component
LM3466MRX
Public Made by Adomby adom
Texas Instruments LED Drivers, SOIC-8-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownLM3466MRX
Texas Instruments · LED Drivers · SOIC-8-EP
LM3466MRX from Texas Instruments, in a SOIC-8-EP. 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 | ILED | input | Current regulator input connected to the drain of the integrated power MOSFET and the LED string cathode; the device is rated for 70 V maximum per LED string (absolute maximum 75 V to GND), and a capacitor to ground may be added to reduce noise on long LED cables. |
| 2 | COMM | output | Open-drain status output that indicates startup, LED string active/inactive and thermal shutdown; it is pulled low at startup and under thermal protection, is pulled up to 6.0 V through a 10-kΩ resistor, and has an absolute maximum rating of 7 V to GND. |
| 3 | VIN | power_in | Input voltage supply rated 6 V to 70 V (absolute maximum 75 V to GND) that should be decoupled with a 10-nF capacitor to ground. |
| 4 | VEQ | output | Control voltage output that connects to the VEQ pin of other LM3466 devices through a 51-Ω resistor in series with a 1-µF capacitor to ground (absolute maximum 5 V to GND). |
| 5 | GND | power_in | Ground connection that connects to the ground plane and is also the reference for the device's absolute maximum ratings. |
| 6 | SEN | input | Current sense input that senses the voltage of the external sensing resistor and regulates it to about 200 mV (absolute maximum 5 V to GND). |
| 7 | SRC | output | Source of the integrated power MOSFET that connects to the external current sensing resistor RSEN to ground (absolute maximum 5 V to GND). |
| 8 | SRC | output | Source of the integrated power MOSFET that connects to the external current sensing resistor RSEN to ground; the datasheet lists this pin together with pin 7 as the single SRC function (absolute maximum 5 V to GND). |
| 9 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8-EP |
| Category | LED Drivers |
| Pins | 9 |
CAD (KiCad official)
- Symbol:
LM3466MRX - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm - 3D model: SOIC-8-EP (KiCad packages3D, STEP)
- 3D model files:
lm3466mrx-etched.step/lm3466mrx-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm3466mrx.step/lm3466mrx.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (24 pp, sha256
cbb2154e987b744e, retrieved 2026-10-12, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).