component

LM3401MMX

Public Made by Adom

by adom

Texas Instruments LED Drivers, MSOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentnixie tube driver-led driverlm3401mmxfactory-2.0.0extractor-text
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Generated by kicad-footprint-generator · KiCad file format 20260206
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docs Publish 0.1.0 · Ray 21h ago
viewers lm3401mmx: viewers · Ray 21h ago
lm3401mmx-etched.glb lm3401mmx: factory component page (tier=lcsc) · Ray 21h ago
lm3401mmx-etched.step lm3401mmx: factory component page (tier=lcsc) · Ray 21h ago
lm3401mmx-hero.glb lm3401mmx: hero GLB from the etched model (keeps the MPN mark) · Ray 21h ago
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lm3401mmx.glb Publish 0.1.0 · Ray 21h ago
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README.md Initial commit: component/lm3401mmx · Ray 21h ago

LM3401MMX

Texas Instruments · LED Drivers · MSOP-8

LM3401MMX from Texas Instruments, in a MSOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 CS input Current sense pin, connected to the PFET drain; the datasheet gives an absolute maximum range of -2.0V to 36V for CS.
2 DIM input Dimming input; when DIM is low the HG drive is off, and it can be driven by a logic-level PWM signal (absolute maximum -0.3V to 36V).
3 SNS input Current feedback pin connected to the LED cathode; a resistor from this pin to ground sets the DC LED current (absolute maximum -0.3V to 8V).
4 HYS passive Hysteresis adjust pin; a resistor from this pin to GND sets the hysteresis window (absolute maximum -0.3V to 4V).
5 GND power_in Ground pin for the controller; the datasheet asks that the SNS, HYS and GND connections use an isolated ground area and be grounded close to this pin.
6 HG output Gate drive output that connects to the PFET gate.
7 VIN power_in Power supply input, operating range 4.5V to 35V with an absolute maximum of 36V.
8 ILIM passive Current limit adjust pin; a resistor from this pin to the PFET source sets the current limit threshold (absolute maximum -0.3V to 36V).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package MSOP-8
Category Nixie Tube Driver/LED Driver
Pins 8

CAD (KiCad official)

  • Symbol: LM3401MMX
  • Footprint: Package_SO:MSOP-8_3x3mm_P0.65mm
  • 3D model: MSOP-8 (KiCad packages3D, STEP)
  • 3D model files: lm3401mmx-etched.step / lm3401mmx-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm3401mmx.step / lm3401mmx.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (26 pp, sha256 5fa65167b595991e, retrieved 2026-10-08, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF