component
IS31FL3199-QFLS2-TR
Public Made by Adomby adom
ISSI Integrated Silicon Solution LED Drivers, UQFN-20-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
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"description": "ISSI Integrated Silicon Solution LED Drivers, UQFN-20-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
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"led drivers",
"is31fl3199-qfls2-tr",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
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"is31fl3199-qfls2-tr.step",
"is31fl3199-qfls2-tr.lbr",
"docs/hero.png",
"docs/is31fl3199-qfls2-tr-datasheet.pdf",
"viewers/symbol.html",
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"is31fl3199-qfls2-tr-hero.overlay.json",
"is31fl3199-qfls2-tr-etched.glb"
],
"component": {
"mpn": "IS31FL3199-QFLS2-TR",
"manufacturer": "ISSI Integrated Silicon Solution",
"package": "UQFN-20-EP(3x3)",
"pin_count": 21,
"category": "LED Drivers",
"subcategory": "LED Drivers",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588881680128495616",
"parts": {
"symbol": "is31fl3199-qfls2-tr.kicad_sym",
"footprint": "is31fl3199-qfls2-tr.kicad_mod",
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"lbr": "is31fl3199-qfls2-tr.lbr"
},
"distributor_links": {
"lcsc": "C150408",
"digikey": "2521-IS31FL3199-QFLS2-TR-ND",
"mouser": "870-31FL3199QFLS2TR"
},
"distributor_check": {
"checked_at": "2026-10-19T05:51:51Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "2521-IS31FL3199-QFLS2-TR-ND",
"status": "found",
"lifecycle": "Active"
},
"mouser": {
"pn": "870-31FL3199QFLS2TR",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "VCC",
"type": "power_in",
"description": "Power supply, 2.7V to 5.5V."
},
{
"number": "2",
"name": "C_FILT",
"type": "passive",
"description": "Filter capacitor for audio control."
},
{
"number": "3",
"name": "OUT1",
"type": "output",
"description": "Current source output for channel 1, with output current set by the CS bits up to 40mA."
},
{
"number": "4",
"name": "OUT2",
"type": "output",
"description": "Current source output for channel 2, with output current set by the CS bits up to 40mA."
},
{
"number": "5",
"name": "OUT3",
"type": "output",
"description": "Current source output for channel 3, with output current set by the CS bits up to 40mA."
},
{
"number": "6",
"name": "OUT4",
"type": "output",
"description": "Current source output for channel 4, with output current set by the CS bits up to 40mA."
},
{
"number": "7",
"name": "GND",
"type": "power_in",
"description": "Ground."
},
{
"number": "8",
"name": "OUT5",
"type": "output",
"description": "Current source output for channel 5, with output current set by the CS bits up to 40mA."
},
{
"number": "9",
"name": "OUT6",
"type": "output",
"description": "Current source output for channel 6, with output current set by the CS bits up to 40mA."
},
{
"number": "10",
"name": "OUT7",
"type": "output",
"description": "Current source output for channel 7, with output current set by the CS bits up to 40mA."
},
{
"number": "11",
"name": "OUT8",
"type": "output",
"description": "Current source output for channel 8, with output current set by the CS bits up to 40mA."
},
{
"number": "12",
"name": "OUT9",
"type": "output",
"description": "Current source output for channel 9, with output current set by the CS bits up to 40mA."
},
{
"number": "13",
"name": "SDB",
"type": "input",
"description": "Shuts down the chip when pulled low (hardware shutdown, about 1µA typical)."
},
{
"number": "14",
"name": "I_AUD",
"type": "bidirectional",
"description": "Audio current input or output used for chip cascade synchronization of the audio current."
},
{
"number": "15",
"name": "R_EXT",
"type": "passive",
"description": "Input terminal for an external resistor, which must be about 100kΩ."
},
{
"number": "16",
"name": "AD",
"type": "input",
"description": "I2C address setting: connect to GND (00), VCC (11), SCL (01) or SDA (10)."
},
{
"number": "17",
"name": "IN",
"type": "input",
"description": "Audio input."
},
{
"number": "18",
"name": "SCL",
"type": "input",
"description": "I2C serial clock."
},
{
"number": "19",
"name": "SDA",
"type": "bidirectional",
"description": "I2C serial data, bidirectional open-collector with an external pull-up resistor (typically 4.7kΩ)."
},
{
"number": "20",
"name": "CLK/V_BM",
"type": "bidirectional",
"description": "CLK input or output for cascade synchronization of breathing; when the breathing mark function is enabled this pin is the V_BM output."
},
{
"number": "21",
"name": "EP",
"type": "passive",
"description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
}
],
"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: Package naming mismatch: the hint says UQFN-20-EP(3x3), but the datasheet names the package QFN-20 (; Thermal pad (exposed pad) is specified only as 'Connect to GND' and is not given a pin number in the; The pin configuration drawing text is partly garbled in the extracted text and does not give a full ",
"exposed pad 21 added from the footprint",
"3/21 pins cited to the wrong page (name found elsewhere): ['4:OUT2@p3', '5:OUT3@p3', '11:OUT8@p3']"
],
"pages_sent": 15,
"cost_usd": 0.0708,
"at": "2026-10-19T05:49:31"
},
"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588881680128495616",
"pages": 15,
"sha256": "8fad1229fea67950",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 21,
"described": 21,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
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"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
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"centre_offset_mm": 0.0,
"footprint_binding": "identity",
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"checked": "2026-10-19",
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}