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LM25056APSQ
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Texas Instruments Energy Metering ICs, WQFN-24-EP(4x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+61@@ -0,0 +1,61 @@+# LM25056APSQ++**Texas Instruments** · Energy Metering ICs · WQFN-24-EP(4x5)++LM25056APSQ from Texas Instruments, in a WQFN-24-EP(4x5). 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 | ADR2 | input | SMBus address line 2 is a three-state address input that should be connected to GND, VDD, or left floating. |+| 2 | ADR1 | input | SMBus address line 1 is a three-state address input that should be connected to GND, VDD, or left floating. |+| 3 | ADR0 | input | SMBus address line 0 is a three-state address input that should be connected to GND, VDD, or left floating. |+| 4 | VDD | power_out | Internally sub-regulated 3.7V bias output that needs a 1 µF bypass capacitor to ground, and can alternatively be driven from an external 3V to 5.5V supply for low-voltage operation. |+| 5 | NC | unconnected | No connect, not bonded to die; can be connected to the ground plane. |+| 6 | NC | unconnected | No connect, not bonded to die; can be connected to the ground plane. |+| 7 | NC | unconnected | No connect, not bonded to die; can be connected to the ground plane. |+| 8 | VS- | power_in | Negative current-sense input to the IIN sense amplifier; the voltage across the sense resistor RS is measured from VS+ to this pin. |+| 9 | VS+ | power_in | Positive current-sense input to the IIN sense amplifier; the voltage across the sense resistor RS is measured from this pin to VS-. |+| 10 | NC | unconnected | No connect, not bonded to die; can be connected to the ground plane. |+| 11 | VIN | power_in | Positive supply input rated 3V to 17V operating (24V absolute maximum), with a small 0.1 µF ceramic bypass capacitor recommended close to the pin. |+| 12 | ENABLE | input | Enable input with a +1.2V rising threshold; lowering it below the 75 mV hysteresis point puts the device into power-down mode. |+| 13 | VAUX | input | Auxiliary voltage telemetry input with a full-scale input of 1.2V. |+| 14 | NC | unconnected | No connect, not bonded to die; can be connected to the ground plane. |+| 15 | NC | unconnected | No connect, not bonded to die; can be connected to the ground plane. |+| 16 | NC | unconnected | No connect, not bonded to die; can be connected to the ground plane. |+| 17 | AGND | power_in | Analog ground, to be tied to DGND and then to a quiet system ground while keeping high-current return paths away from it. |+| 18 | NC | unconnected | No connect, not bonded to die; can be connected to the ground plane. |+| 19 | DGND | power_in | Digital ground, to be tied to AGND and then to a clean system ground while keeping high-current return paths away from it. |+| 20 | SDA | bidirectional | SMBus data line. |+| 21 | SCL | input | SMBus clock line. |+| 22 | SMBA | output | SMBus alert line, active low. |+| 23 | VREF | power_out | Internally generated precision 2.82V reference used for analog-to-digital conversion, which needs a 1 µF ceramic bypass capacitor to ground. |+| 24 | DIODE | passive | External temperature-sensing connection, to be tied to a diode-configured MMBT3904 NPN transistor. |+| 25 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | WQFN-24-EP(4x5) |+| Category | ADC/DAC/Data Conversion |+| Pins | 25 |++## CAD (KiCad official)++- Symbol: `LM25056APSQ`+- Footprint: `Package_DFN_QFN:QFN-24-1EP_4x5mm_P0.5mm_EP2.65x3.65mm`+- 3D model: WQFN-24-EP(4x5) (KiCad packages3D, STEP)+- 3D model files: `lm25056apsq-etched.step` / `lm25056apsq-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm25056apsq.step` / `lm25056apsq.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/lm25056a) (38 pp, sha256 `f097a3dedf36217b`, retrieved 2026-10-08, tier: lcsc)+- **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/lm25056apsq-datasheet.pdf)
page.jsonadded+301@@ -0,0 +1,301 @@+{+ "slug": "lm25056apsq",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Energy Metering ICs, WQFN-24-EP(4x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "adc-dac-data conversion",+ "lm25056apsq",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "lm25056apsq.kicad_sym",+ "lm25056apsq.kicad_mod",+ "lm25056apsq.glb",+ "lm25056apsq.step",+ "lm25056apsq.lbr",+ "docs/hero.png",+ "docs/lm25056apsq-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "lm25056apsq-hero.glb",+ "lm25056apsq-hero.overlay.json"+ ],+ "component": {+ "mpn": "LM25056APSQ",+ "manufacturer": "Texas Instruments",+ "package": "WQFN-24-EP(4x5)",+ "pin_count": 25,+ "category": "ADC/DAC/Data Conversion",+ "subcategory": "Energy Metering ICs",+ "datasheet": "https://www.ti.com/cn/lit/gpn/lm25056a",+ "parts": {+ "symbol": "lm25056apsq.kicad_sym",+ "footprint": "lm25056apsq.kicad_mod",+ "model_3d": "lm25056apsq-hero.glb",+ "model_3d_plain": "lm25056apsq.glb",+ "model_3d_step": "lm25056apsq-etched.step",+ "model_3d_step_plain": "lm25056apsq.step",+ "lbr": "lm25056apsq.lbr"+ },+ "distributor_links": {+ "lcsc": "C2653433"+ },+ "distributor_check": {+ "checked_at": "2026-10-08T15:48:44Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": null,+ "status": "no match"+ },+ "mouser": {+ "pn": null,+ "status": "no match"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "ADR2",+ "type": "input",+ "description": "SMBus address line 2 is a three-state address input that should be connected to GND, VDD, or left floating."+ },+ {+ "number": "2",+ "name": "ADR1",+ "type": "input",+ "description": "SMBus address line 1 is a three-state address input that should be connected to GND, VDD, or left floating."+ },+ {+ "number": "3",+ "name": "ADR0",+ "type": "input",+ "description": "SMBus address line 0 is a three-state address input that should be connected to GND, VDD, or left floating."+ },+ {+ "number": "4",+ "name": "VDD",+ "type": "power_out",+ "description": "Internally sub-regulated 3.7V bias output that needs a 1 µF bypass capacitor to ground, and can alternatively be driven from an external 3V to 5.5V supply for low-voltage operation."+ },+ {+ "number": "5",+ "name": "NC",+ "type": "unconnected",+ "description": "No connect, not bonded to die; can be connected to the ground plane."+ },+ {+ "number": "6",+ "name": "NC",+ "type": "unconnected",+ "description": "No connect, not bonded to die; can be connected to the ground plane."+ },+ {+ "number": "7",+ "name": "NC",+ "type": "unconnected",+ "description": "No connect, not bonded to die; can be connected to the ground plane."+ },+ {+ "number": "8",+ "name": "VS-",+ "type": "power_in",+ "description": "Negative current-sense input to the IIN sense amplifier; the voltage across the sense resistor RS is measured from VS+ to this pin."+ },+ {+ "number": "9",+ "name": "VS+",+ "type": "power_in",+ "description": "Positive current-sense input to the IIN sense amplifier; the voltage across the sense resistor RS is measured from this pin to VS-."+ },+ {+ "number": "10",+ "name": "NC",+ "type": "unconnected",+ "description": "No connect, not bonded to die; can be connected to the ground plane."+ },+ {+ "number": "11",+ "name": "VIN",+ "type": "power_in",+ "description": "Positive supply input rated 3V to 17V operating (24V absolute maximum), with a small 0.1 µF ceramic bypass capacitor recommended close to the pin."+ },+ {+ "number": "12",+ "name": "ENABLE",+ "type": "input",+ "description": "Enable input with a +1.2V rising threshold; lowering it below the 75 mV hysteresis point puts the device into power-down mode."+ },+ {+ "number": "13",+ "name": "VAUX",+ "type": "input",+ "description": "Auxiliary voltage telemetry input with a full-scale input of 1.2V."+ },+ {+ "number": "14",+ "name": "NC",+ "type": "unconnected",+ "description": "No connect, not bonded to die; can be connected to the ground plane."+ },+ {+ "number": "15",+ "name": "NC",+ "type": "unconnected",+ "description": "No connect, not bonded to die; can be connected to the ground plane."+ },+ {+ "number": "16",+ "name": "NC",+ "type": "unconnected",+ "description": "No connect, not bonded to die; can be connected to the ground plane."+ },+ {+ "number": "17",+ "name": "AGND",+ "type": "power_in",+ "description": "Analog ground, to be tied to DGND and then to a quiet system ground while keeping high-current return paths away from it."+ },+ {+ "number": "18",+ "name": "NC",+ "type": "unconnected",+ "description": "No connect, not bonded to die; can be connected to the ground plane."+ },+ {+ "number": "19",+ "name": "DGND",+ "type": "power_in",+ "description": "Digital ground, to be tied to AGND and then to a clean system ground while keeping high-current return paths away from it."+ },+ {+ "number": "20",+ "name": "SDA",+ "type": "bidirectional",+ "description": "SMBus data line."+ },+ {+ "number": "21",+ "name": "SCL",+ "type": "input",+ "description": "SMBus clock line."+ },+ {+ "number": "22",+ "name": "SMBA",+ "type": "output",+ "description": "SMBus alert line, active low."+ },+ {+ "number": "23",+ "name": "VREF",+ "type": "power_out",+ "description": "Internally generated precision 2.82V reference used for analog-to-digital conversion, which needs a 1 µF ceramic bypass capacitor to ground."+ },+ {+ "number": "24",+ "name": "DIODE",+ "type": "passive",+ "description": "External temperature-sensing connection, to be tied to a diode-configured MMBT3904 NPN transistor."+ },+ {+ "number": "25",+ "name": "EP",+ "type": "passive",+ "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."+ }+ ],+ "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 package hint says WQFN-24-EP(4x5). The provided pages name the package only as WQFN-24 / WQFN (N; Pages 5-32 of the datasheet were not provided. Pin data comes from pages 2-3 and the ordering and pa; The exposed pad is printed as 'PAD' in the pin table, not as a numbered pin. It is listed with that ",+ "exposed pad 25 added from the footprint",+ "dropped thermal pad ['EP'] absent from footprint"+ ],+ "pages_sent": 7,+ "cost_usd": 0.0602,+ "at": "2026-10-08T15:48:25"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/lm25056a",+ "pages": 38,+ "sha256": "f097a3dedf36217b",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 25,+ "described": 25,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ },+ "models_3d": [+ {+ "file": "lm25056apsq.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 4,+ 5,+ 0.77+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "dd34955bd2f41c7d5d4f45257df2b8077e42f694598de69e58ad55ad191eecae",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "lm25056apsq-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 4,+ 5,+ 0.77+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "6be66e5a14857a7ae0e2f4b75264712fcd5fdc3ee810b2b32377dddfaa0aa798",+ "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]"+ }+}