Overview
The TJA1042T/1U, produced by NXP USA Inc., is a high-speed CAN (Controller Area Network) transceiver designed to provide a reliable interface between a CAN protocol controller and the physical two-wire CAN bus. This component is optimized for high-performance and low-power operation, making it suitable for a wide range of applications, particularly in automotive and industrial environments.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Type | Transceiver | High-speed CAN transceiver |
| Protocol | CANbus | Compliant with ISO 11898-2:2016, SAE J2284-1 to SAE J2284-5, and SAE J1939-14 |
| Number of Drivers/Receivers | 1/1 | |
| Duplex | Half | |
| Receiver Hysteresis | 120 mV | |
| Data Rate | Up to 5 Mbps | |
| Voltage - Supply | 4.5 V to 5.5 V | |
| Operating Temperature | -40°C to 150°C (TJ) | |
| Mounting Type | Surface Mount | |
| Package/Case | 8-SOIC (0.154", 3.90mm Width) |
Key Features
- Low-Power Mode: The TJA1042T/1U features a very low-current Standby mode with bus wake-up capability, making it energy-efficient.
- High Performance: Supports data rates up to 5 Mbit/s in the CAN FD fast phase, ensuring reliable high-speed communication.
- Compatibility: Variants with a VIO pin allow direct interfacing with microcontrollers having supply voltages from 3.3 V to 5 V.
- Electromagnetic Compatibility: Low Electromagnetic Emission (EME) and high Electromagnetic Immunity (EMI) according to proposed EMC Standards IEC 62228-3 and SAE J2962-2.
- Network Support: Suitable for 12 V and 24 V systems, and supports larger network topologies due to shorter propagation delay in some variants.
- Package Options: Available in SO8 and leadless HVSON8 (3.0 mm × 3.0 mm) packages.
Applications
The TJA1042T/1U is widely used in various applications, including:
- Automotive Systems: Ideal for vehicle networks, such as in-vehicle communication systems and driver assistance systems.
- Industrial Automation: Suitable for industrial control systems, robotics, and other high-reliability industrial applications.
- Medical Devices: Can be used in medical equipment that requires reliable and high-speed data communication.
- Aerospace and Defense: Applicable in aerospace and defense systems where robust and reliable communication is critical.
Q & A
- What is the primary function of the TJA1042T/1U?
The TJA1042T/1U is a high-speed CAN transceiver that provides an interface between a CAN protocol controller and the physical two-wire CAN bus.
- What are the supported data rates for the TJA1042T/1U?
The TJA1042T/1U supports data rates up to 5 Mbit/s in the CAN FD fast phase.
- What is the operating voltage range for the TJA1042T/1U?
The operating voltage range is 4.5 V to 5.5 V.
- What are the package options available for the TJA1042T/1U?
It is available in SO8 and leadless HVSON8 (3.0 mm × 3.0 mm) packages.
- Does the TJA1042T/1U support low-power modes?
Yes, it features a very low-current Standby mode with bus wake-up capability.
- Is the TJA1042T/1U compliant with any specific standards?
Yes, it is compliant with ISO 11898-2:2016, SAE J2284-1 to SAE J2284-5, and SAE J1939-14.
- What is the operating temperature range for the TJA1042T/1U?
The operating temperature range is -40°C to 150°C (TJ).
- Can the TJA1042T/1U be used in 12 V and 24 V systems?
Yes, it is suitable for both 12 V and 24 V systems.
- Does the TJA1042T/1U have any specific electromagnetic compatibility features?
Yes, it has low Electromagnetic Emission (EME) and high Electromagnetic Immunity (EMI) according to proposed EMC Standards IEC 62228-3 and SAE J2962-2.
- What are some common applications of the TJA1042T/1U?
It is commonly used in automotive systems, industrial automation, medical devices, and aerospace and defense systems.
