component
OB3655PCPA-H
Public Made by Adomby adom
OB(On-Bright Elec) LED Drivers, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599
{
"schema_version": 1,
"type": "component",
"slug": "ob3655pcpa-h",
"title": "OB3655PCPA-H",
"brief": "OB(On-Bright Elec) LED Drivers, 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",
"led drivers",
"ob3655pcpa-h",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "OB3655PCPA-H",
"manufacturer": "OB(On-Bright Elec)",
"package": "SOP-8",
"pin_count": 8,
"category": "LED Drivers",
"subcategory": "LED Drivers",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/a13f1e7aa01b8bec22a94731606c26ed.pdf",
"parts": {
"symbol": "ob3655pcpa-h.kicad_sym",
"footprint": "ob3655pcpa-h.kicad_mod",
"model_3d": "ob3655pcpa-h-hero.glb",
"model_3d_plain": "ob3655pcpa-h-etched.glb",
"model_3d_step": "ob3655pcpa-h-etched.step",
"model_3d_step_plain": "ob3655pcpa-h.step",
"lbr": "ob3655pcpa-h.lbr"
},
"distributor_links": {
"lcsc": "C48392380"
},
"distributor_check": {
"checked_at": "2026-10-22T01:06:14Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "no match"
},
"mouser": {
"pn": null,
"status": "no match"
}
},
"pins": [
{
"number": "1",
"name": "VDD",
"type": "power_in",
"description": "Power supply input; VDD_clamp is 28-32 V, UVLO(ON) 7-9 V and UVLO(OFF) 16-20 V, and the absolute maximum VDD voltage is -0.3 to 40 V."
},
{
"number": "2",
"name": "FB",
"type": "input",
"description": "Voltage feedback terminal used for quasi-resonant detection (FB falls below 0.05 V typical), output over-voltage protection at 1.42-1.58 V, and short-circuit detection near 0.25 V; absolute maximum -0.3 to 7 V."
},
{
"number": "3",
"name": "GND",
"type": "power_in",
"description": "Power ground for the device."
},
{
"number": "4",
"name": "CMP",
"type": "bidirectional",
"description": "Loop compensation pin with a capacitor connected between CMP and GND; CMP voltage is limited to -0.3 to 7 V absolute maximum and its down-clamp voltage is 1.0 V."
},
{
"number": "5",
"name": "CS",
"type": "input",
"description": "Current sensing terminal, with a sense resistor connected between CS and GND for cycle-by-cycle current limiting at an over-current threshold of 0.5 V; absolute maximum -0.3 to 7 V."
},
{
"number": "6",
"name": "NC",
"type": "unconnected",
"description": "Non-connection pin, listed as NC in the terminal assignment table."
},
{
"number": "7",
"name": "DRAIN",
"type": "bidirectional",
"description": "MOSFET drain terminal; the drain-source breakdown voltage (BVdss) is listed as 650 V for OB3655PCP-H."
},
{
"number": "8",
"name": "DRAIN",
"type": "bidirectional",
"description": "MOSFET drain terminal (pin 8 is shared with pin 7 per the terminal table); the drain-source breakdown voltage (BVdss) is listed as 650 V for OB3655PCP-H."
}
],
"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 SOP8 pin diagram on page 2 is garbled in text extraction. Pin numbers and names were taken from ; Pins 7 and 8 are both DRAIN and are listed together as '7/8' in the source table; they are given as ; The ordering part OB3655PCPA-H (SOP8, Halogen-free, T&R) is not itself listed in the BVdss table on "
],
"pages_sent": 12,
"cost_usd": 0.049,
"at": "2026-10-22T01:04:45"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/a13f1e7aa01b8bec22a94731606c26ed.pdf",
"pages": 12,
"sha256": "1b25e725b953878d",
"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": "ob3655pcpa-h.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": "2026-10-22",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "ob3655pcpa-h-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": "0010447f243e5d581a09eba60bed97c9ab5733b61363b68a620150a56f6a1354",
"checked": "2026-10-22",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "OB(On-Bright Elec)",
"Package": "SOP-8",
"Category": "LED Drivers",
"Pins": "8"
},
"appearance": {
"housing": {
"quote": "Body Surface Max. 135℃ Absolute Maximum Ratings",
"page": 2,
"doc": "ds.pdf",
"material": "Abs"
},
"version": 1,
"datasheet_sha256": "1b25e725b953878dda1ffb86a8e04c7de6dfe66f6fc2619c9e478aa3d183f166"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "1b25e725b953878dda1ffb86a8e04c7de6dfe66f6fc2619c9e478aa3d183f166",
"rows": [
{
"name": "VDD Voltage",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 40,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "CS Input Voltage",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 7,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "FB Input Voltage",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 7,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "CMP Voltage",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 7,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Min/Max Operating Junction Temperature",
"symbol": "TJ",
"kind": "absolute_maximum",
"unit": "℃",
"min": -40,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Min/Max Storage Temperature",
"symbol": "Tstg",
"kind": "absolute_maximum",
"unit": "℃",
"min": -55,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Lead Temperature (Soldering)",
"symbol": "",
"kind": "absolute_maximum",
"unit": "℃",
"min": null,
"typ": null,
"max": 260,
"conditions": "Soldering, 10secs",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Body Surface Max. Temperature",
"symbol": "",
"kind": "recommended_operating",
"unit": "℃",
"min": null,
"typ": null,
"max": 135,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Package thermal resistance junction-to-ambient (SOP8)",
"symbol": "RθJA",
"kind": "thermal",
"unit": "℃/W",
"min": null,
"typ": 90,
"max": null,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Start up current",
"symbol": "I start-up",
"kind": "electrical",
"unit": "uA",
"min": null,
"typ": 3,
"max": 7,
"conditions": "VDD=UVLO(OFF)-1V",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Operation current",
"symbol": "I op",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 0.4,
"max": 0.6,
"conditions": "VDD=20V, no loading",
"source_page": 6,
"source": "datasheet"
},
{
"name": "VDD under voltage lockout exit",
"symbol": "UVLO(OFF)",
"kind": "electrical",
"unit": "V",
"min": 16,
"typ": 18,
"max": 20,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "VDD under voltage lockout enter",
"symbol": "UVLO(ON)",
"kind": "electrical",
"unit": "V",
"min": 7,
"typ": 8,
"max": 9,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "VDD clamping Voltage",
"symbol": "VDD_clamp",
"kind": "electrical",
"unit": "V",
"min": 28,
"typ": 30,
"max": 32,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Output Over Voltage Protection",
"symbol": "Vout_ovp",
"kind": "electrical",
"unit": "V",
"min": 1.42,
"typ": 1.5,
"max": 1.58,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Error Amplifier Reference Voltage",
"symbol": "Vref",
"kind": "electrical",
"unit": "V",
"min": 0.196,
"typ": 0.2,
"max": 0.204,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "LEB time",
"symbol": "TLEB",
"kind": "timing",
"unit": "us",
"min": null,
"typ": 0.4,
"max": null,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Over Current Threshold",
"symbol": "Vth_ocp",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 0.5,
"max": null,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Output Short Circuit Protection",
"symbol": "Vout_scp",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 0.25,
"max": null,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Maximum Sink current from FB",
"symbol": "I_FB",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 2,
"max": null,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Maximum Clamping Frequency",
"symbol": "Fmax",
"kind": "electrical",
"unit": "KHz",
"min": null,
"typ": 100,
"max": null,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Maximum Off Time",
"symbol": "Toff_max",
"kind": "timing",
"unit": "us",
"min": null,
"typ": 100,
"max": null,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Minimum Off Time",
"symbol": "Toff_min",
"kind": "timing",
"unit": "us",
"min": null,
"typ": 2,
"max": null,
"conditions": "CS>0.15V",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Minimum Off Time",
"symbol": "Toff_min",
"kind": "timing",
"unit": "us",
"min": null,
"typ": 0.5,
"max": null,
"conditions": "CS<=0.15V",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Maximum On Time",
"symbol": "Ton_max",
"kind": "timing",
"unit": "us",
"min": null,
"typ": 25,
"max": null,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Error Amplifier Transconductance",
"symbol": "Gm",
"kind": "electrical",
"unit": "uS",
"min": null,
"typ": 40,
"max": null,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "CMP Pin Down_clamp Voltage",
"symbol": "Vclamp_cmp",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 1,
"max": null,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Thermal regulation threshold",
"symbol": "TTF",
"kind": "thermal",
"unit": "℃",
"min": null,
"typ": 145,
"max": null,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Over Temperature Protection",
"symbol": "OTP",
"kind": "thermal",
"unit": "℃",
"min": null,
"typ": 170,
"max": null,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "MOSFET Drain-Source Breakdown Voltage (OB3655PCP-H)",
"symbol": "BVdss",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 650,
"max": null,
"conditions": "",
"source_page": 6,
"source": "datasheet"
}
]
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"ob3655pcpa-h"
],
"discovery_pitch": "OB3655PCPA-H (OB(On-Bright Elec)) 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",
"ob3655pcpa-h.kicad_sym",
"ob3655pcpa-h.kicad_mod",
"ob3655pcpa-h.glb",
"ob3655pcpa-h.step",
"ob3655pcpa-h.lbr",
"docs/hero.png",
"docs/ob3655pcpa-h-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"ob3655pcpa-h-hero.glb",
"ob3655pcpa-h-hero.overlay.json",
"ob3655pcpa-h-etched.glb"
],
"visibility": {
"public": true
}
}