component
LM3404MRX
Public Made by Adomby adom
Texas Instruments LED Drivers, SOP-8-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+45@@ -0,0 +1,45 @@+# LM3404MRX++**Texas Instruments** · LED Drivers · SOP-8-EP++LM3404MRX from Texas Instruments, in a SOP-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 | SW | output | Switch pin connected to output inductor and Schottky diode. |+| 2 | BOOT | output | MOSFET drive bootstrap pin; connect 10-nF ceramic capacitor from this pin to SW. |+| 3 | DIM | input | PWM dimming input pin; logic-level PWM signal enables/disables power MOSFET and controls LED array light output. |+| 4 | GND | power_in | Ground pin connected to system ground. |+| 5 | CS | input | Current sense feedback pin; set LED array current by connecting resistor from this pin to ground. |+| 6 | RON | input | On-time control pin; resistor from this pin to VIN sets regulator controlled on-time. |+| 7 | VCC | power_out | Output of internal 7-V linear regulator; bypass to ground with minimum 0.1-µF ceramic capacitor (X5R or X7R dielectric). |+| 8 | VIN | power_in | Input voltage pin with nominal operating range 6 V to 42 V (LM3404) or 6 V to 75 V (LM3404HV). |+| 9 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOP-8-EP |+| Category | LED Drivers |+| Pins | 9 |++## CAD (KiCad official)++- Symbol: `LM3404MRX`+- Footprint: `Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm`+- 3D model: SOP-8-EP (KiCad packages3D, STEP)+- 3D model files: `lm3404mrx-etched.step` / `lm3404mrx-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm3404mrx.step` / `lm3404mrx.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/lm3404) (47 pp, sha256 `c30b6b258c57c07a`, retrieved 2026-10-03, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (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](docs/lm3404mrx-datasheet.pdf)
page.jsonadded+169@@ -0,0 +1,169 @@+{+ "slug": "lm3404mrx",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments LED Drivers, SOP-8-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "led drivers",+ "lm3404mrx",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "lm3404mrx.kicad_sym",+ "lm3404mrx.kicad_mod",+ "lm3404mrx.glb",+ "lm3404mrx.step",+ "lm3404mrx.lbr",+ "docs/hero.png",+ "docs/lm3404mrx-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "lm3404mrx-hero.glb",+ "lm3404mrx-hero.overlay.json"+ ],+ "component": {+ "mpn": "LM3404MRX",+ "manufacturer": "Texas Instruments",+ "package": "SOP-8-EP",+ "pin_count": 9,+ "category": "LED Drivers",+ "subcategory": "LED Drivers",+ "datasheet": "https://www.ti.com/cn/lit/gpn/lm3404",+ "parts": {+ "symbol": "lm3404mrx.kicad_sym",+ "footprint": "lm3404mrx.kicad_mod",+ "model_3d": "lm3404mrx-hero.glb",+ "model_3d_plain": "lm3404mrx.glb",+ "model_3d_step": "lm3404mrx-etched.step",+ "model_3d_step_plain": "lm3404mrx.step",+ "lbr": "lm3404mrx.lbr"+ },+ "distributor_links": {+ "lcsc": 394733,+ "digikey": "LM3404MRXTR-ND",+ "mouser": "926-LM3404MRX"+ },+ "distributor_check": {+ "checked_at": "2026-10-03T03:39:31Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "LM3404MRXTR-ND",+ "status": "found",+ "lifecycle": "Discontinued at DigiKey"+ },+ "mouser": {+ "pn": "926-LM3404MRX",+ "status": "found",+ "lifecycle": "Obsolete"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "SW",+ "type": "output",+ "description": "Switch pin connected to output inductor and Schottky diode."+ },+ {+ "number": "2",+ "name": "BOOT",+ "type": "output",+ "description": "MOSFET drive bootstrap pin; connect 10-nF ceramic capacitor from this pin to SW."+ },+ {+ "number": "3",+ "name": "DIM",+ "type": "input",+ "description": "PWM dimming input pin; logic-level PWM signal enables/disables power MOSFET and controls LED array light output."+ },+ {+ "number": "4",+ "name": "GND",+ "type": "power_in",+ "description": "Ground pin connected to system ground."+ },+ {+ "number": "5",+ "name": "CS",+ "type": "input",+ "description": "Current sense feedback pin; set LED array current by connecting resistor from this pin to ground."+ },+ {+ "number": "6",+ "name": "RON",+ "type": "input",+ "description": "On-time control pin; resistor from this pin to VIN sets regulator controlled on-time."+ },+ {+ "number": "7",+ "name": "VCC",+ "type": "power_out",+ "description": "Output of internal 7-V linear regulator; bypass to ground with minimum 0.1-µF ceramic capacitor (X5R or X7R dielectric)."+ },+ {+ "number": "8",+ "name": "VIN",+ "type": "power_in",+ "description": "Input voltage pin with nominal operating range 6 V to 42 V (LM3404) or 6 V to 75 V (LM3404HV)."+ },+ {+ "number": "9",+ "name": "EP",+ "type": "passive",+ "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.3",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.3",+ "primary_model": "claude-haiku-4-5-20251001",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "extractor flagged: DAP pad is not a traditional numbered pin but a thermal/mechanical PowerPAD; included with 'DAP' as ",+ "exposed pad 9 added from the footprint",+ "dropped thermal pad ['EP'] absent from footprint"+ ],+ "pages_sent": 8,+ "cost_usd": 0.1229,+ "at": "2026-10-03T03:39:06"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/lm3404",+ "pages": 47,+ "sha256": "c30b6b258c57c07a",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 9,+ "described": 9,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ }+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}