Overview
The TJA1051T/3,112 is a high-speed Controller Area Network (CAN) transceiver produced by NXP USA Inc. This component is designed to provide an interface between a CAN protocol controller and the physical two-wire CAN bus, making it an essential part of automotive and industrial communication systems. It belongs to the third generation of high-speed CAN transceivers, offering significant improvements in ElectroMagnetic Compatibility (EMC) and ElectroStatic Discharge (ESD) performance compared to earlier generations.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| VCC supply voltage | 4.5 | 5.5 | V | ||
| VIO supply voltage on pin VIO | 2.8 | 5.5 | V | ||
| ICC supply current (Silent mode) | 0.1 | 1 | 2.5 | mA | |
| ICC supply current (Normal mode, bus recessive) | 2.5 | 5 | 10 | mA | |
| ICC supply current (Normal mode, bus dominant) | 20 | 50 | 70 | mA | |
| Operating Temperature | -40 | 125 | °C | ||
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | ||||
| Mounting Type | Surface Mount | ||||
| Receiver Hysteresis | 120 | mV | |||
| ESD protection | IEC 61000-4-2 at pins CANH and CANL | -8 | +8 | kV |
Key Features
- High-speed CAN transceiver compliant with ISO 11898-2:2016 and SAE J2284-1 to SAE J2284-5 standards.
- Supports data rates up to 5 Mbit/s in the CAN FD fast phase.
- Suitable for 12 V and 24 V systems.
- Low ElectroMagnetic Emission (EME) and high ElectroMagnetic Immunity (EMI).
- Functional behavior predictable under all supply conditions; disengages from the bus when not powered up.
- High ElectroStatic Discharge (ESD) handling capability on the bus pins.
- Bus pins protected against transients in automotive environments.
- Transmit Data (TXD) dominant time-out function and undervoltage detection on pins VCC and VIO.
- Thermally protected.
- Supports Normal and Silent operating modes, with an additional Off mode available in some versions.
Applications
The TJA1051T/3,112 is optimized for use in various automotive and industrial applications, including:
- Automotive networks requiring high-speed CAN communication.
- Industrial control systems that need reliable and robust communication interfaces.
- Nodes in HS-CAN networks that do not require a standby mode with wake-up capability via the bus.
Q & A
- What is the primary function of the TJA1051T/3,112?
The TJA1051T/3,112 is a high-speed CAN transceiver that provides an interface between a CAN protocol controller and the physical two-wire CAN bus.
- What are the key standards that the TJA1051T/3,112 complies with?
The TJA1051T/3,112 complies with ISO 11898-2:2016 and SAE J2284-1 to SAE J2284-5 standards.
- What is the operating voltage range for the TJA1051T/3,112?
The operating voltage range for the TJA1051T/3,112 is 4.5 V to 5.5 V for VCC and 2.8 V to 5.5 V for VIO.
- What is the maximum data rate supported by the TJA1051T/3,112?
The TJA1051T/3,112 supports data rates up to 5 Mbit/s in the CAN FD fast phase.
- What kind of protection does the TJA1051T/3,112 offer?
The TJA1051T/3,112 offers high ElectroStatic Discharge (ESD) handling capability, bus pins protected against transients, and thermal protection.
- What are the operating modes of the TJA1051T/3,112?
The TJA1051T/3,112 supports Normal and Silent operating modes, with an additional Off mode available in some versions.
- What is the package type of the TJA1051T/3,112?
The TJA1051T/3,112 comes in an 8-SOIC (0.154", 3.90mm Width) package.
- Is the TJA1051T/3,112 RoHS compliant?
Yes, the TJA1051T/3,112 is lead-free and RoHS compliant.
- What is the operating temperature range for the TJA1051T/3,112?
The operating temperature range for the TJA1051T/3,112 is -40°C to 125°C.
- What are some typical applications of the TJA1051T/3,112?
The TJA1051T/3,112 is used in automotive networks, industrial control systems, and other applications requiring high-speed CAN communication.
