component
TPS25921LD
Public Made by Adomby adom
Texas Instruments Surge Protection Devices (SPDs), SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+45@@ -0,0 +1,45 @@+# TPS25921LD++**Texas Instruments** · Surge Protection Devices (SPDs) · SOIC-8++TPS25921LD 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 | GND | power_in | Ground reference pin for the device. |+| 2 | SS | passive | A capacitor from this pin to GND sets the output voltage ramp rate at turn-on, with 1 nF to 1000 nF recommended and 0 to 6 V recommended operating range (sink current limited to 5 mA). |+| 3 | ENUV | input | Input for setting the programmable undervoltage lockout threshold; an undervoltage event opens the internal FET and asserts FLT, and pulling it to GND resets the thermal fault latch in the TPS25921L, with a recommended range of 0 to 18 V. |+| 4 | IN | power_in | Power input and supply voltage of the device, with a recommended range of 4.5 V to 18 V and an absolute maximum of 20 V (22 V for 10 ms transient). |+| 5 | OUT | power_out | Power output of the device, with a recommended operating range of 0 to 18 V and 0.1 µF to 1 µF external capacitance recommended. |+| 6 | FLT | output | Open-drain fault indicator that goes low for undervoltage, overvoltage, or thermal shutdown faults (a nuisance fast trip does not trigger it), with a maximum sink current of 100 mA and absolute maximum of 20 V. |+| 7 | ILIM | passive | A resistor from this pin to GND sets the overload and short-circuit current limit, with 35.7 kΩ to 158 kΩ recommended (ILIM pin 0 to 3.3 V). |+| 8 | OVP | input | Input for setting the programmable overvoltage protection threshold; an overvoltage event opens the internal FET and asserts FLT, with a recommended range of 0 to 18 V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-8 |+| Category | Circuit Protection |+| Pins | 8 |++## CAD (KiCad official)++- Symbol: `TPS25921LD`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOIC-8 (KiCad packages3D, STEP)+- 3D model files: `tps25921ld-etched.step` / `tps25921ld-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tps25921ld.step` / `tps25921ld.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/tps25921l) (37 pp, sha256 `8d06a4861fe9cc79`, retrieved 2026-10-07, 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/tps25921ld-datasheet.pdf)
page.jsonadded+200@@ -0,0 +1,200 @@+{+ "slug": "tps25921ld",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Surge Protection Devices (SPDs), SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "circuit protection",+ "tps25921ld",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "tps25921ld.kicad_sym",+ "tps25921ld.kicad_mod",+ "tps25921ld.glb",+ "tps25921ld.step",+ "tps25921ld.lbr",+ "docs/hero.png",+ "docs/tps25921ld-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "tps25921ld-hero.glb",+ "tps25921ld-hero.overlay.json"+ ],+ "component": {+ "mpn": "TPS25921LD",+ "manufacturer": "Texas Instruments",+ "package": "SOIC-8",+ "pin_count": 8,+ "category": "Circuit Protection",+ "subcategory": "Surge Protection Devices (SPDs)",+ "datasheet": "https://www.ti.com/cn/lit/gpn/tps25921l",+ "parts": {+ "symbol": "tps25921ld.kicad_sym",+ "footprint": "tps25921ld.kicad_mod",+ "model_3d": "tps25921ld-hero.glb",+ "model_3d_plain": "tps25921ld.glb",+ "model_3d_step": "tps25921ld-etched.step",+ "model_3d_step_plain": "tps25921ld.step",+ "lbr": "tps25921ld.lbr"+ },+ "distributor_links": {+ "lcsc": "C1574847",+ "digikey": "296-38382-5-ND",+ "mouser": "595-TPS25921LD"+ },+ "distributor_check": {+ "checked_at": "2026-10-07T22:03:44Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-38382-5-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "595-TPS25921LD",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "GND",+ "type": "power_in",+ "description": "Ground reference pin for the device."+ },+ {+ "number": "2",+ "name": "SS",+ "type": "passive",+ "description": "A capacitor from this pin to GND sets the output voltage ramp rate at turn-on, with 1 nF to 1000 nF recommended and 0 to 6 V recommended operating range (sink current limited to 5 mA)."+ },+ {+ "number": "3",+ "name": "ENUV",+ "type": "input",+ "description": "Input for setting the programmable undervoltage lockout threshold; an undervoltage event opens the internal FET and asserts FLT, and pulling it to GND resets the thermal fault latch in the TPS25921L, with a recommended range of 0 to 18 V."+ },+ {+ "number": "4",+ "name": "IN",+ "type": "power_in",+ "description": "Power input and supply voltage of the device, with a recommended range of 4.5 V to 18 V and an absolute maximum of 20 V (22 V for 10 ms transient)."+ },+ {+ "number": "5",+ "name": "OUT",+ "type": "power_out",+ "description": "Power output of the device, with a recommended operating range of 0 to 18 V and 0.1 µF to 1 µF external capacitance recommended."+ },+ {+ "number": "6",+ "name": "FLT",+ "type": "output",+ "description": "Open-drain fault indicator that goes low for undervoltage, overvoltage, or thermal shutdown faults (a nuisance fast trip does not trigger it), with a maximum sink current of 100 mA and absolute maximum of 20 V."+ },+ {+ "number": "7",+ "name": "ILIM",+ "type": "passive",+ "description": "A resistor from this pin to GND sets the overload and short-circuit current limit, with 35.7 kΩ to 158 kΩ recommended (ILIM pin 0 to 3.3 V)."+ },+ {+ "number": "8",+ "name": "OVP",+ "type": "input",+ "description": "Input for setting the programmable overvoltage protection threshold; an overvoltage event opens the internal FET and asserts FLT, with a recommended range of 0 to 18 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: Pin types for SS and ILIM (passive, since they are set by an external capacitor and resistor) and EN; The datasheet text provided is the Chinese translation (ZHCSCQ0) and the English original was not in"+ ],+ "pages_sent": 7,+ "cost_usd": 0.0433,+ "at": "2026-10-07T22:03:25"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/tps25921l",+ "pages": 37,+ "sha256": "8d06a4861fe9cc79",+ "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"+ },+ "models_3d": [+ {+ "file": "tps25921ld.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6,+ 4.9,+ 1.75+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",+ "checked": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "tps25921ld-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6,+ 4.9,+ 1.75+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "e5e5416e45587fe65e5e09f017000ad56ba92b41f99a18cf2a7bef345d12db04",+ "checked": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ]+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}