General description
●The TJA1021 is the interface between the Local Interconnect Network (LIN) master/slave protocol controller and the physical bus in a LIN. It is primarily intended for in-vehicle sub-networks using baud rates from 1 kBd up to 20 kBd and is LIN 2.1/SAE J2602 compliant. The TJA1021 is pin-to-pin compatible with the TJA1020 with an improved ElectroStatic Discharge (ESD) specification.
●Features and benefits
●General
●LIN 2.1/SAE J2602 compliant
●Baud rate up to 20 kBd
●Very low ElectroMagnetic Emission (EME)
●High ElectroMagnetic Immunity (EMI)
●Passive behavior in unpowered state
●Input levels compatible with 3.3 V and 5 V devices
●Integrated termination resistor for LIN slave applications
●Wake-up source recognition (local or remote)
●Supports K-line like functions
●Pin-to-pin compatible with TJA1020
●Low power management
●Very low current consumption in Sleep mode with local and remote wake-up
●Protection mechanisms
●High ESD robustness: 6 kV 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
