component
AS4950
Public Made by Adomby adom
ASSEMSTAR Brushed DC Motor Drivers, ESOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+46@@ -0,0 +1,46 @@+# AS4950++**ASSEMSTAR** · Brushed DC Motor Drivers · ESOP-8++AS4950 from ASSEMSTAR, in a ESOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | GND | power_in | Ground (0 V reference) for logic and output circuits. |+| 2 | IN2 | input | Logic input 2 for H-bridge control; accepts 0 to 6 V with thresholds at 0.8 V (low) and 2.0 V (high). |+| 3 | IN1 | input | Logic input 1 for H-bridge control; accepts 0 to 6 V with thresholds at 0.8 V (low) and 2.0 V (high). |+| 4 | VREF | power_in | Analog reference voltage input for current limiting; sets target current via 10 V/V gain comparator with LSEN. |+| 5 | VP | power_in | Power supply input for full bridge output drivers; 8 V to 40 V operating range. |+| 6 | OUT1 | tri_state | Full bridge DMOS output 1 for motor phase control; capable of ±3.5 A peak current (2 A continuous) with high impedance during dead time and coast mode. |+| 7 | LSEN | input | Current sense resistor connection; monitors voltage across external sense resistor (-0.5 V to 0.5 V) for PWM current limiting. |+| 8 | OUT2 | tri_state | Full bridge DMOS output 2 for motor phase control; capable of ±3.5 A peak current (2 A continuous) with high impedance during dead time and coast mode. |+| 9 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | ASSEMSTAR |+| Package | ESOP-8 |+| Category | Motor Driver ICs |+| Pins | 9 |++## CAD (KiCad official)++- Symbol: `AS4950`+- Footprint: `Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm`+- 3D model: ESOP-8 (KiCad packages3D, STEP)+- 3D model files: `as4950-etched.step` / `as4950-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `as4950.step` / `as4950.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [ASSEMSTAR datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588941110521024512) (7 pp, sha256 `930fd933bcba95ee`, retrieved 2026-09-22, tier: lcsc)+- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-4-6` (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/as4950-datasheet.pdf)
page.jsonadded+151@@ -0,0 +1,151 @@+{+ "slug": "as4950",+ "version": "0.1.0",+ "type": "component",+ "description": "ASSEMSTAR Brushed DC Motor Drivers, ESOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "motor driver ics",+ "as4950",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "as4950.kicad_sym",+ "as4950.kicad_mod",+ "as4950.glb",+ "as4950.step",+ "as4950.lbr",+ "docs/hero.png",+ "docs/as4950-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "AS4950",+ "manufacturer": "ASSEMSTAR",+ "package": "ESOP-8",+ "pin_count": 9,+ "category": "Motor Driver ICs",+ "subcategory": "Brushed DC Motor Drivers",+ "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588941110521024512",+ "parts": {+ "symbol": "as4950.kicad_sym",+ "footprint": "as4950.kicad_mod",+ "model_3d": "as4950-etched.glb",+ "model_3d_plain": "as4950.glb",+ "model_3d_step": "as4950-etched.step",+ "model_3d_step_plain": "as4950.step",+ "lbr": "as4950.lbr"+ },+ "distributor_links": {+ "lcsc": "C2929412"+ },+ "pins": [+ {+ "number": "1",+ "name": "GND",+ "type": "power_in",+ "description": "Ground (0 V reference) for logic and output circuits."+ },+ {+ "number": "2",+ "name": "IN2",+ "type": "input",+ "description": "Logic input 2 for H-bridge control; accepts 0 to 6 V with thresholds at 0.8 V (low) and 2.0 V (high)."+ },+ {+ "number": "3",+ "name": "IN1",+ "type": "input",+ "description": "Logic input 1 for H-bridge control; accepts 0 to 6 V with thresholds at 0.8 V (low) and 2.0 V (high)."+ },+ {+ "number": "4",+ "name": "VREF",+ "type": "power_in",+ "description": "Analog reference voltage input for current limiting; sets target current via 10 V/V gain comparator with LSEN."+ },+ {+ "number": "5",+ "name": "VP",+ "type": "power_in",+ "description": "Power supply input for full bridge output drivers; 8 V to 40 V operating range."+ },+ {+ "number": "6",+ "name": "OUT1",+ "type": "tri_state",+ "description": "Full bridge DMOS output 1 for motor phase control; capable of ±3.5 A peak current (2 A continuous) with high impedance during dead time and coast mode."+ },+ {+ "number": "7",+ "name": "LSEN",+ "type": "input",+ "description": "Current sense resistor connection; monitors voltage across external sense resistor (-0.5 V to 0.5 V) for PWM current limiting."+ },+ {+ "number": "8",+ "name": "OUT2",+ "type": "tri_state",+ "description": "Full bridge DMOS output 2 for motor phase control; capable of ±3.5 A peak current (2 A continuous) with high impedance during dead time and coast mode."+ },+ {+ "number": "9",+ "name": "EP",+ "type": "passive",+ "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.2",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.2",+ "primary_model": "claude-haiku-4-5-20251001",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-4-6",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "extractor flagged: VREF maximum voltage specification is not explicitly shown in the datasheet specifications table on ",+ "exposed pad 9 added from the footprint",+ "dropped thermal pad ['EP'] absent from footprint"+ ],+ "pages_sent": 7,+ "cost_usd": 0.1541,+ "at": "2026-09-22T08:55:56"+ },+ "datasheet": {+ "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588941110521024512",+ "pages": 7,+ "sha256": "930fd933bcba95ee",+ "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]"+ }+}