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Contents

README

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NUD4001DR2G

onsemi · LED Drivers · SOIC-8

NUD4001DR2G from onsemi, 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 Vin power_in Positive input voltage to the device. Continuous rating 30 V, non-repetitive peak 60 V (t <= 1 ms). Supplies the internal current-source control circuit and the LED string via the external Rext.
2 Boost output Optional boost pin used to drive an external transistor for higher current or PWM operation, as described in ON Semi App Note AND8198/D. Left unconnected in the basic LED-driver configuration (the package soldering-footprint sheet labels this pin as N/C).
3 Rext passive External current-set resistor pin. A resistor connected between Rext and Vin programs the LED drive current (Iout = Vsense / Rext, e.g. Rext = 2.0 ohm gives ~325 mA at 12 V in). See Figure 1 for Rext vs Iout.
4 GND power_in Device ground reference for the internal current-source control circuitry.
5 Iout output Regulated LED current output. Cathode(s) of the driven LED string connect from this pin to ground. Rated up to 500 mA (with Vdrop <= 2.2 V); Vout max 28 V. Pins 5-8 are tied internally to the same current-source output and are typically paralleled.
6 Iout output Regulated LED current output (internally common with pins 5, 7, 8). Connect LED cathode(s) from this pin to ground. Parallel pins 5-8 to spread current and improve thermal performance.
7 Iout output Regulated LED current output (internally common with pins 5, 6, 8). Connect LED cathode(s) from this pin to ground.
8 Iout output Regulated LED current output (internally common with pins 5, 6, 7). Connect LED cathode(s) from this pin to ground.

Key specifications

Parameter Value
Manufacturer onsemi
Package SOIC-8
Category LED-drv
Pins 8

Ordering variants

Same part, different packaging or reel option.

  • NUD4001DR2G
  • NUD4001DR2GNSVD4001DR2G

CAD (KiCad official)

  • Symbol: NUD4001DR2G
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: nud4001dr2g-etched.step / nud4001dr2g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); nud4001dr2g.step / nud4001dr2g.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (8 pp, sha256 385fc571e81f6ce3, retrieved 2026-08-17, tier: manufacturer)
  • 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