component
TL431ILPR
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Texas Instruments Voltage Reference, TO-92-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+40@@ -0,0 +1,40 @@+# TL431ILPR++**Texas Instruments** · Voltage Reference · TO-92-3++TL431ILPR from Texas Instruments, in a TO-92-3. 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 | CATHODE | bidirectional | Parallel current/voltage input (cathode, K); the terminal whose regulated voltage VKA is programmed from Vref (~2.5V) up to 36V by external resistors, requires a minimum regulating cathode current Imin of 0.4-1mA and is rated for a recommended continuous cathode current of 1mA to 100mA, with absolute maximum ratings of 37V cathode voltage and -100mA to 150mA cathode current. |+| 2 | ANODE | output | Common pin (anode, A), normally connected to ground/circuit common; provides the return path for the cathode current and is the reference node for the external feedback resistor divider. |+| 3 | REF | input | Reference/threshold input pin (measured relative to the common anode) that is internally compared to the device's ~2.5V bandgap reference; must be supplied with a reference input current of at least a few µA (typ. 2µA, max 4µA at IKA=10mA) and cannot be left floating, with an absolute maximum reference input current range of -0.05mA to 10mA. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | TO-92-3 |+| Category | Power Management (PMIC) |+| Pins | 3 |++## CAD (KiCad official)++- Symbol: `TL431ILPR`+- Footprint: `Package_TO_SOT_THT:TO-92_Inline`+- 3D model: TO-92-3 (KiCad packages3D, STEP)+- 3D model files: `tl431ilpr-etched.step` / `tl431ilpr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tl431ilpr.step` / `tl431ilpr.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 2026-09-23, 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/tl431ilpr-datasheet.pdf)
page.jsonadded+113@@ -0,0 +1,113 @@+{+ "slug": "tl431ilpr",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Voltage Reference, TO-92-3. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power management (pmic)",+ "tl431ilpr",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "tl431ilpr.kicad_sym",+ "tl431ilpr.kicad_mod",+ "tl431ilpr.glb",+ "tl431ilpr.step",+ "tl431ilpr.lbr",+ "docs/hero.png",+ "docs/tl431ilpr-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "TL431ILPR",+ "manufacturer": "Texas Instruments",+ "package": "TO-92-3",+ "pin_count": 3,+ "category": "Power Management (PMIC)",+ "subcategory": "Voltage Reference",+ "datasheet": "https://www.ti.com/cn/lit/gpn/tl431",+ "parts": {+ "symbol": "tl431ilpr.kicad_sym",+ "footprint": "tl431ilpr.kicad_mod",+ "model_3d": "tl431ilpr-etched.glb",+ "model_3d_plain": "tl431ilpr.glb",+ "model_3d_step": "tl431ilpr-etched.step",+ "model_3d_step_plain": "tl431ilpr.step",+ "lbr": "tl431ilpr.lbr"+ },+ "distributor_links": {+ "lcsc": "C273655"+ },+ "pins": [+ {+ "number": "1",+ "name": "CATHODE",+ "type": "bidirectional",+ "description": "Parallel current/voltage input (cathode, K); the terminal whose regulated voltage VKA is programmed from Vref (~2.5V) up to 36V by external resistors, requires a minimum regulating cathode current Imin of 0.4-1mA and is rated for a recommended continuous cathode current of 1mA to 100mA, with absolute maximum ratings of 37V cathode voltage and -100mA to 150mA cathode current."+ },+ {+ "number": "2",+ "name": "ANODE",+ "type": "output",+ "description": "Common pin (anode, A), normally connected to ground/circuit common; provides the return path for the cathode current and is the reference node for the external feedback resistor divider."+ },+ {+ "number": "3",+ "name": "REF",+ "type": "input",+ "description": "Reference/threshold input pin (measured relative to the common anode) that is internally compared to the device's ~2.5V bandgap reference; must be supplied with a reference input current of at least a few µA (typ. 2µA, max 4µA at IKA=10mA) and cannot be left floating, with an absolute maximum reference input current range of -0.05mA to 10mA."+ }+ ],+ "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: Package designated as LP in TI literature; TO-92-3 is the physical form factor designation. Pin assi"+ ],+ "pages_sent": 86,+ "cost_usd": 0.9756,+ "at": "2026-09-23T16:52:22"+ },+ "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": 3,+ "described": 3,+ "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]"+ }+}