component
LM4670SD
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Texas Instruments Audio Amplifiers, SON-8-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+45@@ -0,0 +1,45 @@+# LM4670SD++**Texas Instruments** · Audio Amplifiers · SON-8-EP(3x3)++LM4670SD 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 | SHUTDOWN | input | Active-low shutdown input; logic low (GND) enables shutdown, VSDIL 0.4V max and VSDIH 1.4V min, with an internal 300kΩ resistor to GND so a floating pin shuts the device down. |+| 2 | -IN | input | Inverting audio input; gain is set by AV = 2*150kΩ/Ri with the external input resistor Ri. |+| 3 | +IN | input | Non-inverting audio input; gain is set by AV = 2*150kΩ/Ri with the external input resistor Ri. |+| 4 | GND | power_in | Ground pin, the reference for all voltages. |+| 5 | VO1 | output | Switching BTL output 1 that drives the speaker load directly without an output filter. |+| 6 | GND | power_in | Ground pin, the reference for all voltages. |+| 7 | VDD | power_in | Supply voltage input, 2.4V to 5.5V operating range, bypassed with a 1µF capacitor placed close to the pin. |+| 8 | VO2 | output | Switching BTL output 2 that drives the speaker load directly without an output filter. |+| 9 | EP | passive | Exposed thermal pad that must be soldered to the PCB for thermal and mechanical performance; the datasheet does not state its net connection. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SON-8-EP(3x3) |+| Category | Amplifiers/Comparators |+| Pins | 9 |++## CAD (KiCad official)++- Symbol: `LM4670SD`+- Footprint: `Package_SON:WSON-8-1EP_3x3mm_P0.5mm_EP1.6x2.0mm`+- 3D model: SON-8-EP(3x3) (KiCad packages3D, STEP)+- 3D model files: `lm4670sd-etched.step` / `lm4670sd-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm4670sd.step` / `lm4670sd.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/lm4670) (26 pp, sha256 `0068144b7e44b3d9`, 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/lm4670sd-datasheet.pdf)
page.jsonadded+166@@ -0,0 +1,166 @@+{+ "slug": "lm4670sd",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Audio Amplifiers, SON-8-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "amplifiers-comparators",+ "lm4670sd",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "lm4670sd.kicad_sym",+ "lm4670sd.kicad_mod",+ "lm4670sd.glb",+ "lm4670sd.step",+ "lm4670sd.lbr",+ "docs/hero.png",+ "docs/lm4670sd-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "lm4670sd-hero.glb",+ "lm4670sd-hero.overlay.json"+ ],+ "component": {+ "mpn": "LM4670SD",+ "manufacturer": "Texas Instruments",+ "package": "SON-8-EP(3x3)",+ "pin_count": 9,+ "category": "Amplifiers/Comparators",+ "subcategory": "Audio Amplifiers",+ "datasheet": "https://www.ti.com/cn/lit/gpn/lm4670",+ "parts": {+ "symbol": "lm4670sd.kicad_sym",+ "footprint": "lm4670sd.kicad_mod",+ "model_3d": "lm4670sd-hero.glb",+ "model_3d_plain": "lm4670sd.glb",+ "model_3d_step": "lm4670sd-etched.step",+ "model_3d_step_plain": "lm4670sd.step",+ "lbr": "lm4670sd.lbr"+ },+ "distributor_links": {+ "lcsc": 131968,+ "digikey": "2156-LM4670SD-ND"+ },+ "distributor_check": {+ "checked_at": "2026-10-03T03:17:10Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "2156-LM4670SD-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": null,+ "status": "no match"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "SHUTDOWN",+ "type": "input",+ "description": "Active-low shutdown input; logic low (GND) enables shutdown, VSDIL 0.4V max and VSDIH 1.4V min, with an internal 300kΩ resistor to GND so a floating pin shuts the device down."+ },+ {+ "number": "2",+ "name": "-IN",+ "type": "input",+ "description": "Inverting audio input; gain is set by AV = 2*150kΩ/Ri with the external input resistor Ri."+ },+ {+ "number": "3",+ "name": "+IN",+ "type": "input",+ "description": "Non-inverting audio input; gain is set by AV = 2*150kΩ/Ri with the external input resistor Ri."+ },+ {+ "number": "4",+ "name": "GND",+ "type": "power_in",+ "description": "Ground pin, the reference for all voltages."+ },+ {+ "number": "5",+ "name": "VO1",+ "type": "output",+ "description": "Switching BTL output 1 that drives the speaker load directly without an output filter."+ },+ {+ "number": "6",+ "name": "GND",+ "type": "power_in",+ "description": "Ground pin, the reference for all voltages."+ },+ {+ "number": "7",+ "name": "VDD",+ "type": "power_in",+ "description": "Supply voltage input, 2.4V to 5.5V operating range, bypassed with a 1µF capacitor placed close to the pin."+ },+ {+ "number": "8",+ "name": "VO2",+ "type": "output",+ "description": "Switching BTL output 2 that drives the speaker load directly without an output filter."+ },+ {+ "number": "9",+ "name": "EP",+ "type": "passive",+ "description": "Exposed thermal pad that must be soldered to the PCB for thermal and mechanical performance; the datasheet does not state its net connection."+ }+ ],+ "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: Pin number to signal mapping not explicitly shown in provided datasheet text. Figure 3 (PAGE 2) show; Exposed pad (EP) for WSON-8 package is typically connected to GND but not explicitly confirmed in pr",+ "exposed pad 9 added from the footprint"+ ],+ "pages_sent": 6,+ "cost_usd": 0.2628,+ "at": "2026-10-03T03:16:51"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/lm4670",+ "pages": 26,+ "sha256": "0068144b7e44b3d9",+ "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]"+ }+}