Overview
The TJA1020T/CM,118 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 vehicle sub-networks. It is designed to support baud rates from 2.4 to 20 Kbaud, making it suitable for various automotive and industrial applications. The TJA1020T/CM,118 is known for its low electromagnetic emission (EME) and high electromagnetic immunity (EMI), ensuring reliable communication in noisy environments.
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 | |
| Vesd(HBM) electrostatic discharge voltage; human body model; pins NWAKE, LIN and BAT | -4 | +4 | kV |
Key Features
- Baud rate up to 20 Kbaud
- Very low ElectroMagnetic Emission (EME)
- High ElectroMagnetic Immunity (EMI)
- Low slope mode for further reduction of EME
- Passive behaviour 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
- Very low current consumption in sleep mode with local and remote wake-up
- 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
The TJA1020T/CM,118 is primarily intended for in-vehicle sub-networks, including automotive systems such as door modules, seat control, and lighting systems. It is also suitable for industrial applications where reliable, low-EME communication is required.
Q & A
- What is the maximum baud rate supported by the TJA1020T/CM,118?
The TJA1020T/CM,118 supports baud rates up to 20 Kbaud. - What are the key benefits of the low slope mode in the TJA1020T/CM,118?
The low slope mode further reduces the already very low electromagnetic emission (EME) in normal slope mode. - How does the TJA1020T/CM,118 protect against electromagnetic interference?
The component features high electromagnetic immunity (EMI) to protect against electromagnetic interference. - What is the typical supply current in sleep mode for the TJA1020T/CM,118?
The typical supply current in sleep mode is 3 µA. - Is the TJA1020T/CM,118 compatible with 3.3 and 5 V devices?
Yes, the input levels of the TJA1020T/CM,118 are compatible with both 3.3 and 5 V devices. - What kind of protection does the TJA1020T/CM,118 offer against transients and short circuits?
The component offers protection against transients on the bus terminal and battery pin, and it is short-circuit proof to battery and ground. - Does the TJA1020T/CM,118 support wake-up functions?
Yes, it supports wake-up source recognition (local or remote). - What is the purpose of the integrated termination resistor in the TJA1020T/CM,118?
The integrated termination resistor is for Network (LIN) slave applications. - Is the TJA1020T/CM,118 thermally protected?
Yes, the component is thermally protected. - What are some common applications of the TJA1020T/CM,118?
The TJA1020T/CM,118 is commonly used in in-vehicle sub-networks and industrial applications requiring reliable, low-EME communication.
