Overview
The TJA1042T/1J is a high-speed Controller Area Network (CAN) transceiver produced by NXP USA Inc. This component is designed to provide a reliable interface between a CAN protocol controller and the physical CAN bus. It is fully compliant with ISO 11898-2:2016 and SAE J2284-1 to SAE J2284-5 standards, ensuring robust and efficient communication in various automotive and industrial applications.
The TJA1042T/1J features a low-current Standby mode with bus wake-up capability, making it an excellent choice for nodes that require low-power operation. It supports data rates up to 5 Mbit/s in the CAN FD fast phase and is suitable for use in 12 V and 24 V systems.
Key Specifications
| Parameter | Description | Min | Max | Unit | |
|---|---|---|---|---|---|
| Supply Voltage (VCC) | Nominal supply voltage | 4.5 | - | 5.5 | V |
| Data Rate | Maximum data rate | - | - | 5 | Mbps |
| Operating Temperature | Range of operating temperature | -40 | - | 150 | °C |
| Package Style | Type of package | - | - | SOIC-8 | - |
| Mounting Method | Method of mounting | - | - | Surface Mount | - |
| Standby Mode Current | Current in Standby mode | 15 | - | 70 | μA |
| Supply Current (Normal Mode) | Current in normal mode | 2.5 | - | 110 | mA |
Key Features
- Fully compliant with ISO 11898-2:2016 and SAE J2284-1 to SAE J2284-5 standards.
- Supports data rates up to 5 Mbit/s in the CAN FD fast phase.
- Low-current Standby mode with bus wake-up capability.
- Variants with a VIO pin allow direct interfacing with microcontrollers having supply voltages from 3.3 V to 5 V.
- Shorter propagation delay in TJA1042B and TJA1042C variants, supporting larger network topologies.
- SPLIT voltage output on TJA1042T and TJA1042CT for stabilizing the recessive bus level.
- Low Electromagnetic Emission (EME) and high Electromagnetic Immunity (EMI) according to proposed EMC Standards IEC 62228-3 and SAE J2962-2.
Applications
- Automotive systems: engine management, body control units, advanced driver assistance systems (ADAS), and other automotive networking applications.
- Industrial automation: CAN communication in industrial control systems.
- Gateway solutions: facilitating communication between different network segments.
- Energy diagnostics: monitoring and managing energy consumption in various systems.
Q & A
- What is the TJA1042T/1J used for?
The TJA1042T/1J is used as a high-speed CAN transceiver to provide an interface between a CAN protocol controller and the physical CAN bus.
- What are the key standards it complies with?
It complies with ISO 11898-2:2016 and SAE J2284-1 to SAE J2284-5 standards.
- What is the maximum data rate supported by the TJA1042T/1J?
The TJA1042T/1J supports data rates up to 5 Mbit/s in the CAN FD fast phase.
- What is the operating temperature range of the TJA1042T/1J?
The operating temperature range is from -40°C to 150°C.
- What type of package does the TJA1042T/1J come in?
The TJA1042T/1J comes in an SOIC-8 package.
- Does the TJA1042T/1J support low-power operation?
Yes, it features a low-current Standby mode with bus wake-up capability.
- Can the TJA1042T/1J be used with microcontrollers of different supply voltages?
Yes, variants with a VIO pin can be interfaced directly with microcontrollers having supply voltages from 3.3 V to 5 V.
- What are some of the key applications of the TJA1042T/1J?
It is used in automotive systems, industrial automation, gateway solutions, and energy diagnostics.
- Does the TJA1042T/1J have any special features for electromagnetic compatibility?
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 is the SPLIT voltage output feature in the TJA1042T/1J?
The SPLIT voltage output on TJA1042T and TJA1042CT variants is used for stabilizing the recessive bus level.
