Overview
The TJA1044VTKZ is a high-speed Controller Area Network (CAN) transceiver developed by NXP Semiconductors. It is part of the Mantis family of CAN transceivers, designed to provide an interface between a CAN protocol controller and the physical two-wire CAN bus. This component is particularly optimized for 12 V automotive applications, offering significant improvements over previous generations of NXP's CAN transceivers.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage (VCC) | 4.5 | 5.5 | V | ||
| Standby Undervoltage Detection Voltage (Vuvd(stb)) | 3.54 | 4.3 | V | ||
| Switch-off Undervoltage Detection Voltage (Vuvd(swoff)) | 1.32 | 2.43 | V | ||
| Supply Current in Standby Mode | VTXD = VCC | -1015 | μA | ||
| Supply Current in Normal Mode (Recessive) | VTXD = VIO | 2.5 | 10 | mA | |
| Data Rate | Up to 1 Mbit/s (TJA1044T), Up to 5 Mbit/s (CAN FD) | Mbit/s |
Key Features
- Fully compliant with ISO 11898-2:2016, SAE J2284-1 to SAE J2284-5, and SAE J1939-14 standards.
- Very low-current Standby mode with local and bus wake-up capability.
- AEC-Q100 qualified for automotive applications.
- Dark green product (halogen free and RoHS compliant).
- Variants with a VIO pin allow direct interfacing with 3.3 V to 5 V microcontrollers.
- Thermally protected.
- Ideal passive behavior to the CAN bus when the supply voltage is off.
- No common mode choke required for bus wake-up in low-power mode.
Applications
The TJA1044VTKZ is primarily designed for high-speed CAN applications in the automotive industry. It is suitable for use in various automotive systems that require reliable and efficient communication over the CAN bus, such as engine control units, transmission control units, and other vehicle network nodes.
Q & A
- What is the TJA1044VTKZ used for?
The TJA1044VTKZ is a high-speed CAN transceiver used to provide an interface between a CAN protocol controller and the physical two-wire CAN bus, particularly in automotive applications.
- What are the key standards it complies with?
The TJA1044VTKZ complies with ISO 11898-2:2016, SAE J2284-1 to SAE J2284-5, and SAE J1939-14 standards.
- What is the maximum data rate supported by the TJA1044VTKZ?
The TJA1044VTKZ supports data rates up to 1 Mbit/s (TJA1044T) and up to 5 Mbit/s in CAN FD mode.
- Is the TJA1044VTKZ suitable for low-power applications?
Yes, it features a very low-current Standby mode with local and bus wake-up capability.
- Is the TJA1044VTKZ environmentally friendly?
Yes, it is a dark green product, which means it is halogen free and RoHS compliant.
- Can the TJA1044VTKZ be used with different voltage microcontrollers?
Yes, variants with a VIO pin can interface directly with 3.3 V to 5 V microcontrollers.
- Does the TJA1044VTKZ require a common mode choke for bus wake-up?
No, it does not require a common mode choke for bus wake-up in low-power mode.
- What is the thermal protection feature of the TJA1044VTKZ?
The TJA1044VTKZ is thermally protected, ensuring safe operation under various thermal conditions.
- Is the TJA1044VTKZ AEC-Q100 qualified?
Yes, the TJA1044VTKZ is AEC-Q100 qualified, making it suitable for automotive applications.
- What is the typical supply current in Standby mode?
The typical supply current in Standby mode is around -1015 μA.
