component
LM3445MMX
Public Made by Adomby adom
Texas Instruments LED Drivers, VSSOP-10-0.5mm. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+46@@ -0,0 +1,46 @@+# LM3445MMX++**Texas Instruments** · LED Drivers · VSSOP-10-0.5mm++LM3445MMX from Texas Instruments, in a VSSOP-10-0.5mm. 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 | ASNS | output | PWM output of TRIAC dim decoder circuit with 0-4 V range; duty cycle proportional to dimmer on-time. |+| 2 | FLTR1 | input | First filter input; 120-Hz PWM signal compared to 1-3 V, 5.85-kHz ramp to generate proportional frequency PWM. |+| 3 | DIM | bidirectional | Input/output dual function dim pin; can be driven with external PWM or used as output to other drivers; pull above 4.9 V to tri-state. |+| 4 | COFF | input | OFF time setting pin; user-set RC network connected to this pin sets constant OFF time of switching controller. |+| 5 | FLTR2 | input | Second filter input; capacitor filters PWM dimming signal to provide DC voltage for LED current control or analog dimming. |+| 6 | GND | power_in | Circuit ground connection and power return path. |+| 7 | ISNS | input | LED current sense input; external resistor from MOSFET source to GND through this pin sets maximum LED current. |+| 8 | GATE | output | Power MOSFET driver output; provides gate drive for power switching MOSFET of buck controller. |+| 9 | VCC | power_in | Input voltage pin; supplies 8-12 V to internal control circuitry and gate driver. |+| 10 | BLDR | input | Bleeder pin with internal switched 230-Ω resistor; provides input path and current for proper TRIAC dimmer firing. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | VSSOP-10-0.5mm |+| Category | LED Drivers |+| Pins | 10 |++## CAD (KiCad official)++- Symbol: `LM3445MMX`+- Footprint: `Package_SO:MSOP-10_3x3mm_P0.5mm`+- 3D model: VSSOP-10-0.5mm (KiCad packages3D, STEP)+- 3D model files: `lm3445mmx-etched.step` / `lm3445mmx-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm3445mmx.step` / `lm3445mmx.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/lm3445) (46 pp, sha256 `e690e402245bfa5e`, retrieved 2026-10-07, 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/lm3445mmx-datasheet.pdf)
page.jsonadded+209@@ -0,0 +1,209 @@+{+ "slug": "lm3445mmx",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments LED Drivers, VSSOP-10-0.5mm. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "led drivers",+ "lm3445mmx",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "lm3445mmx.kicad_sym",+ "lm3445mmx.kicad_mod",+ "lm3445mmx.glb",+ "lm3445mmx.step",+ "lm3445mmx.lbr",+ "docs/hero.png",+ "docs/lm3445mmx-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "lm3445mmx-hero.glb",+ "lm3445mmx-hero.overlay.json"+ ],+ "component": {+ "mpn": "LM3445MMX",+ "manufacturer": "Texas Instruments",+ "package": "VSSOP-10-0.5mm",+ "pin_count": 10,+ "category": "LED Drivers",+ "subcategory": "LED Drivers",+ "datasheet": "https://www.ti.com/cn/lit/gpn/lm3445",+ "parts": {+ "symbol": "lm3445mmx.kicad_sym",+ "footprint": "lm3445mmx.kicad_mod",+ "model_3d": "lm3445mmx-hero.glb",+ "model_3d_plain": "lm3445mmx.glb",+ "model_3d_step": "lm3445mmx-etched.step",+ "model_3d_step_plain": "lm3445mmx.step",+ "lbr": "lm3445mmx.lbr"+ },+ "distributor_links": {+ "lcsc": "C2679032",+ "digikey": "2156-LM3445MMX-ND"+ },+ "distributor_check": {+ "checked_at": "2026-10-07T02:11:54Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "2156-LM3445MMX-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": null,+ "status": "no match"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "ASNS",+ "type": "output",+ "description": "PWM output of TRIAC dim decoder circuit with 0-4 V range; duty cycle proportional to dimmer on-time."+ },+ {+ "number": "2",+ "name": "FLTR1",+ "type": "input",+ "description": "First filter input; 120-Hz PWM signal compared to 1-3 V, 5.85-kHz ramp to generate proportional frequency PWM."+ },+ {+ "number": "3",+ "name": "DIM",+ "type": "bidirectional",+ "description": "Input/output dual function dim pin; can be driven with external PWM or used as output to other drivers; pull above 4.9 V to tri-state."+ },+ {+ "number": "4",+ "name": "COFF",+ "type": "input",+ "description": "OFF time setting pin; user-set RC network connected to this pin sets constant OFF time of switching controller."+ },+ {+ "number": "5",+ "name": "FLTR2",+ "type": "input",+ "description": "Second filter input; capacitor filters PWM dimming signal to provide DC voltage for LED current control or analog dimming."+ },+ {+ "number": "6",+ "name": "GND",+ "type": "power_in",+ "description": "Circuit ground connection and power return path."+ },+ {+ "number": "7",+ "name": "ISNS",+ "type": "input",+ "description": "LED current sense input; external resistor from MOSFET source to GND through this pin sets maximum LED current."+ },+ {+ "number": "8",+ "name": "GATE",+ "type": "output",+ "description": "Power MOSFET driver output; provides gate drive for power switching MOSFET of buck controller."+ },+ {+ "number": "9",+ "name": "VCC",+ "type": "power_in",+ "description": "Input voltage pin; supplies 8-12 V to internal control circuitry and gate driver."+ },+ {+ "number": "10",+ "name": "BLDR",+ "type": "input",+ "description": "Bleeder pin with internal switched 230-Ω resistor; provides input path and current for proper TRIAC dimmer firing."+ }+ ],+ "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": [],+ "pages_sent": 7,+ "cost_usd": 0.109,+ "at": "2026-10-07T02:11:38"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/lm3445",+ "pages": 46,+ "sha256": "e690e402245bfa5e",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 10,+ "described": 10,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ },+ "models_3d": [+ {+ "file": "lm3445mmx.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 4.9,+ 3,+ 1.1+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "b8f88eac3ce221c2ccb0b5048f9ad49c2ef4af148f8ae50c4e232e357683f547",+ "checked": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "lm3445mmx-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 4.9,+ 3,+ 1.1+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "16d0f149128b4b02c016d0d04360fcb7c49546926fe383460607d703ca44c79c",+ "checked": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ]+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}