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LM4876MX
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Texas Instruments Audio Amplifiers, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+44@@ -0,0 +1,44 @@+# LM4876MX++**Texas Instruments** · Audio Amplifiers · SOIC-8++LM4876MX from Texas Instruments, in a SOIC-8. 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 micro-power shutdown input; shutdown is activated below 400mV (VIL 0.4V max, VIH 1.2V min) and should be tied to ground for lowest shutdown current. |+| 2 | BYPASS | passive | Half-supply bypass node; a 1µF capacitor to ground improves PSRR and sets turn-on settling for click and pop performance. |+| 3 | +IN | input | Non-inverting input of Amp1. |+| 4 | -IN | input | Inverting input of Amp1, connected through Ri and Ci to the signal with Rf feedback setting gain AVD = 2*(Rf/Ri). |+| 5 | Vo1 | output | Amp1 output, one side of the bridge-tied load. |+| 6 | VDD | power_in | Positive supply, 2.0V to 5.5V operating range (6.0V absolute max), bypassed locally with a capacitor to ground. |+| 7 | GND | power_in | Ground. |+| 8 | Vo2 | output | Amp2 output (gain of -1 from Amp1), the other side of the bridge-tied load. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-8 |+| Category | Amplifiers/Comparators |+| Pins | 8 |++## CAD (KiCad official)++- Symbol: `LM4876MX`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOIC-8 (KiCad packages3D, STEP)+- 3D model files: `lm4876mx-etched.step` / `lm4876mx-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm4876mx.step` / `lm4876mx.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/lm4876) (24 pp, sha256 `654e02c9a49d51a3`, retrieved 2026-10-01, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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/lm4876mx-datasheet.pdf)
page.jsonadded+155@@ -0,0 +1,155 @@+{+ "slug": "lm4876mx",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Audio Amplifiers, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "amplifiers-comparators",+ "lm4876mx",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "lm4876mx.kicad_sym",+ "lm4876mx.kicad_mod",+ "lm4876mx.glb",+ "lm4876mx.step",+ "lm4876mx.lbr",+ "docs/hero.png",+ "docs/lm4876mx-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "LM4876MX",+ "manufacturer": "Texas Instruments",+ "package": "SOIC-8",+ "pin_count": 8,+ "category": "Amplifiers/Comparators",+ "subcategory": "Audio Amplifiers",+ "datasheet": "https://www.ti.com/cn/lit/gpn/lm4876",+ "parts": {+ "symbol": "lm4876mx.kicad_sym",+ "footprint": "lm4876mx.kicad_mod",+ "model_3d": "lm4876mx-etched.glb",+ "model_3d_plain": "lm4876mx.glb",+ "model_3d_step": "lm4876mx-etched.step",+ "model_3d_step_plain": "lm4876mx.step",+ "lbr": "lm4876mx.lbr"+ },+ "distributor_links": {+ "lcsc": "C2878350"+ },+ "distributor_check": {+ "checked_at": "2026-10-01T09:01:43Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": null,+ "status": "no match"+ },+ "mouser": {+ "pn": null,+ "status": "error"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "SHUTDOWN",+ "type": "input",+ "description": "Active-low micro-power shutdown input; shutdown is activated below 400mV (VIL 0.4V max, VIH 1.2V min) and should be tied to ground for lowest shutdown current."+ },+ {+ "number": "2",+ "name": "BYPASS",+ "type": "passive",+ "description": "Half-supply bypass node; a 1µF capacitor to ground improves PSRR and sets turn-on settling for click and pop performance."+ },+ {+ "number": "3",+ "name": "+IN",+ "type": "input",+ "description": "Non-inverting input of Amp1."+ },+ {+ "number": "4",+ "name": "-IN",+ "type": "input",+ "description": "Inverting input of Amp1, connected through Ri and Ci to the signal with Rf feedback setting gain AVD = 2*(Rf/Ri)."+ },+ {+ "number": "5",+ "name": "Vo1",+ "type": "output",+ "description": "Amp1 output, one side of the bridge-tied load."+ },+ {+ "number": "6",+ "name": "VDD",+ "type": "power_in",+ "description": "Positive supply, 2.0V to 5.5V operating range (6.0V absolute max), bypassed locally with a capacitor to ground."+ },+ {+ "number": "7",+ "name": "GND",+ "type": "power_in",+ "description": "Ground."+ },+ {+ "number": "8",+ "name": "Vo2",+ "type": "output",+ "description": "Amp2 output (gain of -1 from Amp1), the other side of the bridge-tied load."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.3",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.3",+ "primary_model": "claude-sonnet-5-5",+ "primary_mode": "text+vision",+ "consensus_model": "claude-opus-5-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "vision extraction: provenance cannot be text-verified; needs consensus"+ ],+ "pages_sent": 24,+ "cost_usd": 0.521,+ "at": "2026-10-01T09:01:29"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/lm4876",+ "pages": 24,+ "sha256": "654e02c9a49d51a3",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 8,+ "described": 8,+ "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]"+ }+}