Overview
The TJA1044VTZ, produced by NXP USA Inc., is a high-speed CAN (Controller Area Network) transceiver that belongs to the Mantis family of CAN transceivers. It is designed to provide an interface between a CAN protocol controller and the physical two-wire CAN bus, making it ideal for high-speed CAN applications in the automotive industry. The transceiver offers advanced features such as a very low-current Standby mode with bus wake-up capability, excellent ElectroMagnetic Compatibility (EMC) performance, and compliance with ISO 11898-2:2016 and SAE J2284-1 to SAE J2284-5 standards.
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 | 3.4 | V | ||
| Standby Mode Current | VTXD = VCC | -1015 | μA | ||
| Normal Mode Supply Current (ICC) | Recessive; VTXD = VIO | 2.5 | 10 | mA | |
| Data Rate | Up to 1 Mbit/s (TJA1044T), Up to 5 Mbit/s (CAN FD) |
Key Features
- Ideal passive behavior to the CAN bus when the supply voltage is off.
- Very low-current Standby mode with local and bus wake-up capability.
- Excellent EMC performance, even without a common mode choke.
- Compliance with ISO 11898-2:2016, SAE J2284-1 to SAE J2284-5, and SAE J1939-14 standards.
- AEC-Q100 qualified and RoHS compliant.
- Thermally protected.
- Variants with a VIO pin allow for direct interfacing with microcontrollers having supply voltages from 3.3 V to 5 V.
Applications
The TJA1044VTZ is primarily designed for high-speed CAN applications in the automotive industry. It is suitable for various nodes in HS-CAN networks that require low-power modes with wake-up capability via the CAN bus. This includes applications in vehicle networks, automotive control systems, and any other high-speed CAN communication environments.
Q & A
- What is the TJA1044VTZ used for? The TJA1044VTZ is a high-speed CAN transceiver used to interface between a CAN protocol controller and the physical two-wire CAN bus in automotive applications.
- What are the key features of the TJA1044VTZ? Key features include a very low-current Standby mode, excellent EMC performance, and compliance with various automotive standards.
- What are the supply voltage requirements for the TJA1044VTZ? The supply voltage (VCC) ranges from 4.5 V to 5.5 V.
- What is the maximum data rate supported by the TJA1044VTZ? The TJA1044VTZ supports data rates up to 1 Mbit/s (TJA1044T) and up to 5 Mbit/s in CAN FD mode.
- Is the TJA1044VTZ compliant with automotive standards? Yes, it is compliant with ISO 11898-2:2016, SAE J2284-1 to SAE J2284-5, and SAE J1939-14 standards.
- What is the purpose of the VIO pin in the TJA1044VTZ? The VIO pin allows for direct interfacing with microcontrollers having supply voltages from 3.3 V to 5 V.
- Does the TJA1044VTZ have thermal protection? Yes, the TJA1044VTZ is thermally protected.
- Is the TJA1044VTZ RoHS compliant? Yes, the TJA1044VTZ is RoHS compliant and also AEC-Q100 qualified.
- What is the Standby mode current of the TJA1044VTZ? The Standby mode current is typically around -1015 μA.
- Can the TJA1044VTZ wake up from Standby mode via the CAN bus? Yes, the TJA1044VTZ has bus wake-up capability from the Standby mode.
