Automotive LIN transceiver with integrated LDO voltage regulator

Texas Instruments TLIN1028S-Q1 Automotive LIN Transceiver is compliant to LIN 2.2A ISO/DIS 17987-4.2 standards, with an integrated LDO voltage regulator. LIN is a single-wire bidirectional bus typically employed for low-speed in-vehicle networks utilising data rates up to 20kbps. The LIN receiver supports data rates up to 100kbps for end-of-line programming. The device converts the LIN protocol data stream on the TXD input into a LIN bus signal. The receiver converts the data stream to logic level signals that are transmitted to the microprocessor through the open-drain RXD pin.

The device offers a 3.3V or 5V rail with up to 70mA of current to power microprocessors, sensors, or other devices, lessening system complexity. The device has an optimised current-limited, wave-shaping driver, which reduces EME. Ultra-low current consumption is possible employing the sleep mode, which provides wake up via LIN bus or pin. The LIN bus has two states, the dominant state (voltage near ground) and recessive state (voltage near the battery). In the recessive state, the LIN bus is pulled high by the internal pull-up resistor (45kOhm) and a series diode. Slave applications require no external pull-up components. Master applications require an external pull-up resistor (1kOhm) plus a series diode per the LIN specification.

The devices are AEC-Q100 qualified for automotive applications.

Typical applications include body electronics and lighting, and hybrid, electric and powertrain systems, automotive infotainment and cluster appliances.