Overview
The TJA1020T/N,112 is a Local Interconnect Network (LIN) transceiver produced by NXP USA Inc. This component serves as the interface between the LIN master/slave protocol controller and the physical bus in automotive and other sub-networks. It is designed to support baud rates from 2.4 to 20 kbps, making it suitable for various in-vehicle network applications.
Key Specifications
| Parameter | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|
| VBAT supply voltage on pin BAT | 5 | 12 | 27 | V |
| IBAT supply current on pin BAT in sleep mode | 1 | 3 | 8 | µA |
| IBAT supply current on pin BAT in standby mode; bus recessive | 100 | 400 | 1000 | µA |
| IBAT supply current on pin BAT in normal slope mode; bus recessive | 100 | 400 | 1000 | µA |
| IBAT supply current on pin BAT in normal slope mode; bus dominant | 1 | 3.5 | 8.0 | mA |
| VLIN DC voltage on pin LIN | -27 | +40 | V | |
| Tvj virtual junction temperature | -40 | +150 | °C |
Key Features
- Baud rate up to 20 kbps
- Very low ElectroMagnetic Emission (EME) and high ElectroMagnetic Immunity (EMI)
- Low slope mode for further reduction of EME
- Passive behavior in unpowered state
- Input levels compatible with 3.3 and 5 V devices
- Integrated termination resistor for Network (LIN) slave applications
- Wake-up source recognition (local or remote)
- Supports K-line like functions
- Low power management with very low current consumption in sleep mode
- Transmit data (TXD) dominant time-out function
- Bus terminal and battery pin protected against transients
- Bus terminal short-circuit proof to battery and ground
- Thermally protected
Applications
- Automotive network systems: as a node in the LIN network for communication within the vehicle
- Electronic Control Units (ECUs): to provide stable power and communication interfaces for ECUs and their peripheral devices
- Sensor reporting and datacom networking applications
- Compact node development: suitable for space-constrained applications due to its small package size (8-pin SOIC)
Q & A
- What is the primary function of the TJA1020T/N,112? The TJA1020T/N,112 is a LIN transceiver that acts as the interface between the LIN master/slave protocol controller and the physical bus in automotive and other sub-networks.
- What are the supported baud rates for the TJA1020T/N,112? The component supports baud rates from 2.4 to 20 kbps.
- What is the supply voltage range for the TJA1020T/N,112? The supply voltage range is from 5 V to 27 V.
- Does the TJA1020T/N,112 have built-in protection features? Yes, it includes protections such as transmit data dominant time-out function, bus terminal and battery pin protection against transients, and thermal protection.
- How does the TJA1020T/N,112 manage power consumption? It has low power management with very low current consumption in sleep mode and supports standby and sleep modes to reduce power consumption.
- Is the TJA1020T/N,112 compatible with K-line communication? Yes, it supports K-line like functions.
- What is the package type of the TJA1020T/N,112? The component is packaged in an 8-pin SOIC.
- What are some common applications of the TJA1020T/N,112? It is used in automotive network systems, Electronic Control Units (ECUs), sensor reporting, and datacom networking applications.
- Does the TJA1020T/N,112 have wake-up functionality? Yes, it supports wake-up via the LIN bus with local and remote wake-up recognition.
- Is the TJA1020T/N,112 compliant with any specific standards? It is designed to meet various automotive and industrial standards, including those related to EMI and EME.
