NXP Semiconductors TJA1021 LIN Transceivers

NXP Semiconductors TJA1021 LIN Transceivers interface between the LIN commander/responder protocol controller and the physical bus in a Local Interconnect Network (LIN). TJA1021 is LIN 2.0, LIN 2.1, LIN 2.2, LIN 2.2A, SAE J2602, and ISO 17987-4:2016 (12V) compliant while providing optimum ElectroMagnetic Compatibility (EMC) performance due to the LIN output wave shaping. The transceivers provide transmission speeds from 1kBd to 20kBd (maximum) and are pin-to-pin compatible with the TJA1020 and MC33662(B) series. In sleep and failure modes, power consumption is at a minimum.

Features

LIN 2.x/ISO 17987-4:2016 (12V)/SAE J2602 compliant
Baud rate up to 20kBd (/20 and B variants)
Very low ElectroMagnetic Emission (EME)
High Electromagnetic Immunity (EMI)
Passive behavior in an unpowered state
Input levels compatible with 3.3V and 5V devices
Integrated termination resistor for LIN responder applications
Wake-up source recognition (local or remote)
K-line compatible
Pin-to-pin compatible with TJA1020 and MC33662(B)
Available in SO8 and HVSON8 packages
Leadless HVSON8 package (3.0mm²) with low thermal resistance supporting Automated Optical Inspection (AOI) capability

Low power management, very low current consumption in Sleep mode with local and remote wake-up
Protections
- High ESD robustness: ±6kV according to IEC 61000-4-2 for pins LIN, VBAT, and WAKE_N
- Transmit data (TXD) dominant time-out function
- Bus terminal and battery pin protected against transients in the automotive environment (ISO 7637)
- Bus terminal short-circuit proof to battery and ground
- Thermally protected
Pin-to-pin compatible with the TJA1020 and MC33662(B)

Specifications

Battery supply current
- 2µA to 10µA in sleep mode
- Standby mode
  - 150µA to 1000µA bus recessive
  - 300µA to 1200µA bus dominant
- Normal mode
  - 300µA to 1600µA bus recessive
  - 1mA to 4mA bus dominant