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LM3414SDX

Public Made by Adom

by adom

Texas Instruments LED Drivers, SON-8-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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LM3414SDX

Texas Instruments · LED Drivers · SON-8-EP(3x3)

LM3414SDX from Texas Instruments, in a SON-8-EP(3x3). 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 VCC power_out Internal regulator output that must be bypassed to ground with a ceramic capacitor of at least 1 µF.
2 PGND power_in Power ground and reference point for all stated voltages, which must be externally connected to EP and GND.
3 IADJ input Average output current adjustment pin; a resistor RIADJ from this pin to ground sets the average output current.
4 GND power_in Analog ground for internal circuitry, which must be connected to PGND external to the package.
5 FS input Switching frequency setting pin; a resistor RFS from this pin to ground sets the switching frequency.
6 DIM input PWM dimming control pin where a logic-level PWM signal sets the intended brightness of the LED string.
7 LX output Drain of the integrated N-MOSFET switch, connected to the output inductor and the anode of the Schottky diode.
8 VIN power_in Input voltage pin rated 4.5 V to 42 V for LM3414 (4.5 V to 65 V for LM3414HV).
9 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SON-8-EP(3x3)
Category LED Drivers
Pins 9

CAD (KiCad official)

  • Symbol: LM3414SDX
  • Footprint: Package_SON:WSON-8-1EP_3x3mm_P0.5mm_EP1.6x2.0mm
  • 3D model: SON-8-EP(3x3) (KiCad packages3D, STEP)
  • 3D model files: lm3414sdx-etched.step / lm3414sdx-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm3414sdx.step / lm3414sdx.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (35 pp, sha256 50a54d53a0e6ecb0, retrieved 2026-10-11, 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