Overview
The TJA1441AT/0Z is a high-speed CAN (Controller Area Network) transceiver developed by NXP USA Inc. This component is designed as a simple replacement for classical CAN and CAN FD transceivers, such as the TJA1051 or TJA1057. It is engineered to provide low Electromagnetic Emission (EME) and high Electromagnetic Immunity (EMI), making it suitable for demanding automotive and industrial environments. The TJA1441AT/0Z is qualified according to AEC-Q100 Grade 1, ensuring reliability and performance under stringent conditions.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| VCC supply voltage | Normal mode | 4.5 | - | 5.5 | V |
| ICC supply current (Normal mode, dominant) | VTXD = 0 V | - | 38 | 60 | mA |
| ICC supply current (Normal mode, recessive) | VTXD = VIO | - | 4 | 7 | mA |
| ICC supply current (Silent mode) | VTXD = VIO | - | 3 | 6 | mA |
| ICC supply current (Off mode, TJA1441D only) | - | 90 | - | 250 | μA |
| Vuvd(VCC) undervoltage detection voltage | - | 4 | - | 4.5 | V |
| Vuvhys undervoltage hysteresis voltage | - | 50 | - | - | mV |
| VIO supply voltage (TJA1441A) | - | 2.95 | - | 5.5 | V |
Key Features
- Low Electromagnetic Emission (EME) and high Electromagnetic Immunity (EMI): Ensures reliable operation in noisy environments.
- Silent mode for node diagnosis and failure containment: Allows for diagnostic and failure containment without disrupting the CAN bus.
- VIO input for interfacing with 3.3 V to 5 V microcontrollers (TJA1441A): Enhances compatibility with various microcontrollers.
- Dedicated input for switching to very low-current Off mode and disengaging from the bus (TJA1441D): Reduces power consumption in standby or off states.
- Undervoltage detection with defined handling on all supply pins: Provides predictable and fail-safe behavior under voltage variations.
- High ESD handling capability on the bus pins (8 kV IEC and HBM): Protects against electrostatic discharges.
- Thermally protected: Ensures the component remains functional under thermal stress.
- Available in SO8 and leadless HVSON8 packages: Offers flexibility in design and manufacturing.
Applications
The TJA1441AT/0Z is primarily used in automotive and industrial applications where high-speed CAN communication is required. It is suitable for:
- Automotive networks (e.g., vehicle control systems, infotainment systems)
- Industrial automation (e.g., control systems, sensors, actuators)
- Medical devices requiring reliable CAN communication
- Other applications demanding robust and reliable CAN transceivers
Q & A
- What is the primary function of the TJA1441AT/0Z?
The TJA1441AT/0Z is a high-speed CAN transceiver designed for reliable communication in automotive and industrial environments. - What are the key advantages of the TJA1441AT/0Z over other CAN transceivers?
It offers low EME, high EMI, silent mode for diagnostics, and undervoltage detection with defined handling. - What are the supported supply voltage ranges for the TJA1441AT/0Z?
The VCC supply voltage range is 4.5 V to 5.5 V, and the VIO supply voltage range for the TJA1441A is 2.95 V to 5.5 V. - How does the TJA1441AT/0Z handle undervoltage conditions?
The component has undervoltage detection with defined handling on all supply pins, ensuring predictable and fail-safe behavior. - What is the purpose of the silent mode in the TJA1441AT/0Z?
The silent mode allows for node diagnosis and failure containment without disrupting the CAN bus. - What are the package options available for the TJA1441AT/0Z?
The component is available in SO8 and leadless HVSON8 packages. - What is the significance of AEC-Q100 Grade 1 qualification for the TJA1441AT/0Z?
This qualification ensures the component meets stringent automotive reliability and performance standards. - How does the TJA1441AT/0Z protect against electrostatic discharges?
The component has high ESD handling capability on the bus pins (8 kV IEC and HBM). - What are some common applications of the TJA1441AT/0Z?
It is used in automotive networks, industrial automation, medical devices, and other applications requiring robust CAN communication. - How does the TJA1441D variant differ from the TJA1441A variant?
The TJA1441D has a dedicated input for switching to a very low-current Off mode and disengaging from the bus, while the TJA1441A has a VIO input for interfacing with microcontrollers.
