Overview
The TJA1051TK/3/1J, produced by NXP USA Inc., is a high-speed CAN (Controller Area Network) transceiver designed to provide an interface between a CAN protocol controller and the physical two-wire CAN bus. This component is part of the third generation of high-speed CAN transceivers from NXP, offering significant improvements in ElectroMagnetic Compatibility (EMC) and ElectroStatic Discharge (ESD) performance compared to earlier models like the TJA1050.
It is compliant with ISO 11898-2:2016 and SAE J2284-1 to SAE J2284-5 standards, enabling reliable communication in CAN FD fast phase at data rates up to 5 Mbit/s. The TJA1051TK/3/1J is suitable for use in 12 V and 24 V systems, making it an excellent choice for various high-speed CAN (HS-CAN) networks in the automotive industry.
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 | ||
| Undervoltage detection voltage on pin VCC (Vuvd(VCC)) | 3.5 | 4.5 | V | ||
| Undervoltage detection voltage on pin VIO (Vuvd(VIO)) | 1.3 | 2.0 | 2.7 | 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 | |
| IIO supply current on pin VIO (Normal/Silent mode, recessive) | VTXD = VIO - 0 V | -80 | 250 | μA | |
| IIO supply current on pin VIO (Normal/Silent mode, dominant) | VTXD = 0 V | -350 | 500 | μA | |
| Virtual junction temperature (Tvj) | -40 | 150 | °C | ||
| Electrostatic discharge voltage (VESD) at pins CANH and CANL | IEC 61000-4-2 | -8 | +8 | kV | |
| Voltage on pin CANH (VCANH) | -58 | +58 | V | ||
| Voltage on pin CANL (VCANL) | -58 | +58 | V |
Key Features
- 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).
- 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.
- Undervoltage detection on pins VCC and VIO.
- Thermally protected.
- Functional behavior predictable under all supply conditions.
- Transceiver disengages from the bus when not powered up (zero load).
- Supports Normal, Silent, and Off operating modes (Off mode available in TJA1051T/E).
Applications
The TJA1051TK/3/1J is primarily designed for high-speed CAN applications in the automotive industry. It is suitable for use in various automotive systems, including:
- Vehicle control units.
- Automotive networks requiring high-speed data transmission.
- Systems that need robust ESD and EMC performance.
- Applications where reliable communication in CAN FD fast phase is necessary.
Q & A
- What is the TJA1051TK/3/1J used for?
The TJA1051TK/3/1J 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 standards it complies with?
It complies with ISO 11898-2:2016 and SAE J2284-1 to SAE J2284-5 standards.
- What is the maximum data rate it supports?
It supports data rates up to 5 Mbit/s in the CAN FD fast phase.
- What are the supply voltage ranges for VCC and VIO?
VCC supply voltage range is 4.5 V to 5.5 V, and VIO supply voltage range is 2.8 V to 5.5 V.
- What is the operating temperature range?
The operating temperature range is -40°C to 150°C.
- Does it have ESD protection?
Yes, it has high ElectroStatic Discharge (ESD) handling capability on the bus pins.
- What are the different operating modes it supports?
It supports Normal, Silent, and Off operating modes (Off mode available in TJA1051T/E).
- Is it suitable for 12 V and 24 V systems?
Yes, it is suitable for both 12 V and 24 V systems.
- What is the package type for the TJA1051TK/3/1J?
The package type is 8-VDFN Exposed Pad.
- Does it have undervoltage detection?
Yes, it has undervoltage detection on pins VCC and VIO.
