component
BD81A44EFV-ME2
Public Made by Adomby adom
ROHM Semicon LED Drivers, HTSSOP-28-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"description": "ROHM Semicon LED Drivers, HTSSOP-28-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
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"display modules - led drivers - display drivers",
"bd81a44efv-me2",
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"component": {
"mpn": "BD81A44EFV-ME2",
"manufacturer": "ROHM Semicon",
"package": "HTSSOP-28-EP",
"pin_count": 29,
"category": "Display Modules / LED Drivers / Display Drivers",
"subcategory": "LED Drivers",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/c4079242f1bef224fca2d092f55c8703.pdf",
"parts": {
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"lbr": "bd81a44efv-me2.lbr"
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"distributor_links": {
"lcsc": "C2678913",
"digikey": "BD81A44EFV-ME2TR-ND",
"mouser": "755-BD81A44EFV-ME2"
},
"distributor_check": {
"checked_at": "2026-10-27T01:37:22Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "BD81A44EFV-ME2TR-ND",
"status": "found",
"lifecycle": "Active"
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"status": "found"
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},
"pins": [
{
"number": "1",
"name": "VCC",
"type": "power_in",
"description": "Input power supply pin."
},
{
"number": "2",
"name": "SS",
"type": "passive",
"description": "Soft start capacitor connection."
},
{
"number": "3",
"name": "COMP",
"type": "output",
"description": "Error amplifier output."
},
{
"number": "4",
"name": "RT",
"type": "passive",
"description": "Oscillation frequency setting resistor connection."
},
{
"number": "5",
"name": "SYNC",
"type": "input",
"description": "External synchronization input pin."
},
{
"number": "6",
"name": "SHDETEN",
"type": "input",
"description": "Short detection enable signal input."
},
{
"number": "7",
"name": "GND",
"type": "power_in",
"description": "Small signal GND pin."
},
{
"number": "8",
"name": "PWM",
"type": "input",
"description": "PWM light modulation signal input pin."
},
{
"number": "9",
"name": "FAIL1",
"type": "output",
"description": "Failure signal output pin 1."
},
{
"number": "10",
"name": "FAIL2",
"type": "output",
"description": "Failure signal output pin 2."
},
{
"number": "11",
"name": "LEDEN1",
"type": "input",
"description": "Enable pin 1 for LED output."
},
{
"number": "12",
"name": "LEDEN2",
"type": "input",
"description": "Enable pin 2 for LED output."
},
{
"number": "13",
"name": "LED1",
"type": "output",
"description": "LED output pin 1."
},
{
"number": "14",
"name": "LED2",
"type": "output",
"description": "LED output pin 2."
},
{
"number": "15",
"name": "LED3",
"type": "output",
"description": "LED output pin 3."
},
{
"number": "16",
"name": "LED4",
"type": "output",
"description": "LED output pin 4."
},
{
"number": "17",
"name": "OVP",
"type": "input",
"description": "Over voltage detection pin."
},
{
"number": "18",
"name": "ISET",
"type": "passive",
"description": "LED output current setting pin."
},
{
"number": "19",
"name": "PGND",
"type": "power_in",
"description": "LED output GND pin."
},
{
"number": "20",
"name": "OUTL",
"type": "output",
"description": "Low side FET gate pin."
},
{
"number": "21",
"name": "DGND",
"type": "power_in",
"description": "DC/DC converter output GND pin."
},
{
"number": "22",
"name": "VDISC",
"type": "passive",
"description": "Output voltage discharge pin."
},
{
"number": "23",
"name": "SW",
"type": "passive",
"description": "High side FET source pin."
},
{
"number": "24",
"name": "OUTH",
"type": "output",
"description": "High side FET gate pin."
},
{
"number": "25",
"name": "BOOT",
"type": "power_in",
"description": "High side FET driver power supply pin."
},
{
"number": "26",
"name": "VREG",
"type": "power_out",
"description": "Internal constant voltage output."
},
{
"number": "27",
"name": "EN",
"type": "input",
"description": "Enable pin."
},
{
"number": "28",
"name": "CS",
"type": "input",
"description": "DC/DC converter current sense pin."
},
{
"number": "29",
"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-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 electrical types (e.g. LED1-4, COMP, VDISC, SW, BOOT, SS, RT, ISET) are inferred from the functi; The exposed pad has no pin number in the datasheet ('-'). 'EP' is used as its identifier."
],
"pages_sent": 7,
"cost_usd": 0.078,
"at": "2026-10-27T01:36:49"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/c4079242f1bef224fca2d092f55c8703.pdf",
"pages": 47,
"sha256": "af0ccb61ebed8547",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
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"described": 29,
"cites_pages": true,
"refuses_to_fabricate": true
}
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}