What the TLIN1022DRQ1 does and where it fits
The TLIN1022DRQ1 is a dual LIN transceiver from Texas Instruments, integrating two independent driver/receiver pairs in a single 14-SOIC package. It handles the physical-layer translation between a LIN bus and the UART or SCI port of a microcontroller, supporting data rates up to 20 kbps. Rated for automotive environments with AEC-Q100 qualification and an operating temperature range of -40°C to 125°C, it suits body-electronics nodes like door modules, seat controllers, and HVAC actuators that communicate over a single-wire LIN bus. The supply voltage range of 4 V to 36 V covers both nominal 12 V and 24 V vehicle electrical systems, with headroom for load-dump transients.
Key parametric decisions for the BOM
Two drivers and two receivers mean this single IC can serve two independent LIN channels — useful for a module that talks to both a master ECU and a local sensor node without a second transceiver. The 50 mV receiver hysteresis filters out bus noise and prevents false edge triggering on a twisted or long harness, which matters in the electrically noisy environment of an engine bay. Surface-mount 14-SOIC (3.90 mm width) is a common footprint; the tape-and-reel packaging option aligns with automated pick-and-place assembly.
Lifecycle and compliance
AEC-Q100 Grade 1 qualification means the part has passed the full suite of automotive stress tests — temperature cycling, ESD, latch-up — and is accepted by Tier-1 automotive suppliers without additional qualification paperwork.