TLIN10285DRQ1 from Texas Instruments, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	VSUP	power_in	Device high-voltage supply input, connected to the automotive battery in series with an external reverse-blocking diode. Operational supply 5.5 V to 36 V; nominal 5.5 V to 28 V; absolute maximum -0.3 V to 42 V. Requires a 100 nF supply-bypass capacitor.
2	EN	input	Enable input (digital, high-voltage tolerant). Drives device mode transitions: EN = VCC selects normal mode, EN = 0 V selects standby/sleep modes. Logic input range 0 V to 5.25 V (5 V logic) / 3.465 V (3.3 V logic); absolute max -0.3 V to 6 V.
3	GND	power_in	Device ground reference. When the thermal pad is present (DRB/DDA packages), it must be soldered to the ground plane; this D-package variant has no thermal pad.
4	LIN	bidirectional	LIN bus single-wire transmitter and receiver terminal (high-voltage I/O). Supports LIN 2.2A / ISO/DIS 17987-4 signaling with ±58 V bus fault protection and slew-shaped output for reduced EME. Bus operating range 0 V to 28 V.
5	RXD	output	RXD open-drain output that reports the state of the LIN bus voltage to the microcontroller UART receive pin. Requires an external pull-up to VCC (2 kΩ to 10 kΩ typical); VOL ≤ 0.2 V at IOL = 1.5 mA. Reset/RXD open-drain current rated ±5 mA absolute maximum.
6	TXD	input	TXD digital input from the microcontroller UART transmit pin that controls the state of the LIN bus output driver (low on TXD = dominant on LIN). Logic input range 0 V to 5.25 V (5 V logic) / 3.465 V (3.3 V logic); dominant time-out protection is provided to prevent bus lock-up.
7	nRST	output	Active-low reset output (open-drain style, VnRST rated -0.3 V to VCC + 0.3 V). Asserts low on VCC undervoltage or thermal-shutdown events to hold the host microcontroller in reset; deasserts after VCC returns above the UV rising threshold.
8	VCC	power_out	Regulated output from the integrated LDO. For the TLIN10285 (5 V) variant in the D package: 5 V ± 2 % up to 70 mA of load (ICCOUT). Requires 1.5 µF (20 µA to full load) or 10 µF (no load to full load) bypass with ESR 0.001 Ω to 2 Ω.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	SOIC-8
Category	Comm/UART
Pins	8

Ordering variants

Same part, different packaging or reel option.

TLIN10285DRQ1D
TLIN10285DRQ1
TLIN10285DRQ1DRB
TLIN10285DRQ1DRBR
TLIN10285DRQ1DDA
TLIN10285DRQ1DDAR

CAD (KiCad official)

Symbol: TLIN10285DRQ1
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOIC-8 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`tlin10285drq1.step`	122 KB	You want the bare part, or you mark your own boards.
`tlin10285drq1-etched.step`	2.5 MB	You want the part with `TLIN10285DRQ1` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 609 faces against 147 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

Datasheet: Texas Instruments datasheet (54 pp, sha256 e0f338741b4b46aa, retrieved 2026-08-17, tier: lcsc)
Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF