Overview
The TJA1442ATK/0Z is a high-speed CAN (Controller Area Network) transceiver produced by NXP USA Inc. It is designed to provide an interface between a CAN protocol controller and the physical two-wire CAN bus, making it suitable for various automotive and industrial applications. This transceiver is part of the TJA144x family, which offers pin compatibility with classical CAN and CAN FD transceivers, facilitating easy upgrades and replacements.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VCC Supply Voltage | 4.5 | - | 5.5 | V |
| VIO Supply Voltage (TJA1442A) | 2.95 | - | 5.5 | V |
| Standby Undervoltage Detection Voltage | 4 | - | 4.5 | V |
| Standby Undervoltage Hysteresis Voltage | 50 | - | - | mV |
| Supply Current in Standby Mode (TJA1442A) | - | - | 2 | µA |
| Supply Current in Standby Mode (TJA1442B) | 8 | - | 12 | µA |
| Operating Temperature Range | -40 | - | 150 | °C |
| Package Type | - | - | HVSON8 | - |
Key Features
- Compliant with ISO 11898-2:2016, SAE J2284-1 to SAE J2284-5, and SAE J1939-14 standards.
- Supports standard CAN and CAN FD data bit rates up to 5 Mbit/s.
- Low Electromagnetic Emission (EME) and high Electromagnetic Immunity (EMI).
- AEC-Q100 Grade 1 qualified for automotive applications.
- VIO input for interfacing with 3.3 V to 5 V microcontrollers (TJA1442A variant).
- Standby mode with bus wake-up capability.
- Ideal passive behavior to the CAN bus when the supply voltage is off.
Applications
The TJA1442ATK/0Z is primarily used in automotive and industrial applications where high-speed CAN communication is required. It is suitable for various nodes in CAN networks, including those that require low-power modes. Specific use cases include vehicle networking, industrial automation, and any system requiring reliable and high-speed CAN communication.
Q & A
- What is the TJA1442ATK/0Z used for? The TJA1442ATK/0Z is a high-speed CAN transceiver used to interface between a CAN protocol controller and the physical two-wire CAN bus.
- What are the key standards it complies with? It 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 TJA1442ATK/0Z? It supports data bit rates up to 5 Mbit/s for both standard CAN and CAN FD.
- What are the operating temperature ranges for the TJA1442ATK/0Z? The operating temperature range is from -40 °C to +150 °C.
- What package types are available for the TJA1442ATK/0Z? It is available in the HVSON8 package type.
- Does the TJA1442ATK/0Z support low-power modes? Yes, it features a Standby mode with bus wake-up capability.
- Is the TJA1442ATK/0Z qualified for automotive applications? Yes, it is AEC-Q100 Grade 1 qualified.
- Can the TJA1442ATK/0Z be used with microcontrollers of different supply voltages? Yes, the TJA1442A variant has a VIO input for interfacing with 3.3 V to 5 V microcontrollers.
- What is the significance of the VIO pin in the TJA1442A variant? The VIO pin allows for direct interfacing with microcontrollers that have supply voltages ranging from 3.3 V to 5 V.
- How does the TJA1442ATK/0Z behave when the supply voltage is off? It exhibits ideal passive behavior to the CAN bus when the supply voltage is off.
