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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
Name Last commit message Last updated
docs tx6141: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
package.json Publish 0.2.0 · Ray
pads.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
page.json tx6141: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray
README.md tx6141: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray
tx6141-etched.fit.json tx6141: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
tx6141-etched.glb tx6141: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
tx6141-etched.step tx6141: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
tx6141.glb fix footprint: SOT-89-3 -> SOT-89-5 (pad_count, 5 pins) · Ray
tx6141.kicad_mod fix footprint: SOT-89-3 -> SOT-89-5 (pad_count, 5 pins) · Ray
tx6141.kicad_sym Publish 0.1.0 · Ray
tx6141.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect an… · Ray
tx6141.step fix footprint: SOT-89-5 -> SOT-89-5 (3d refresh; body regenerated from the footprint F.Fab outline) · Ray

TX6141

XDS · LED Drivers · SOT-89-5

TX6141 from XDS, in a SOT-89-5. 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 SW output Switch node - drain of the internal power NMOS. Connects to the inductor and the freewheeling Schottky diode. Rated 1.2A max; RDS(on) typ 450 mΩ (VIN=6V-30V).
2 VSS power_in Chip ground / device return.
3 DIM input Brightness/dimming control input. Accepts PWM up to 20 kHz or analog voltage (0.5-2.5V) for linear dimming. VIH ≥ 2.5V, VIL ≤ 0.3V; internally pulled up (~500 kΩ) to ~5V so pin floats to enabled. VDIM < 0.3V disables output and enters standby. Absolute max 6V. Leave floating if dimming unused.
4 CS input Current-sense input. Connects to the low side of the external sense resistor RCS between VIN and CS. Internal comparator regulates (VIN-VCS) hysteretically between 80 mV (VCSL) and 120 mV (VCSH), giving ILED ≈ 0.1V / RCS. Input current typ 10 µA.
5 VIN power_in Supply input, 5.5V-30V operating (35V absolute max). UVLO rising ≈ 5.1V with 0.4V hysteresis; standby current ≈ 320 µA. Bypass with 22-47 µF to VSS.

Key specifications

Parameter Value
Manufacturer XDS
Package SOT-89-5
Category LED-drv
Pins 5

CAD (KiCad official)

  • Symbol: TX6141
  • Footprint: Package_TO_SOT_SMD:SOT-89-5
  • 3D model: SOT-89-5 (KiCad packages3D, STEP)
  • 3D model files: tx6141-etched.step / tx6141-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tx6141.step / tx6141.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
tx6141.step 86 KB You want the bare part, or you mark your own boards.
tx6141-etched.step 776 KB You want the part with TX6141 already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 208 faces against 26 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: XDS datasheet (9 pp, sha256 10fbde951924fecc, 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