Overview
The TJA1042T/3,112 is a high-speed CAN (Controller Area Network) transceiver produced by NXP USA Inc. This component is designed to provide an interface between a CAN protocol controller and the physical two-wire CAN bus, making it a crucial element in automotive and industrial communication systems. The TJA1042T/3,112 belongs to the third generation of high-speed CAN transceivers, offering significant improvements in ElectroMagnetic Compatibility (EMC), ElectroStatic Discharge (ESD) performance, and quiescent current compared to earlier generations.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Description |
|---|---|---|---|---|---|
| VCC | 4.5 | - | 5.5 | V | Supply Voltage |
| VIO | 2.8 | - | 5.5 | V | I/O Voltage |
| Data Rate | - | - | 5 Mbit/s | - | Maximum data rate in CAN FD fast phase |
| Package | - | - | - | SO8, HVSON8 | Package types available |
| Operating Temperature | -40 | - | 150 | °C | Junction temperature range |
| ESD Handling | - | - | ±8 kV | - | Bus pins ESD handling capability |
Key Features
- High-Speed CAN Capability: Supports data rates up to 5 Mbit/s in the CAN FD fast phase.
- Standby Mode: Very low-current Standby mode with host and bus wake-up capability.
- Improved EMC and ESD Performance: Compliant with proposed EMC standards IEC 62228-3 and SAE J2962-2, and high ESD handling capability on bus pins.
- Flexible Voltage Options: Variants with a VIO pin allow for direct interfacing with 3.3 V to 5 V microcontrollers.
- SPLIT Voltage Output: Available on some variants for stabilizing the recessive bus level.
- Predictable and Fail-Safe Behavior: Transceiver disengages from the bus when the supply voltage drops below the switch-off undervoltage threshold.
- AEC-Q100 Qualified: Suitable for automotive applications.
- RoHS Compliant: Halogen-free and compliant with Restriction of Hazardous Substances (RoHS) standards.
Applications
The TJA1042T/3,112 is primarily used in high-speed CAN applications within the automotive industry. It is suitable for 12 V and 24 V systems and is often employed in vehicle networks, driver assistance systems, and other automotive communication systems. Additionally, it can be used in industrial automation and other environments requiring reliable and high-speed CAN communication.
Q & A
- What is the primary function of the TJA1042T/3,112?
The primary function is to provide an interface between a CAN protocol controller and the physical two-wire CAN bus.
- What are the supported data rates for the TJA1042T/3,112?
It supports data rates up to 5 Mbit/s in the CAN FD fast phase.
- What are the available package types for the TJA1042T/3,112?
The component is available in SO8 and HVSON8 packages.
- Is the TJA1042T/3,112 AEC-Q100 qualified?
Yes, it is AEC-Q100 qualified, making it suitable for automotive applications.
- What is the operating temperature range for the TJA1042T/3,112?
The junction temperature range is from -40°C to 150°C.
- Does the TJA1042T/3,112 have ESD protection?
Yes, it has high ESD handling capability on the bus pins, up to ±8 kV.
- What is the purpose of the SPLIT voltage output on some variants?
The SPLIT voltage output is used for stabilizing the recessive bus level.
- Is the TJA1042T/3,112 RoHS compliant?
Yes, it is RoHS compliant and halogen-free.
- What are the typical applications of the TJA1042T/3,112?
It is used in automotive and industrial automation for high-speed CAN communication.
- Does the TJA1042T/3,112 support Standby mode?
Yes, it has a very low-current Standby mode with host and bus wake-up capability.
