component
OC6781
Public Made by Adomby adom
OCX LED Drivers, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493
{
"schema_version": 1,
"type": "component",
"slug": "oc6781",
"title": "OC6781",
"brief": "OCX 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",
"nixie tube driver-led driver",
"oc6781",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "OC6781",
"manufacturer": "OCX",
"package": "SOP-8",
"pin_count": 8,
"category": "Nixie Tube Driver/LED Driver",
"subcategory": "LED Drivers",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588918112750485504",
"parts": {
"symbol": "oc6781.kicad_sym",
"footprint": "oc6781.kicad_mod",
"model_3d": "oc6781-hero.glb",
"model_3d_plain": "oc6781-etched.glb",
"model_3d_step": "oc6781-etched.step",
"model_3d_step_plain": "oc6781.step",
"lbr": "oc6781.lbr"
},
"distributor_links": {
"lcsc": "C879355"
},
"distributor_check": {
"checked_at": "2026-10-18T02:32:21Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "no match"
},
"mouser": {
"pn": null,
"status": "no match"
}
},
"pins": [
{
"number": "1",
"name": "DRV",
"type": "output",
"description": "Gate drive output for the external power MOSFET, with an absolute maximum pin voltage of -0.3 to 8 V and rise and fall times of 50 ns each with a 500 pF load."
},
{
"number": "2",
"name": "VDD",
"type": "power_in",
"description": "Chip supply input with an operating range of 5 to 40 V, an undervoltage lockout at 4.8 V on rising VDD, and an absolute maximum of 45 V."
},
{
"number": "3",
"name": "EN",
"type": "input",
"description": "Chip enable input, active high, requiring at least 3.2 V for logic high and at most 0.8 V for logic low, with an absolute maximum of -0.3 to 45 V."
},
{
"number": "4",
"name": "ROSC",
"type": "input",
"description": "Switching frequency setting pin, where a resistor to GND sets about 450 kHz, a floating pin gives 500 kHz, and the datasheet example uses ROSC = 330 kΩ for 120 kHz, with an absolute maximum of -0.3 to 6 V."
},
{
"number": "5",
"name": "OVP",
"type": "input",
"description": "Output overvoltage detection input, where the OVP threshold is set by an external divider R1/R2 referenced to VREF = 1 V, with an absolute maximum of -0.3 to 6 V."
},
{
"number": "6",
"name": "VFB",
"type": "input",
"description": "LED output current feedback input, which the loop regulates to about 250 mV (240 to 260 mV) through the feedback resistor RFB, with an absolute maximum of -0.3 to 6 V."
},
{
"number": "7",
"name": "GND",
"type": "power_in",
"description": "Ground reference pin for the device."
},
{
"number": "8",
"name": "VCS",
"type": "input",
"description": "Inductor current sense input used for cycle-by-cycle peak current limiting with a 250 mV threshold (240 to 260 mV), with an absolute maximum of -0.3 to 6 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 only lists the SOP8 package for OC6781 (page 1 and page 2), so the pinout is taken fro; The pin functions and descriptions are on page 2, but the electrical limits quoted in the descriptio; The ROSC description is a condensed summary: the datasheet gives the frequency formula Fs = 1/(4.83*"
],
"pages_sent": 7,
"cost_usd": 0.0275,
"at": "2026-10-18T02:28:47"
},
"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588918112750485504",
"pages": 7,
"sha256": "f13a2a530b995b53",
"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": "oc6781.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": "2026-10-18",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "oc6781-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": "fb68fbae95e471e8e0b14228d73eafb83973eca6129604503aaeb6e19233147c",
"checked": "2026-10-18",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "OCX",
"Package": "SOP-8",
"Category": "Nixie Tube Driver/LED Driver",
"Pins": "8"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "f13a2a530b995b531d940676cf3c9c24548d9489ddc887ec8dc4f41db30d5bf8",
"rows": [
{
"name": "VDD 端最大电压 (VDD max voltage)",
"symbol": "VDD",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 45,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "EN 脚最大电压 (EN pin max voltage)",
"symbol": "VEN",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 45,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "DRV 脚最大电压 (DRV pin max voltage)",
"symbol": "VDRV",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 8,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "VFB、ROSC、OVP 和 VCS 脚电压 (VFB, ROSC, OVP and VCS pin voltage)",
"symbol": "VMAX",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 6,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "SOP8 封装最大功耗 (SOP8 max power dissipation)",
"symbol": "PSOP8",
"kind": "absolute_maximum",
"unit": "W",
"min": null,
"typ": null,
"max": 0.8,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "工作温度范围 (operating temperature range)",
"symbol": "TA",
"kind": "absolute_maximum",
"unit": "°C",
"min": -20,
"typ": null,
"max": 85,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "存储温度范围 (storage temperature range)",
"symbol": "TSTG",
"kind": "absolute_maximum",
"unit": "°C",
"min": -40,
"typ": null,
"max": 120,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "焊接温度范围 (soldering temperature)",
"symbol": "TSD",
"kind": "absolute_maximum",
"unit": "°C",
"min": null,
"typ": null,
"max": 240,
"conditions": "时间小于30秒 (time less than 30 s)",
"source_page": 3,
"source": "datasheet"
},
{
"name": "静电耐压值 (ESD voltage)",
"symbol": "VESD",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 2000,
"conditions": "人体模型 (human body model)",
"source_page": 3,
"source": "datasheet"
},
{
"name": "工作工作电压 (operating voltage)",
"symbol": "VDD",
"kind": "electrical",
"unit": "V",
"min": 5,
"typ": null,
"max": 40,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "VCS 过流保护阈值 (current-limit threshold)",
"symbol": "VCS_TH",
"kind": "electrical",
"unit": "mV",
"min": 240,
"typ": 250,
"max": 260,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "FB 脚电压 (FB pin voltage)",
"symbol": "VFB",
"kind": "electrical",
"unit": "mV",
"min": 240,
"typ": 250,
"max": 260,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "欠压保护电压 (UVLO voltage)",
"symbol": "VDD_UVLO",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 4.8,
"max": null,
"conditions": "VDD上升 (VDD rising)",
"source_page": 4,
"source": "datasheet"
},
{
"name": "工作电流 (operating current)",
"symbol": "IOP",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 2.5,
"max": null,
"conditions": "FOP =200KHz",
"source_page": 4,
"source": "datasheet"
},
{
"name": "待机输入电流 (standby input current)",
"symbol": "IINQ",
"kind": "electrical",
"unit": "uA",
"min": null,
"typ": 75,
"max": null,
"conditions": "无负载，EN 为低电平 (no load, EN low)",
"source_page": 4,
"source": "datasheet"
},
{
"name": "工作频率 (operating frequency)",
"symbol": "FS",
"kind": "electrical",
"unit": "KHz",
"min": null,
"typ": 120,
"max": null,
"conditions": "ROSC=330K",
"source_page": 4,
"source": "datasheet"
},
{
"name": "EN 端输入高电平 (EN high input level)",
"symbol": "ENH",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 3.2,
"max": null,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "EN 端输入低电平 (EN low input level)",
"symbol": "ENL",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 0.8,
"max": null,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "DRV 上升时间 (DRV rise time)",
"symbol": "TRISE",
"kind": "electrical",
"unit": "ns",
"min": null,
"typ": 50,
"max": null,
"conditions": "DRV 脚接 500pF 电容 (DRV pin with 500pF capacitor)",
"source_page": 4,
"source": "datasheet"
},
{
"name": "DRV 下降时间 (DRV fall time)",
"symbol": "TFALL",
"kind": "electrical",
"unit": "ns",
"min": null,
"typ": 50,
"max": null,
"conditions": "DRV 脚接 500pF 电容 (DRV pin with 500pF capacitor)",
"source_page": 4,
"source": "datasheet"
},
{
"name": "过温保护阈值 (over-temperature protection threshold)",
"symbol": "OTP_TH",
"kind": "electrical",
"unit": "°C",
"min": null,
"typ": 140,
"max": null,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "最大占空比 (maximum duty cycle)",
"symbol": "DMAX",
"kind": "electrical",
"unit": "%",
"min": null,
"typ": 87,
"max": null,
"conditions": "VFB=0V",
"source_page": 4,
"source": "datasheet"
}
]
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"oc6781"
],
"discovery_pitch": "OC6781 (OCX) 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",
"oc6781.kicad_sym",
"oc6781.kicad_mod",
"oc6781.glb",
"oc6781.step",
"oc6781.lbr",
"docs/hero.png",
"docs/oc6781-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"oc6781-hero.glb",
"oc6781-hero.overlay.json",
"oc6781-etched.glb"
],
"visibility": {
"public": true
}
}