TX6410B from XDS, in a ESOP-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	VDD	power_in	Chip supply pin. Operating range 2.5 V to 6 V; absolute max 7 V. Recommend ~4.7 µF filter capacitor placed close to VDD and GND. Quiescent current ~60 µA typ.
2	DIM	input	PWM dimming input. Logic high enables LED output; logic low turns LED output off. VIH ≥ 0.7VDD, VIL ≤ 0.3VDD. Max dimming frequency 10 kHz (≤1 kHz recommended for best linearity).
3	NC	unconnected	No connection. Leave floating.
4	LED	output	Drain of the internal 30 V, 50 mΩ NMOS; connects to the LED cathode. Absolute maximum voltage -0.3 V to 30 V. The exposed thermal pad of the ESOP-8 is internally connected to this pin.
5	CS	input	Current-sense input. Connect through an external sense resistor Rcs to GND; the LED current is set by ILED = 100 mV / Rcs (Vcs = 96/100/104 mV min/typ/max). Absolute max voltage -0.3 V to 7 V.
6	CS	input	Current-sense input (paralleled with pin 5). Both pins tie to Rcs to GND to set output current. Use short, wide traces to minimize parasitic resistance error.
7	NC	unconnected	No connection. Leave floating.
8	GND	power_in	Chip ground reference.

Key specifications

Parameter	Value
Manufacturer	XDS
Package	ESOP-8
Category	LED-drv
Pins	8

CAD (KiCad official)

Symbol: TX6410B
Footprint: Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm
3D model: ESOP-8 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`tx6410b.step`	193 KB	You want the bare part, or you mark your own boards.
`tx6410b-etched.step`	1.3 MB	You want the part with `TX6410B` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 330 faces against 63 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 (6 pp, sha256 7971d684c21714c4, retrieved 2026-08-17, tier: lcsc)
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