component
UC2902N
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Texas Instruments Power Management - Specialized, PDIP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+44@@ -0,0 +1,44 @@+# UC2902N++**Texas Instruments** · Power Management - Specialized · PDIP-8++UC2902N from Texas Instruments, in a PDIP-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 | Local power supply return and signal ground; all voltages are referenced to GND. |+| 2 | SENSE | input | Inverting input of the current sense amplifier, rated -5 V to 5 V absolute input voltage range. |+| 3 | ADJ | output | Current output of the adjust amplifier circuit (NPN collector), absolute output current -1 mA to 30 mA. |+| 4 | ADJR | output | Adjust amplifier range set (NPN emitter), absolute input voltage -0.3 V to 4 V; a resistor to GND sets the adjust current (about 360 Ω gives about 5 mA in the typical application). |+| 5 | COMP | bidirectional | Output of the error amplifier and input of the adjust amplifier, absolute input voltage -0.3 V to 4 V. |+| 6 | SHARE− | input | Reference for the SHARE+ pin and the system ground connection of the share bus, absolute voltage -0.3 V to 10 V. |+| 7 | SHARE+ | bidirectional | Positive input from the share bus or drive-to-share bus, absolute voltage -0.3 V to 10 V and output current -100 mA to 10 mA. |+| 8 | VCC | power_in | Local power supply (positive), operating range 2.7 V to 20 V with absolute maximum -0.3 V to 20 V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | PDIP-8 |+| Category | Power Management (PMIC) |+| Pins | 8 |++## CAD (KiCad official)++- Symbol: `UC2902N`+- Footprint: `Package_DIP:DIP-8_W7.62mm`+- 3D model: PDIP-8 (KiCad packages3D, STEP)+- 3D model files: `uc2902n-etched.step` / `uc2902n-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `uc2902n.step` / `uc2902n.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/uc2902) (17 pp, sha256 `6652b47563ad672c`, 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/uc2902n-datasheet.pdf)
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Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power management (pmic)",+ "uc2902n",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "uc2902n.kicad_sym",+ "uc2902n.kicad_mod",+ "uc2902n.glb",+ "uc2902n.step",+ "uc2902n.lbr",+ "docs/hero.png",+ "docs/uc2902n-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "uc2902n-hero.glb",+ "uc2902n-hero.overlay.json"+ ],+ "component": {+ "mpn": "UC2902N",+ "manufacturer": "Texas Instruments",+ "package": "PDIP-8",+ "pin_count": 8,+ "category": "Power Management (PMIC)",+ "subcategory": "Power Management - Specialized",+ "datasheet": "https://www.ti.com/cn/lit/gpn/uc2902",+ "parts": {+ "symbol": "uc2902n.kicad_sym",+ "footprint": "uc2902n.kicad_mod",+ "model_3d": "uc2902n-hero.glb",+ "model_3d_plain": "uc2902n.glb",+ "model_3d_step": "uc2902n-etched.step",+ "model_3d_step_plain": "uc2902n.step",+ "lbr": "uc2902n.lbr"+ },+ "distributor_links": {+ "lcsc": "C1575075",+ "digikey": "2156-UC2902N-ND",+ "mouser": "595-UC2902N"+ },+ "distributor_check": {+ "checked_at": "2026-10-08T14:43:11Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "2156-UC2902N-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "595-UC2902N",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "GND",+ "type": "power_in",+ "description": "Local power supply return and signal ground; all voltages are referenced to GND."+ },+ {+ "number": "2",+ "name": "SENSE",+ "type": "input",+ "description": "Inverting input of the current sense amplifier, rated -5 V to 5 V absolute input voltage range."+ },+ {+ "number": "3",+ "name": "ADJ",+ "type": "output",+ "description": "Current output of the adjust amplifier circuit (NPN collector), absolute output current -1 mA to 30 mA."+ },+ {+ "number": "4",+ "name": "ADJR",+ "type": "output",+ "description": "Adjust amplifier range set (NPN emitter), absolute input voltage -0.3 V to 4 V; a resistor to GND sets the adjust current (about 360 Ω gives about 5 mA in the typical application)."+ },+ {+ "number": "5",+ "name": "COMP",+ "type": "bidirectional",+ "description": "Output of the error amplifier and input of the adjust amplifier, absolute input voltage -0.3 V to 4 V."+ },+ {+ "number": "6",+ "name": "SHARE−",+ "type": "input",+ "description": "Reference for the SHARE+ pin and the system ground connection of the share bus, absolute voltage -0.3 V to 10 V."+ },+ {+ "number": "7",+ "name": "SHARE+",+ "type": "bidirectional",+ "description": "Positive input from the share bus or drive-to-share bus, absolute voltage -0.3 V to 10 V and output current -100 mA to 10 mA."+ },+ {+ "number": "8",+ "name": "VCC",+ "type": "power_in",+ "description": "Local power supply (positive), operating range 2.7 V to 20 V with absolute maximum -0.3 V to 20 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 terminal table lists ADJ as type 'I' but describes it as a current output (NPN collect; Datasheet types are 'O' for ADJR and 'I/O' for COMP and SHARE+; mapped to output and bidirectional a; SHARE− is listed as type 'I' in the terminal table; mapped to input. The description also notes the "+ ],+ "pages_sent": 17,+ "cost_usd": 0.069,+ "at": "2026-10-08T14:42:55"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/uc2902",+ "pages": 17,+ "sha256": "6652b47563ad672c",+ "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": "uc2902n.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "body on z = 0, through-hole leads below",+ "extents_mm": [+ 7.874,+ 9.27,+ 6.98+ ],+ "zmin_mm": -3.3,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "4a377a56a8d9e9c0b86c095ef9ecc1869ac19e7f5069a3247b294250bf4f235d",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "uc2902n-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "body on z = 0, through-hole leads below",+ "extents_mm": [+ 7.874,+ 9.27,+ 6.98+ ],+ "zmin_mm": -3.3,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "ef33f604a4d3be83514547af28595b79f4c377275a609de6c7abc7334be316c1",+ "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]"+ }+}