component
DK2649CC
Public Made by Adomby adom
Shenzhen DongKe Semicon AC-DC Controllers & Regulators, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
Ray
Set visibility: public
5617107
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574
{
"schema_version": 1,
"type": "component",
"slug": "dk2649cc",
"title": "DK2649CC",
"brief": "Shenzhen DongKe Semicon AC-DC Controllers & Regulators, SOP-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 supply chip",
"dk2649cc",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "DK2649CC",
"manufacturer": "Shenzhen DongKe Semicon",
"package": "SOP-8",
"pin_count": 8,
"category": "Power Supply Chip",
"subcategory": "AC-DC Controllers & Regulators",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/4b5a3918fc39b5f334ad79ebceb757dc.pdf",
"parts": {
"symbol": "dk2649cc.kicad_sym",
"footprint": "dk2649cc.kicad_mod",
"model_3d": "dk2649cc-hero.glb",
"model_3d_plain": "dk2649cc-etched.glb",
"model_3d_step": "dk2649cc-etched.step",
"model_3d_step_plain": "dk2649cc.step",
"lbr": "dk2649cc.lbr"
},
"distributor_links": {
"lcsc": "C3013892"
},
"distributor_check": {
"checked_at": "2026-11-05T15:36:09Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "no match"
},
"mouser": {
"pn": null,
"status": "no match"
}
},
"pins": [
{
"number": "1",
"name": "GND",
"type": "power_in",
"description": "Ground reference pin for the controller, which the datasheet lists as the chip's ground terminal."
},
{
"number": "2",
"name": "VDD",
"type": "power_in",
"description": "Supply pin with an operating range of 9 V to 34 V (typ. 17 V) for AC input 85 V to 265 V, with UVLO turn-off at 15.5 V to 17 V and overvoltage protection at 35 V to 38 V."
},
{
"number": "3",
"name": "FB",
"type": "input",
"description": "Feedback input where FB falling below 1.6 V enters burst (skip) mode and FB open-circuit voltage is 4.8 V to 6.2 V."
},
{
"number": "4",
"name": "CS",
"type": "input",
"description": "Current sense input for cycle-by-cycle over-current protection at 0.71 V to 0.8 V, with 270 ns leading-edge blanking and 40 kΩ input impedance."
},
{
"number": "5",
"name": "DRAIN",
"type": "passive",
"description": "Drain of the built-in 650 V high-voltage power MOSFET, which should have enlarged, tinned copper area for heat dissipation and at least 1.5 mm clearance from low-voltage parts."
},
{
"number": "6",
"name": "DRAIN",
"type": "passive",
"description": "Drain of the built-in 650 V high-voltage power MOSFET, which should have enlarged, tinned copper area for heat dissipation and at least 1.5 mm clearance from low-voltage parts."
},
{
"number": "7",
"name": "DRAIN",
"type": "passive",
"description": "Drain of the built-in 650 V high-voltage power MOSFET, which should have enlarged, tinned copper area for heat dissipation and at least 1.5 mm clearance from low-voltage parts."
},
{
"number": "8",
"name": "DRAIN",
"type": "passive",
"description": "Drain of the built-in 650 V high-voltage power MOSFET, which should have enlarged, tinned copper area for heat dissipation and at least 1.5 mm clearance from low-voltage parts."
}
],
"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": [],
"pages_sent": 9,
"cost_usd": 0.0344,
"at": "2026-11-05T15:36:02"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/4b5a3918fc39b5f334ad79ebceb757dc.pdf",
"pages": 9,
"sha256": "65f86e8fc8f68b47",
"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": "dk2649cc.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": "2026-11-05",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "dk2649cc-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": "0776192524ae1bb8366fa389d2cfc185fb7aa2aa0cd13191ff0da155883a1e2e",
"checked": "2026-11-05",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "Shenzhen DongKe Semicon",
"Package": "SOP-8",
"Category": "Power Supply Chip",
"Pins": "8"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "65f86e8fc8f68b47915a0b7001af0676f92b8e8f4d14dd17a157a89796f3dca1",
"rows": [
{
"name": "Operating temperature range",
"symbol": "TR",
"kind": "absolute_maximum",
"unit": "℃",
"min": -25,
"typ": null,
"max": 125,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Storage temperature range",
"symbol": "TSTG",
"kind": "absolute_maximum",
"unit": "℃",
"min": -55,
"typ": null,
"max": 155,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Junction temperature",
"symbol": "TJ",
"kind": "absolute_maximum",
"unit": "℃",
"min": -40,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Power MOSFET drain-source voltage",
"symbol": "VDRAIN_MAX",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 650,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "VDD supply voltage",
"symbol": "VDD",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 40,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "IDD supply current",
"symbol": "IDD",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 10,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "FB input voltage",
"symbol": "VFB",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 7,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "CS input voltage",
"symbol": "VCS",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 7,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "VDD operating voltage",
"symbol": "VDD",
"kind": "electrical",
"unit": "V",
"min": 9,
"typ": 17,
"max": 34,
"conditions": "AC input 85V-265V",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Startup current",
"symbol": "IDD_ST",
"kind": "electrical",
"unit": "uA",
"min": null,
"typ": 5,
"max": 20,
"conditions": "VDD=11V, test VDD pin current",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Operating current",
"symbol": "IOP",
"kind": "electrical",
"unit": "mA",
"min": 0.67,
"typ": 0.83,
"max": 1,
"conditions": "VDD=17V, VFB=3V, VCS=0V",
"source_page": 3,
"source": "datasheet"
},
{
"name": "UVLO turn-on (VDD falling, IC off) threshold",
"symbol": "Vuvlo(ON)",
"kind": "electrical",
"unit": "V",
"min": 7,
"typ": 7.7,
"max": 8.4,
"conditions": "VDD falls to IC off",
"source_page": 3,
"source": "datasheet"
},
{
"name": "UVLO turn-off (VDD rising, IC on) threshold",
"symbol": "Vuvlo(OFF)",
"kind": "electrical",
"unit": "V",
"min": 15.5,
"typ": 16,
"max": 17,
"conditions": "VDD rises to IC on",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Frequency-hopping protection voltage",
"symbol": "VDD_ET",
"kind": "electrical",
"unit": "V",
"min": 7.7,
"typ": 8.2,
"max": 8.7,
"conditions": "FB=0V, CS=0V",
"source_page": 3,
"source": "datasheet"
},
{
"name": "VDD overvoltage protection",
"symbol": "VOVP",
"kind": "electrical",
"unit": "V",
"min": 35,
"typ": 35.7,
"max": 38,
"conditions": "VDD=17V, VCS=0V, VFB=3V, VDD rises until DRAIN frequency disappears",
"source_page": 3,
"source": "datasheet"
},
{
"name": "FB open-loop voltage",
"symbol": "VFB_OPEN",
"kind": "electrical",
"unit": "V",
"min": 4.8,
"typ": 5.55,
"max": 6.2,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "FB short-circuit current",
"symbol": "IFB_SHORT",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 0.24,
"max": null,
"conditions": "VDD=17V, FB shorted to GND",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Green-mode threshold",
"symbol": "VTH_GREEN",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 2.2,
"max": null,
"conditions": "VDD=17V, VCS=0V, VFB=3V, FB falling, DRAIN frequency below 35KHz",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Burst-mode (frequency hopping) threshold",
"symbol": "VTH_BM",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 1.6,
"max": null,
"conditions": "VDD=17V, FB falling",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Leading-edge blanking time",
"symbol": "TLEB",
"kind": "electrical",
"unit": "ns",
"min": null,
"typ": 270,
"max": null,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "CS pin input impedance",
"symbol": "ZCS_IN",
"kind": "electrical",
"unit": "kΩ",
"min": null,
"typ": 40,
"max": null,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "CS overcurrent protection threshold",
"symbol": "VTH_OC",
"kind": "electrical",
"unit": "V",
"min": 0.71,
"typ": 0.77,
"max": 0.8,
"conditions": "VDD=17V, VFB=3V, CS rising to turn off power MOSFET",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Overcurrent protection delay",
"symbol": "TD_OC",
"kind": "electrical",
"unit": "ns",
"min": null,
"typ": 120,
"max": null,
"conditions": "Delay from overcurrent protection to start of MOSFET turn-off",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Oscillation frequency",
"symbol": "FOSC",
"kind": "electrical",
"unit": "KHz",
"min": 60,
"typ": 65,
"max": 70,
"conditions": "VDD=17V, VFB=3V, VCS=0V",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Maximum duty cycle",
"symbol": "DMAX",
"kind": "electrical",
"unit": "%",
"min": 65,
"typ": 70,
"max": 85,
"conditions": "VDD=17V, VFB=3.3V, VCS=0V",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Burst (frequency-hopping) frequency",
"symbol": "FBURST",
"kind": "electrical",
"unit": "KHz",
"min": null,
"typ": 25,
"max": null,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Frequency dither range",
"symbol": "ΔFOSC",
"kind": "electrical",
"unit": "%",
"min": -4,
"typ": null,
"max": 4,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Power MOSFET on-resistance",
"symbol": "RDS(ON)",
"kind": "electrical",
"unit": "Ω",
"min": 1.2,
"typ": 1.3,
"max": 1.4,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Overtemperature protection",
"symbol": "TOTP",
"kind": "electrical",
"unit": "℃",
"min": null,
"typ": 150,
"max": null,
"conditions": "",
"source_page": 3,
"source": "datasheet"
}
]
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"dk2649cc"
],
"discovery_pitch": "DK2649CC (Shenzhen DongKe Semicon) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
"author": {
"name": "Ray"
},
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"dk2649cc.kicad_sym",
"dk2649cc.kicad_mod",
"dk2649cc.glb",
"dk2649cc.step",
"dk2649cc.lbr",
"docs/hero.png",
"docs/dk2649cc-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"dk2649cc-hero.glb",
"dk2649cc-hero.overlay.json",
"dk2649cc-etched.glb"
],
"visibility": {
"public": true
}
}