The TLIN1024A-Q1 device is a Quad Local Interconnect Network (LIN) physical layer transceiver, compliant to LIN 2.0, LIN 2.1, LIN 2.2, LIN 2.2A and ISO/DIS 17987–4 standards, with integrated wake-up and protection features. The device has two separate dual LIN transceiver blocks. V_SUP1/2 provides power to the separate dual transceiver blocks. The LIN bus is a single wire bidirectional bus typically used for low speed in-vehicle networks using data rates up to 20 kbps. The device's LIN receivers work up to 100 kbps supporting in-line programming. The LIN protocol output data stream on the TXD in converted by the device into LIN bus signal using a current-limited wave shaping driver as outlined by the LIN physical layer specification. The receiver converts the data stream to logic level signals that are sent to the microprocessor through the open-drain RXD pin. The LIN bus has two states: dominant state (voltage near ground) and recessive state (voltage near battery). In the recessive state, the LIN bus is pulled high by the internal pull-up resistor (45 kΩ) and a series diode. No external pull-up components are required for responder node applications. Commander node applications require an external pull-up resistor (1 kΩ) plus a series diode per the LIN specification.

The device is designed to support 12-V applications with a wide input voltage operating range and also supports low-power sleep mode. The device also provides two methods to wake-up: EN pin and from the LIN bus.

The TLIN1024A-Q1 integrates ESD protection and fault protection which allow for a reduction in the required external components in the applications. In the event of a ground shift or supply voltage disconnection, the device prevents back-feed current through LIN to the supply input. The device also includes undervoltage detection, temperature shutdown protection, and loss-of-ground protection.

V_SUP1 and GND1 supplies transceivers 1 and 2 while V_SUP2 and GND2 supplies transceiver 3 and 4. The device is part of the LIN family that includes the TLIN1022A and TLIN1029A LIN transceivers.