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ISO7731BDWR
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Texas Instruments Digital Isolators, SOIC-16-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+53@@ -0,0 +1,53 @@+# ISO7731BDWR++**Texas Instruments** · Digital Isolators · SOIC-16-300mil++ISO7731BDWR from Texas Instruments, in a SOIC-16-300mil. 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 | VCC1 | power_in | Side-1 (input-side) power supply; recommended operating range is 2.25 V to 5.5 V, and a 0.1 µF bypass capacitor should be placed as close to the pin as possible. |+| 2 | GND1 | power_in | Ground connection for VCC1 on the input side. |+| 3 | INA | input | Channel A logic input on side 1, referenced to VCC1. |+| 4 | INB | input | Channel B logic input on side 1, referenced to VCC1. |+| 5 | OUTC | output | Channel C (reverse-direction) output on side 1; it is high impedance when EN1 is low. |+| 6 | NC | unconnected | Not connected. |+| 7 | EN1 | input | Output enable for side 1: high or open enables the side-1 outputs, and low puts them in high impedance. |+| 8 | GND1 | power_in | Ground connection for VCC1 on the input side. |+| 9 | GND2 | power_in | Ground connection for VCC2 on the output side. |+| 10 | EN2 | input | Output enable for side 2: high or open enables the side-2 outputs, and low puts them in high impedance. |+| 11 | NC | unconnected | Not connected. |+| 12 | INC | input | Channel C logic input on side 2 (reverse-direction channel), referenced to VCC2. |+| 13 | OUTB | output | Channel B output on side 2; it is high impedance when EN2 is low. |+| 14 | OUTA | output | Channel A output on side 2; it is high impedance when EN2 is low. |+| 15 | GND2 | power_in | Ground connection for VCC2 on the output side. |+| 16 | VCC2 | power_in | Side-2 (output-side) power supply; recommended operating range is 2.25 V to 5.5 V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-16-300mil |+| Category | Signal Isolation Devices |+| Pins | 16 |++## CAD (KiCad official)++- Symbol: `ISO7731BDWR`+- Footprint: `Package_SO:SOIC-16_3.9x9.9mm_P1.27mm`+- 3D model: SOIC-16-300mil (KiCad packages3D, STEP)+- 3D model files: `iso7731bdwr-etched.step` / `iso7731bdwr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `iso7731bdwr.step` / `iso7731bdwr.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/iso7730) (49 pp, sha256 `6d47a7b1277198b2`, retrieved 2026-10-08, 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 0.3`, primary `claude-haiku-5-5` (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/iso7731bdwr-datasheet.pdf)
page.jsonadded+248@@ -0,0 +1,248 @@+{+ "slug": "iso7731bdwr",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Digital Isolators, SOIC-16-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "signal isolation devices",+ "iso7731bdwr",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "iso7731bdwr.kicad_sym",+ "iso7731bdwr.kicad_mod",+ "iso7731bdwr.glb",+ "iso7731bdwr.step",+ "iso7731bdwr.lbr",+ "docs/hero.png",+ "docs/iso7731bdwr-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "iso7731bdwr-hero.glb",+ "iso7731bdwr-hero.overlay.json"+ ],+ "component": {+ "mpn": "ISO7731BDWR",+ "manufacturer": "Texas Instruments",+ "package": "SOIC-16-300mil",+ "pin_count": 16,+ "category": "Signal Isolation Devices",+ "subcategory": "Digital Isolators",+ "datasheet": "https://www.ti.com/cn/lit/gpn/iso7730",+ "parts": {+ "symbol": "iso7731bdwr.kicad_sym",+ "footprint": "iso7731bdwr.kicad_mod",+ "model_3d": "iso7731bdwr-hero.glb",+ "model_3d_plain": "iso7731bdwr.glb",+ "model_3d_step": "iso7731bdwr-etched.step",+ "model_3d_step_plain": "iso7731bdwr.step",+ "lbr": "iso7731bdwr.lbr"+ },+ "distributor_links": {+ "lcsc": "C2866217",+ "digikey": "296-ISO7731BDWRTR-ND",+ "mouser": "595-ISO7731BDWR"+ },+ "distributor_check": {+ "checked_at": "2026-10-08T20:18:35Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-ISO7731BDWRTR-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "595-ISO7731BDWR",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "VCC1",+ "type": "power_in",+ "description": "Side-1 (input-side) power supply; recommended operating range is 2.25 V to 5.5 V, and a 0.1 µF bypass capacitor should be placed as close to the pin as possible."+ },+ {+ "number": "2",+ "name": "GND1",+ "type": "power_in",+ "description": "Ground connection for VCC1 on the input side."+ },+ {+ "number": "3",+ "name": "INA",+ "type": "input",+ "description": "Channel A logic input on side 1, referenced to VCC1."+ },+ {+ "number": "4",+ "name": "INB",+ "type": "input",+ "description": "Channel B logic input on side 1, referenced to VCC1."+ },+ {+ "number": "5",+ "name": "OUTC",+ "type": "output",+ "description": "Channel C (reverse-direction) output on side 1; it is high impedance when EN1 is low."+ },+ {+ "number": "6",+ "name": "NC",+ "type": "unconnected",+ "description": "Not connected."+ },+ {+ "number": "7",+ "name": "EN1",+ "type": "input",+ "description": "Output enable for side 1: high or open enables the side-1 outputs, and low puts them in high impedance."+ },+ {+ "number": "8",+ "name": "GND1",+ "type": "power_in",+ "description": "Ground connection for VCC1 on the input side."+ },+ {+ "number": "9",+ "name": "GND2",+ "type": "power_in",+ "description": "Ground connection for VCC2 on the output side."+ },+ {+ "number": "10",+ "name": "EN2",+ "type": "input",+ "description": "Output enable for side 2: high or open enables the side-2 outputs, and low puts them in high impedance."+ },+ {+ "number": "11",+ "name": "NC",+ "type": "unconnected",+ "description": "Not connected."+ },+ {+ "number": "12",+ "name": "INC",+ "type": "input",+ "description": "Channel C logic input on side 2 (reverse-direction channel), referenced to VCC2."+ },+ {+ "number": "13",+ "name": "OUTB",+ "type": "output",+ "description": "Channel B output on side 2; it is high impedance when EN2 is low."+ },+ {+ "number": "14",+ "name": "OUTA",+ "type": "output",+ "description": "Channel A output on side 2; it is high impedance when EN2 is low."+ },+ {+ "number": "15",+ "name": "GND2",+ "type": "power_in",+ "description": "Ground connection for VCC2 on the output side."+ },+ {+ "number": "16",+ "name": "VCC2",+ "type": "power_in",+ "description": "Side-2 (output-side) power supply; recommended operating range is 2.25 V to 5.5 V."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.3",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.3",+ "primary_model": "claude-haiku-5-5",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "extractor flagged: The datasheet has no separate pin table or pin figure for the ISO7731B. The pinout was taken from th; Pin 1 orientation and pin count match the DW-16 (SOIC-WB, 10.30 mm x 7.50 mm body) package, which is"+ ],+ "pages_sent": 27,+ "cost_usd": 0.138,+ "at": "2026-10-08T20:17:51"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/iso7730",+ "pages": 49,+ "sha256": "6d47a7b1277198b2",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 16,+ "described": 16,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ },+ "models_3d": [+ {+ "file": "iso7731bdwr.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6,+ 9.9,+ 1.75+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "iso7731bdwr-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6,+ 9.9,+ 1.75+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "a1459247b70259068c0c75ae1c0e8d44d87b00c06af486ac71e0d70be8c1e7e2",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ]+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}