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UC3907DW
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Texas Instruments Power Management - Specialized, SOIC-16-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+52@@ -0,0 +1,52 @@+# UC3907DW++**Texas Instruments** · Power Management - Specialized · SOIC-16-300mil++UC3907DW from Texas Instruments, in a SOIC-16-300mil. 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 | C/S OUT | output | Output of the current-sense amplifier, whose gain is internally fixed at 20; an external capacitor to ground can reduce its bandwidth. |+| 2 | C/S (+) | input | Non-inverting differential input of the current-sense amplifier for an external shunt in the power-return line, with common-mode range up to VCC − 2 V. |+| 3 | C/S (-) | input | Inverting differential input of the current-sense amplifier, used with C/S (+) to set a maximum shunt drop between 50 mV and 500 mV. |+| 4 | (-) SENSE | input | High-impedance remote sense of system ground, treated as the true ground to which all voltages are referenced. |+| 5 | POWER RETURN | power_in | Most negative supply return, which can range from 0 V to 5 V below (-) SENSE and should be connected as close to the power source as possible. |+| 6 | ARTIFICIAL GND | passive | Low-impedance internal ground exactly 250 mV above (-) SENSE that supplies the control bias and operating currents. |+| 7 | VREF | power_out | Bandgap reference set at 2.0 V with respect to (-) SENSE (±1.5%), with undervoltage lockout until the reference is in regulation. |+| 8 | ISET | output | Current-sinking drive amplifier output, normally set by a resistor to ground, with a 0.25 V to 4.1 V signal available in non-isolated use. |+| 9 | OPTO DRIVE | output | Current-sinking output for driving an optocoupler biased from 4.5 V to 35 V, with current up to 20 mA. |+| 10 | VCC | power_in | Supply input for the device, specified for 4.5 V to 35 V operation with a 4.4 V typical undervoltage lockout startup threshold. |+| 11 | (+) SENSE | input | High-impedance sense input of the voltage feedback amplifier, at which the 2 V reference is trimmed to ±1.25%. |+| 12 | COMP | passive | Voltage error amplifier output and compensation node, clamped internally to 2.0 V, where overall loop compensation is normally applied. |+| 13 | ADJ INPUT | input | Input of the transconductance adjust amplifier, which carries a built-in 50 mV offset on its inverting input. |+| 14 | ADJ OUT | output | Adjust amplifier output that can raise the reference seen by the voltage amplifier by up to 100 mV (about 5% range) for current sharing. |+| 15 | CURRENT SHARE BUS | bidirectional | Common share bus connecting all paralleled modules, protected against shorts to ground and voltages up to 50 V. |+| 16 | STATUS INDICATE | output | Open-collector output that is pulled low to flag the module acting as master, with a sink current rating of 20 mA. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-16-300mil |+| Category | Power Management (PMIC) |+| Pins | 16 |++## CAD (KiCad official)++- Symbol: `UC3907DW`+- Footprint: `Package_SO:SOIC-16_3.9x9.9mm_P1.27mm`+- 3D model: SOIC-16-300mil (KiCad packages3D, STEP)+- 3D model files: `uc3907dw-etched.step` / `uc3907dw-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `uc3907dw.step` / `uc3907dw.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/uc2907) (13 pp, sha256 `e0d0562c59ff546b`, 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/uc3907dw-datasheet.pdf)
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Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power management (pmic)",+ "uc3907dw",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "uc3907dw.kicad_sym",+ "uc3907dw.kicad_mod",+ "uc3907dw.glb",+ "uc3907dw.step",+ "uc3907dw.lbr",+ "docs/hero.png",+ "docs/uc3907dw-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "uc3907dw-hero.glb",+ "uc3907dw-hero.overlay.json"+ ],+ "component": {+ "mpn": "UC3907DW",+ "manufacturer": "Texas Instruments",+ "package": "SOIC-16-300mil",+ "pin_count": 16,+ "category": "Power Management (PMIC)",+ "subcategory": "Power Management - Specialized",+ "datasheet": "https://www.ti.com/cn/lit/gpn/uc2907",+ "parts": {+ "symbol": "uc3907dw.kicad_sym",+ "footprint": "uc3907dw.kicad_mod",+ "model_3d": "uc3907dw-hero.glb",+ "model_3d_plain": "uc3907dw.glb",+ "model_3d_step": "uc3907dw-etched.step",+ "model_3d_step_plain": "uc3907dw.step",+ "lbr": "uc3907dw.lbr"+ },+ "distributor_links": {+ "lcsc": "C1519364",+ "digikey": "2156-UC3907DW-ND",+ "mouser": "595-UC3907DW"+ },+ "distributor_check": {+ "checked_at": "2026-10-08T02:01:18Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "2156-UC3907DW-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "595-UC3907DW",+ "status": "found",+ "lifecycle": "Obsolete"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "C/S OUT",+ "type": "output",+ "description": "Output of the current-sense amplifier, whose gain is internally fixed at 20; an external capacitor to ground can reduce its bandwidth."+ },+ {+ "number": "2",+ "name": "C/S (+)",+ "type": "input",+ "description": "Non-inverting differential input of the current-sense amplifier for an external shunt in the power-return line, with common-mode range up to VCC − 2 V."+ },+ {+ "number": "3",+ "name": "C/S (–)",+ "type": "input",+ "description": "Inverting differential input of the current-sense amplifier, used with C/S (+) to set a maximum shunt drop between 50 mV and 500 mV."+ },+ {+ "number": "4",+ "name": "(–) SENSE",+ "type": "input",+ "description": "High-impedance remote sense of system ground, treated as the true ground to which all voltages are referenced."+ },+ {+ "number": "5",+ "name": "POWER RETURN",+ "type": "power_in",+ "description": "Most negative supply return, which can range from 0 V to 5 V below (-) SENSE and should be connected as close to the power source as possible."+ },+ {+ "number": "6",+ "name": "ARTIFICIAL GND",+ "type": "passive",+ "description": "Low-impedance internal ground exactly 250 mV above (-) SENSE that supplies the control bias and operating currents."+ },+ {+ "number": "7",+ "name": "VREF",+ "type": "power_out",+ "description": "Bandgap reference set at 2.0 V with respect to (-) SENSE (±1.5%), with undervoltage lockout until the reference is in regulation."+ },+ {+ "number": "8",+ "name": "ISET",+ "type": "output",+ "description": "Current-sinking drive amplifier output, normally set by a resistor to ground, with a 0.25 V to 4.1 V signal available in non-isolated use."+ },+ {+ "number": "9",+ "name": "OPTO DRIVE",+ "type": "output",+ "description": "Current-sinking output for driving an optocoupler biased from 4.5 V to 35 V, with current up to 20 mA."+ },+ {+ "number": "10",+ "name": "VCC",+ "type": "power_in",+ "description": "Supply input for the device, specified for 4.5 V to 35 V operation with a 4.4 V typical undervoltage lockout startup threshold."+ },+ {+ "number": "11",+ "name": "(+) SENSE",+ "type": "input",+ "description": "High-impedance sense input of the voltage feedback amplifier, at which the 2 V reference is trimmed to ±1.25%."+ },+ {+ "number": "12",+ "name": "COMP",+ "type": "passive",+ "description": "Voltage error amplifier output and compensation node, clamped internally to 2.0 V, where overall loop compensation is normally applied."+ },+ {+ "number": "13",+ "name": "ADJ INPUT",+ "type": "input",+ "description": "Input of the transconductance adjust amplifier, which carries a built-in 50 mV offset on its inverting input."+ },+ {+ "number": "14",+ "name": "ADJ OUT",+ "type": "output",+ "description": "Adjust amplifier output that can raise the reference seen by the voltage amplifier by up to 100 mV (about 5% range) for current sharing."+ },+ {+ "number": "15",+ "name": "CURRENT SHARE BUS",+ "type": "bidirectional",+ "description": "Common share bus connecting all paralleled modules, protected against shorts to ground and voltages up to 50 V."+ },+ {+ "number": "16",+ "name": "STATUS INDICATE",+ "type": "output",+ "description": "Open-collector output that is pulled low to flag the module acting as master, with a sink current rating of 20 mA."+ }+ ],+ "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 extracted text lists the SOIC-16 DW pin numbers and pin names in separate blocks, so the number-; Pin types are inferred because the datasheet gives no ERC classes. ARTIFICIAL GND is typed passive, ; The datasheet gives no supply or pin limits for the DW package beyond the general text. The packagin"+ ],+ "pages_sent": 13,+ "cost_usd": 0.0887,+ "at": "2026-10-08T02:01:00"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/uc2907",+ "pages": 13,+ "sha256": "e0d0562c59ff546b",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 16,+ "described": 16,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ },+ "models_3d": [+ {+ "file": "uc3907dw.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6,+ 9.9,+ 1.75+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "uc3907dw-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6,+ 9.9,+ 1.75+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "ec178298fb4ca03e5e0c51f9a6e84e982e13c7bc2a2663e284388fa97415160e",+ "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]"+ }+}