component
TL431AIDBVR
Public Made by Adomby adom
Texas Instruments Voltage Reference, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+42@@ -0,0 +1,42 @@+# TL431AIDBVR++**Texas Instruments** · Voltage Reference · SOT-23-5++TL431AIDBVR from Texas Instruments, in a SOT-23-5. 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 | NC | unconnected | No internal connection on the TL431/TL431A/TL431B DBV (SOT-23-5) package pinout. |+| 2 | NC | unconnected | No internal connection, but this pin is attached to the die substrate; the datasheet states it must be connected to ANODE or left open. |+| 3 | CATHODE | bidirectional | Shunt current/voltage (I/O) terminal of the regulator; recommended continuous cathode current range is 1 mA to 100 mA (absolute maximum -100 mA to 150 mA) with cathode voltage up to 37 V absolute maximum (36 V recommended maximum). |+| 4 | REF | input | Reference input threshold voltage relative to the common ANODE pin; must be driven with a reference input current (typical 2 µA, max 4 µA) and is internally regulated to approximately 2.5 V (Vref = 2440-2550 mV typical range) in closed-loop operation. |+| 5 | ANODE | power_in | Common pin of the device, described in the datasheet as typically connected to ground (通常接地); serves as the reference/return terminal for the cathode current and reference voltage. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOT-23-5 |+| Category | Power Management (PMIC) |+| Pins | 5 |++## CAD (KiCad official)++- Symbol: `TL431AIDBVR`+- Footprint: `Package_TO_SOT_SMD:SOT-23-5`+- 3D model: SOT-23-5 (KiCad packages3D, STEP)+- 3D model files: `tl431aidbvr-etched.step` / `tl431aidbvr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tl431aidbvr.step` / `tl431aidbvr.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/tl431) (86 pp, sha256 `313277b9351e61ed`, 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-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/tl431aidbvr-datasheet.pdf)
page.jsonadded+125@@ -0,0 +1,125 @@+{+ "slug": "tl431aidbvr",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Voltage Reference, SOT-23-5. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power management (pmic)",+ "tl431aidbvr",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "tl431aidbvr.kicad_sym",+ "tl431aidbvr.kicad_mod",+ "tl431aidbvr.glb",+ "tl431aidbvr.step",+ "tl431aidbvr.lbr",+ "docs/hero.png",+ "docs/tl431aidbvr-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "TL431AIDBVR",+ "manufacturer": "Texas Instruments",+ "package": "SOT-23-5",+ "pin_count": 5,+ "category": "Power Management (PMIC)",+ "subcategory": "Voltage Reference",+ "datasheet": "https://www.ti.com/cn/lit/gpn/tl431",+ "parts": {+ "symbol": "tl431aidbvr.kicad_sym",+ "footprint": "tl431aidbvr.kicad_mod",+ "model_3d": "tl431aidbvr-etched.glb",+ "model_3d_plain": "tl431aidbvr.glb",+ "model_3d_step": "tl431aidbvr-etched.step",+ "model_3d_step_plain": "tl431aidbvr.step",+ "lbr": "tl431aidbvr.lbr"+ },+ "distributor_links": {+ "lcsc": "C144392"+ },+ "pins": [+ {+ "number": "1",+ "name": "NC",+ "type": "unconnected",+ "description": "No internal connection on the TL431/TL431A/TL431B DBV (SOT-23-5) package pinout."+ },+ {+ "number": "2",+ "name": "NC",+ "type": "unconnected",+ "description": "No internal connection, but this pin is attached to the die substrate; the datasheet states it must be connected to ANODE or left open."+ },+ {+ "number": "3",+ "name": "CATHODE",+ "type": "bidirectional",+ "description": "Shunt current/voltage (I/O) terminal of the regulator; recommended continuous cathode current range is 1 mA to 100 mA (absolute maximum -100 mA to 150 mA) with cathode voltage up to 37 V absolute maximum (36 V recommended maximum)."+ },+ {+ "number": "4",+ "name": "REF",+ "type": "input",+ "description": "Reference input threshold voltage relative to the common ANODE pin; must be driven with a reference input current (typical 2 µA, max 4 µA) and is internally regulated to approximately 2.5 V (Vref = 2440-2550 mV typical range) in closed-loop operation."+ },+ {+ "number": "5",+ "name": "ANODE",+ "type": "power_in",+ "description": "Common pin of the device, described in the datasheet as typically connected to ground (通常接地); serves as the reference/return terminal for the cathode current and reference voltage."+ }+ ],+ "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-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "extractor flagged: Pin 2 substrate connection behavior: datasheet states it 'must be connected to ANODE or left open' w"+ ],+ "pages_sent": 86,+ "cost_usd": 1.1615,+ "at": "2026-09-22T19:14:40"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/tl431",+ "pages": 86,+ "sha256": "313277b9351e61ed",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 5,+ "described": 5,+ "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]"+ }+}