TLIN1021ADRQ1

The TLIN1021A-Q1 is a Local Interconnect Network (LIN) physical layer transceiver. LIN is a low-speed Universal Asynchronous Receiver Transmitter (UART) communication protocol that supports automotive in-vehicle networks. The TLIN1021A-Q1 transmitter supports a data rate of up to 20 kbps. The transceiver controls the state of the LIN bus through the TXD pin and reports the bus state through its open-drain RXD output pin. The device features a current-limiting waveform shaping driver to reduce Electromagnetic Emission (EME). The TLIN1021A-Q1 is designed to support 12V applications and has a wide input operating voltage range. The device supports a low-power sleep mode and can be awakened from the low-power mode through the wake-up function from the LIN, WAKE pin, or EN pin. The device can selectively enable various power supplies that may exist on the node through the TLIN1021A-Q1 INH output pin, thereby reducing battery current consumption at the overall system level. The TLIN1021A-Q1 integrates a resistor for LIN responder node applications that provides ESD protection and fault protection, reducing the number of external components in the application. Once a ground drift or power supply voltage disconnection occurs, the device prevents feedback current from flowing through the LIN to the power input. The TLIN1021A-Q1 also includes undervoltage detection, overheat shutdown protection, and ground fault protection functions. Once a fault condition occurs, the transmitter will immediately shut down and remain off until the fault is eliminated.

Applications

• Body electronics and lighting
• Automotive infotainment and instrument clusters
• Hybrid electric vehicles and powertrain systems
• Industrial transportation

Key features

• AEC-Q100 (Grade 1) qualified for automotive applications
• Compliant with LIN 2.0, LIN 2.1, LIN 2.2, LIN 2.2A, and ISO17987–4 Electrical Physical Layer (EPL) specifications
• Compliant with SAE J2602-1 LIN network standard for automotive applications
• Functional Safety capable
• Documentation available to aid functional safety system design
• Wide operating input voltage range
• Integrated 45kΩ LIN pull-up resistor
• System-level power consumption control via INH pin
• Unpowered/power-off glitch-free operation on LIN bus and RXD output
• Protection features: ±45V LIN bus fault tolerance, 42V load dump support, undervoltage protection on VSUP, TXD dominant state timeout, thermal shutdown, system-level unpowered node or ground disconnect fault protection
• Available in 8-pin SOIC, VSON with wettable flanks, and SOT23 packages