Overview
The TJA1448AT/0Z is a dual high-speed CAN (Controller Area Network) transceiver developed by NXP USA Inc. This component is designed to serve as a simple replacement for existing high-speed Classical CAN and CAN FD transceivers, such as the TJA1059. It is compliant with various industry standards including ISO 11898-2:2016, SAE J2284-1 to SAE J2284-5, and SAE J1939-14. The TJA1448AT/0Z is particularly suited for automotive and industrial applications where reliable and high-speed data communication is crucial.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| VCC supply voltage | 4.5 | 5.5 | V | ||
| ICC supply current (Normal mode) | Both channels recessive | 8 | 14 | mA | |
| ICC supply current (Normal mode) | One channel dominant | 42 | 67 | mA | |
| ICC supply current (Normal mode) | Both channels dominant | 77 | 120 | mA | |
| ICC supply current (Standby mode) | 2 | μA | |||
| Undervoltage detection voltage on pin VCC (Standby) | 4 | 4.5 | V | ||
| Undervoltage hysteresis voltage on pin VCC (Standby) | 50 | mV | |||
| Operating temperature range | -40 | +150 | °C |
Key Features
- Compliance with Industry Standards: Compliant with ISO 11898-2:2016, SAE J2284-1 to SAE J2284-5, and SAE J1939-14.
- High-Speed Data Rates: Supports standard CAN and CAN FD data bit rates up to 5 Mbit/s.
- Low Electromagnetic Emission and High Electromagnetic Immunity: Designed to minimize EME and maximize EMI.
- AEC-Q100 Grade 1 Qualified: Ensures reliability and performance in automotive environments.
- VIO Input for Microcontroller Interfacing: Allows direct interfacing with 3.3 V and 5 V-supplied microcontrollers.
- Low-Power Standby Mode: Very low-current Standby mode with host and bus wake-up capability.
- Wake-Up Features: CAN wake-up receiver powered by VIO, RXD wake-up latching, and short wake-up pattern filter time.
- Protection Features: High ESD handling capability on bus pins, bus pins protected against transients, and transmit data dominant time-out function.
- Thermal Protection: Thermally protected to ensure safe operation.
- Predictable and Fail-Safe Behavior: Defined behavior below undervoltage detection thresholds and internal biasing of TXD and mode selection input pins.
Applications
- Automotive Systems: Ideal for use in vehicle networks, including body control modules, engine control units, and gateway applications.
- Industrial Automation: Suitable for industrial control systems, robotics, and other high-reliability industrial applications.
- Embedded Systems: Can be used in various embedded systems requiring high-speed CAN or CAN FD communication.
Q & A
- What is the TJA1448AT/0Z used for?
The TJA1448AT/0Z is a dual high-speed CAN transceiver used for interfacing between a Controller Area Network (CAN) or CAN FD and a microcontroller in various applications, particularly in automotive and industrial environments.
- What are the key industry standards it complies with?
The TJA1448AT/0Z complies with ISO 11898-2:2016, SAE J2284-1 to SAE J2284-5, and SAE J1939-14.
- What is the maximum data rate supported by the TJA1448AT/0Z?
The TJA1448AT/0Z supports standard CAN and CAN FD data bit rates up to 5 Mbit/s.
- What is the purpose of the VIO input pin?
The VIO input pin allows for direct interfacing with 3.3 V and 5 V-supplied microcontrollers.
- How does the TJA1448AT/0Z manage power in Standby mode?
The TJA1448AT/0Z features a very low-current Standby mode with host and bus wake-up capability, allowing for efficient power management.
- What protection features does the TJA1448AT/0Z have?
The TJA1448AT/0Z includes high ESD handling capability on bus pins, protection against transients, and a transmit data dominant time-out function.
- Is the TJA1448AT/0Z thermally protected?
Yes, the TJA1448AT/0Z is thermally protected to ensure safe operation.
- What is the operating temperature range of the TJA1448AT/0Z?
The operating temperature range is from -40°C to +150°C.
- What packaging options are available for the TJA1448AT/0Z?
The TJA1448AT/0Z is available in SO14 and HVSON14 packages.
- Is the TJA1448AT/0Z AEC-Q100 qualified?
Yes, the TJA1448AT/0Z is AEC-Q100 Grade 1 qualified, ensuring reliability and performance in automotive environments.
