHS compliant?
Yes, the TJA1049TK/3J is RoHS compliant and halogen-free.
- What types of automotive applications is the TJA1049TK/3J suitable for?
The TJA1049TK/3J is suitable for various automotive applications including vehicle control systems, infotainment systems, and ADAS.
