ZHCSK68B August 2019 – June 2022 TLIN1028-Q1
PRODUCTION DATA
The TLIN1028-Q1 LIN transceiver is a 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 with integrated wake-up and protection features. The LIN bus is a single-wire, bidirectional bus that typically is used in low-speed in-vehicle networks with data rates that range up to 20 kbps. The LIN receiver works up to 100 kbps supporting in-line programming. The device converts the LIN protocol data stream on the TXD input into a LIN bus signal using a current-limited wave-shaping driver which reduces electromagnetic emissions (EME). 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.
Ultra-low current consumption is possible using the sleep mode. The TLIN1028-Q1 provides two methods to wake up from sleep mode: EN pin and LIN bus. The device integrates a low dropout voltage regulator with a wide input from VSUP providing 5 V ±2% or 3.3 V ±2% with up to 125 mA of current depending upon system implementation. nRST is asserted high when VCC increases above UVCC and stays high as long as VCC is above this threshold.