component
NCP1252CDR2G
Public Made by Adomby adom
onsemi AC-DC Controllers & Regulators, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715716717718719720721722723724
{
"schema_version": 1,
"type": "component",
"slug": "ncp1252cdr2g",
"title": "NCP1252CDR2G",
"brief": "onsemi AC-DC Controllers & Regulators, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
"license": "CC-BY-SA-4.0",
"tags": [
"component",
"power management ics",
"ncp1252cdr2g",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "NCP1252CDR2G",
"manufacturer": "onsemi",
"package": "SOIC-8",
"pin_count": 8,
"category": "Power Management ICs",
"subcategory": "AC-DC Controllers & Regulators",
"datasheet": "https://www.onsemi.com/pdf/datasheet/ncp1252c-d.pdf",
"parts": {
"symbol": "ncp1252cdr2g.kicad_sym",
"footprint": "ncp1252cdr2g.kicad_mod",
"model_3d": "ncp1252cdr2g-hero.glb",
"model_3d_plain": "ncp1252cdr2g-etched.glb",
"model_3d_step": "ncp1252cdr2g-etched.step",
"model_3d_step_plain": "ncp1252cdr2g.step",
"lbr": "ncp1252cdr2g.lbr"
},
"distributor_links": {
"lcsc": "C904429",
"digikey": "NCP1252CDR2GOSTR-ND",
"mouser": "863-NCP1252CDR2G"
},
"distributor_check": {
"checked_at": "2026-10-31T09:29:45Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "NCP1252CDR2GOSTR-ND",
"status": "found",
"lifecycle": "Active"
},
"mouser": {
"pn": "863-NCP1252CDR2G",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "FB",
"type": "input",
"description": "Feedback input that connects directly to an optocoupler collector."
},
{
"number": "2",
"name": "BO",
"type": "input",
"description": "Brown-out input that monitors the input voltage image to provide brown-out protection."
},
{
"number": "3",
"name": "CS",
"type": "input",
"description": "Current sense input that monitors the primary current and allows selection of the ramp compensation amplitude."
},
{
"number": "4",
"name": "RT",
"type": "passive",
"description": "Timing element pin where a resistor connected to ground fixes the switching frequency."
},
{
"number": "5",
"name": "GND",
"type": "power_in",
"description": "The controller ground pin."
},
{
"number": "6",
"name": "Drv",
"type": "output",
"description": "Driver output that connects to the MOSFET gate, with a maximum voltage of -0.3 V to VCC."
},
{
"number": "7",
"name": "VCC",
"type": "power_in",
"description": "Supply input accepting 8 V up to 28 V continuous (30 V transient for 10 ms with IVcc < 20 mA), with a maximum injected current of 20 mA."
},
{
"number": "8",
"name": "SSTART",
"type": "passive",
"description": "Soft-start pin where a capacitor connected to ground selects the soft-start duration; it is grounded during the delay timer."
}
],
"provenance": {
"extractor": "extract_pins 0.3",
"factory_chain": {
"factory": "2.0.0",
"extractor": "extract_pins 0.3",
"primary_model": "claude-sonnet-5-5",
"primary_mode": "text",
"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: Pin 7 description gives VCC range 8 V to 28 V, but the features list on page 1 says 9 V to 28 V. The; The datasheet does not give electrical types. RT and SSTART were classed as passive because they con"
],
"pages_sent": 9,
"cost_usd": 0.1095,
"at": "2026-10-31T09:29:30"
},
"datasheet": {
"url": "https://www.onsemi.com/pdf/datasheet/ncp1252c-d.pdf",
"pages": 22,
"sha256": "38a2460f33874aaf",
"source_tier": "mfr"
},
"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": "ncp1252cdr2g.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": "2026-10-31",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "ncp1252cdr2g-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": "702bfcac2461a5359507234be01049ada78dc39b5e3afbd139d9c02c8dedd20f",
"checked": "2026-10-31",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
],
"package_dims": {
"package_code": "SOIC-8 NB, CASE 751-07",
"source_page": 20,
"D": {
"nom_mm": 4.9,
"range_mm": [
4.8,
5
]
},
"E1": {
"nom_mm": 3.9,
"range_mm": [
3.8,
4
]
},
"E": {
"nom_mm": 6,
"range_mm": [
5.8,
6.2
]
},
"e": {
"nom_mm": 1.27,
"range_mm": [
null,
null
]
},
"A": {
"nom_mm": 1.55,
"range_mm": [
1.35,
1.75
]
},
"source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
"model_check": {
"file": "ncp1252cdr2g.step",
"verdict": "PASS",
"reasons": [
"height and body within the datasheet's package drawing"
],
"by": "factory/package_fit.py"
}
}
},
"metadata": {
"specs": {
"Manufacturer": "onsemi",
"Package": "SOIC-8",
"Category": "Power Management ICs",
"Pins": "8"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "38a2460f33874aaf9cebeba40ce2aa71ba5b0e7fe0578188ed0ebe711c770f94",
"rows": [
{
"name": "Startup threshold, A/B/C versions",
"symbol": "VCC(on)",
"kind": "electrical",
"unit": "V",
"min": 9.4,
"typ": 10,
"max": 10.6,
"conditions": "VCC increasing, A, B, C versions",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Minimum operating voltage",
"symbol": "VCC(off)",
"kind": "electrical",
"unit": "V",
"min": 8.4,
"typ": 9,
"max": 9.6,
"conditions": "VCC decreasing",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Hysteresis VCC(on) to VCC(min)",
"symbol": "VCC(HYS)",
"kind": "electrical",
"unit": "V",
"min": 0.9,
"typ": 1,
"max": null,
"conditions": "A, B and C versions",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Internal IC consumption, DRV open",
"symbol": "ICC2",
"kind": "electrical",
"unit": "mA",
"min": 0.5,
"typ": 1.4,
"max": 2.2,
"conditions": "Fsw =100 kHz, DRV = open",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Internal IC consumption, CDRV=1 nF",
"symbol": "ICC3",
"kind": "electrical",
"unit": "mA",
"min": 2,
"typ": 2.7,
"max": 3.5,
"conditions": "Fsw =100 kHz, CDRV = 1 nF",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Current sense voltage threshold",
"symbol": "VILIM",
"kind": "electrical",
"unit": "V",
"min": 0.92,
"typ": 1,
"max": 1.08,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Propagation delay CS to gate off",
"symbol": "tILIM",
"kind": "timing",
"unit": "ns",
"min": null,
"typ": 70,
"max": 150,
"conditions": "From CS detected to gate turned off",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Internal ramp compensation voltage level",
"symbol": "Vramp",
"kind": "electrical",
"unit": "V",
"min": 3.15,
"typ": 3.5,
"max": 3.85,
"conditions": "@ 25°C (Note 4)",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Oscillator frequency",
"symbol": "fOSC",
"kind": "electrical",
"unit": "kHz",
"min": 92,
"typ": 100,
"max": 108,
"conditions": "RT = 43 k & DRV pin = 47 k",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Oscillator frequency",
"symbol": "fOSC",
"kind": "electrical",
"unit": "kHz",
"min": 425,
"typ": 500,
"max": 550,
"conditions": "RT = 8.5 k & DRV pin = 47 k",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Maximum operating frequency",
"symbol": "fMAX",
"kind": "electrical",
"unit": "kHz",
"min": 500,
"typ": null,
"max": null,
"conditions": "Note 3",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Maximum duty-cycle, C version",
"symbol": "DCmaxC",
"kind": "electrical",
"unit": "%",
"min": 61,
"typ": 65,
"max": 69,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "FB pin maximum current",
"symbol": "IFB",
"kind": "electrical",
"unit": "mA",
"min": 1.5,
"typ": null,
"max": null,
"conditions": "FB pin = GND",
"source_page": 4,
"source": "datasheet"
},
{
"name": "DRV source resistance",
"symbol": "RSRC",
"kind": "electrical",
"unit": "Ω",
"min": null,
"typ": 10,
"max": 30,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "DRV sink resistance",
"symbol": "RSINK",
"kind": "electrical",
"unit": "Ω",
"min": null,
"typ": 6,
"max": 19,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Start-up current, controller disabled",
"symbol": "ICC1",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": null,
"max": 100,
"conditions": "VCC < VCC(on) & VCC increasing from zero",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Clamping voltage",
"symbol": "VCL",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 15,
"max": 18,
"conditions": "VCC = 25 V, RDRV = 47 k, CDRV = 1 nF",
"source_page": 5,
"source": "datasheet"
},
{
"name": "High-state voltage drop",
"symbol": "VDRV(clamp)",
"kind": "electrical",
"unit": "mV",
"min": null,
"typ": 50,
"max": 500,
"conditions": "VCC = VCC(min) + 100 mV, RDRV = 47 k, CDRV = 1 nF",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Skip cycle level",
"symbol": "Vskip",
"kind": "electrical",
"unit": "V",
"min": 0.2,
"typ": 0.3,
"max": 0.4,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Soft-start charge current",
"symbol": "ISS",
"kind": "electrical",
"unit": "µA",
"min": 8.8,
"typ": 10,
"max": 11,
"conditions": "SS pin = GND",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Soft start completion voltage threshold",
"symbol": "VSS",
"kind": "electrical",
"unit": "V",
"min": 3.5,
"typ": 4,
"max": 4.5,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Internal delay before soft start",
"symbol": "SSdelay",
"kind": "timing",
"unit": "ms",
"min": 100,
"typ": 120,
"max": 155,
"conditions": "When VCC(on) is reached, A, B and C versions only",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Current sense fault voltage level",
"symbol": "FCS",
"kind": "electrical",
"unit": "V",
"min": 0.9,
"typ": 1,
"max": 1.1,
"conditions": "Triggering the timer",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Fault timer delay, A/B/C/D versions",
"symbol": "Tfault",
"kind": "timing",
"unit": "ms",
"min": 10,
"typ": 15,
"max": 20,
"conditions": "When CS pin > FCS",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Brown-out voltage",
"symbol": "VBO",
"kind": "electrical",
"unit": "V",
"min": 0.974,
"typ": 1,
"max": 1.026,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Brown-out hysteresis current source",
"symbol": "IBO",
"kind": "electrical",
"unit": "µA",
"min": 8.8,
"typ": 10,
"max": 11.2,
"conditions": "-5°C ≤ TJ ≤ +125°C",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Brown-out hysteresis current source",
"symbol": "IBO",
"kind": "electrical",
"unit": "µA",
"min": 8.6,
"typ": 10,
"max": 11.2,
"conditions": "-25°C ≤ TJ ≤ +125°C",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Power supply voltage, transient",
"symbol": "VCC",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 30,
"conditions": "10 ms with IVcc < 20 mA",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Power supply voltage, continuous",
"symbol": "VCC",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 28,
"conditions": "Vcc pin, continuous",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Maximum current injected into pin 7",
"symbol": "IVcc",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 20,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Maximum voltage on DRV pin",
"symbol": "VDRV",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": null,
"conditions": "-0.3 to VCC",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Maximum voltage on low power pins",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 10,
"conditions": "except pin 6, 7",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Thermal resistance junction-to-air, SOIC8",
"symbol": "RθJA",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 169,
"max": null,
"conditions": "SOIC8",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Maximum junction temperature",
"symbol": "TJ(MAX)",
"kind": "absolute_maximum",
"unit": "°C",
"min": null,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Storage temperature range",
"symbol": "TSTG",
"kind": "absolute_maximum",
"unit": "°C",
"min": -60,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "ESD capability, HBM",
"symbol": "ESDHBM",
"kind": "absolute_maximum",
"unit": "kV",
"min": null,
"typ": null,
"max": 1.8,
"conditions": "HBM model",
"source_page": 2,
"source": "datasheet"
},
{
"name": "ESD capability, MM",
"symbol": "ESDMM",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 200,
"conditions": "Machine Model",
"source_page": 2,
"source": "datasheet"
}
]
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"ncp1252cdr2g"
],
"discovery_pitch": "NCP1252CDR2G (onsemi) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
"author": {
"name": "Ray",
"email": "[email protected]"
},
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"ncp1252cdr2g.kicad_sym",
"ncp1252cdr2g.kicad_mod",
"ncp1252cdr2g.glb",
"ncp1252cdr2g.step",
"ncp1252cdr2g.lbr",
"docs/hero.png",
"docs/ncp1252cdr2g-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"ncp1252cdr2g-hero.glb",
"ncp1252cdr2g-hero.overlay.json",
"ncp1252cdr2g-etched.glb"
],
"visibility": {
"public": true
}
}