component
XPD977B18
Public Made by Adomby adom
Shenzhen Fuman Battery Management ICs, QFN-32-EP(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"type": "component",
"slug": "xpd977b18",
"title": "XPD977B18",
"brief": "Shenzhen Fuman Battery Management ICs, QFN-32-EP(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
"license": "CC-BY-SA-4.0",
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"xpd977b18",
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"component": {
"mpn": "XPD977B18",
"manufacturer": "Shenzhen Fuman",
"package": "QFN-32-EP(5x5)",
"pin_count": 33,
"category": "Power Management ICs",
"subcategory": "Battery Management ICs",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/5105cc8c9054fdf0ede57d544cf7b504.pdf",
"parts": {
"symbol": "xpd977b18.kicad_sym",
"footprint": "xpd977b18.kicad_mod",
"model_3d": "xpd977b18-hero.glb",
"model_3d_plain": "xpd977b18-etched.glb",
"model_3d_step": "xpd977b18-etched.step",
"model_3d_step_plain": "xpd977b18.step",
"lbr": "xpd977b18.lbr"
},
"distributor_links": {
"lcsc": "C2844297"
},
"distributor_check": {
"checked_at": "2026-10-30T11:54:02Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "no match"
},
"mouser": {
"pn": null,
"status": "no match"
}
},
"pins": [
{
"number": "1",
"name": "VFB",
"type": "input",
"description": "Voltage regulation port connected to the system voltage feedback point (internal reference 1.24V, RFB1 must be 100kΩ)."
},
{
"number": "2",
"name": "IREF",
"type": "passive",
"description": "CC loop compensation pin; leave floating if the CC function is not used."
},
{
"number": "3",
"name": "CSN",
"type": "input",
"description": "Current sense negative terminal; connect to GND if unused, must not be left floating."
},
{
"number": "4",
"name": "CSP",
"type": "input",
"description": "Current sense positive terminal; connect to GND if unused, must not be left floating."
},
{
"number": "5",
"name": "ISP2",
"type": "input",
"description": "Current sense positive terminal for the Type-A2 port."
},
{
"number": "6",
"name": "ISP3",
"type": "input",
"description": "Current sense positive terminal for the Type-A3 port."
},
{
"number": "7",
"name": "DP3",
"type": "bidirectional",
"description": "Type-A3 port data line DP."
},
{
"number": "8",
"name": "LINK",
"type": "bidirectional",
"description": "XPD-LINK interconnect port (bus with 10kΩ resistor to ground)."
},
{
"number": "9",
"name": "DM3",
"type": "bidirectional",
"description": "Type-A3 port data line DM."
},
{
"number": "10",
"name": "DIS",
"type": "output",
"description": "Gate control for the external discharge NMOS."
},
{
"number": "11",
"name": "AISN",
"type": "input",
"description": "Interconnect current sense negative terminal for use with non-XPD series products; connect to GND when unused."
},
{
"number": "12",
"name": "AISP",
"type": "input",
"description": "Interconnect current sense positive terminal for use with non-XPD series products; connect to GND when unused."
},
{
"number": "13",
"name": "USBA3",
"type": "passive",
"description": "Type-A3 port VBUS output power."
},
{
"number": "14",
"name": "GD3",
"type": "output",
"description": "Type-A3 port PMOS switch gate drive."
},
{
"number": "15",
"name": "DP2",
"type": "bidirectional",
"description": "Type-A2 port data line DP."
},
{
"number": "16",
"name": "DM2",
"type": "bidirectional",
"description": "Type-A2 port data line DM."
},
{
"number": "17",
"name": "USBA2",
"type": "passive",
"description": "Type-A2 port VBUS output power."
},
{
"number": "18",
"name": "GD2",
"type": "output",
"description": "Type-A2 port PMOS switch gate drive."
},
{
"number": "19",
"name": "CC1",
"type": "bidirectional",
"description": "Type-C port configuration channel CC1 (rated up to 26V abs max)."
},
{
"number": "20",
"name": "DP1",
"type": "bidirectional",
"description": "Type-C port data line (table text labels it DM; named DP1)."
},
{
"number": "21",
"name": "DM1",
"type": "bidirectional",
"description": "Data line DM1 of the Type-C port (table text labels it Type-A port DP)."
},
{
"number": "22",
"name": "CC2",
"type": "bidirectional",
"description": "Type-C port configuration channel CC2 (rated up to 26V abs max)."
},
{
"number": "23",
"name": "VBUS",
"type": "power_out",
"description": "Type-C port VBUS output power through integrated 10mΩ switch (pins 23/24/25 common); VBUS capacitor max 10µF."
},
{
"number": "24",
"name": "VBUS",
"type": "power_out",
"description": "Type-C port VBUS output power through integrated 10mΩ switch (pins 23/24/25 common); VBUS capacitor max 10µF."
},
{
"number": "25",
"name": "VBUS",
"type": "power_out",
"description": "Type-C port VBUS output power through integrated 10mΩ switch (pins 23/24/25 common); VBUS capacitor max 10µF."
},
{
"number": "26",
"name": "NC",
"type": "unconnected",
"description": "No connect, left floating."
},
{
"number": "27",
"name": "NC",
"type": "unconnected",
"description": "No connect, left floating."
},
{
"number": "28",
"name": "VPWR",
"type": "power_in",
"description": "Input power supply for the chip, 3.3V to 21V recommended range (pins 28/29/30 common)."
},
{
"number": "29",
"name": "VPWR",
"type": "power_in",
"description": "Input power supply for the chip, 3.3V to 21V recommended range (pins 28/29/30 common)."
},
{
"number": "30",
"name": "VPWR",
"type": "power_in",
"description": "Input power supply for the chip, 3.3V to 21V recommended range (pins 28/29/30 common)."
},
{
"number": "31",
"name": "NC",
"type": "unconnected",
"description": "No connect, left floating."
},
{
"number": "32",
"name": "OPTO",
"type": "output",
"description": "Optocoupler drive output, withstands 20V or more."
},
{
"number": "33",
"name": "EP",
"type": "passive",
"description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
}
],
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"primary_model": "claude-sonnet-5-5",
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"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: Pin table descriptions for pins 20 and 21 are inconsistent with their names (DP1 described as 'Type-; Electrical direction types are inferred from descriptions; the datasheet gives no explicit pin direc; Exposed pad is labeled 'EPAD' in the datasheet with no numeric pin number; the name GND is inferred "
],
"pages_sent": 19,
"cost_usd": 0.187,
"at": "2026-10-30T11:53:45"
},
"datasheet": {
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"pages": 19,
"sha256": "5a87c34d62e6ac88",
"source_tier": "lcsc"
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"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
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"described": 33,
"cites_pages": true,
"refuses_to_fabricate": true
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{
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"metadata": {
"specs": {
"Manufacturer": "Shenzhen Fuman",
"Package": "QFN-32-EP(5x5)",
"Category": "Power Management ICs",
"Pins": "33"
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"characteristics": {
"version": 1,
"source": "datasheet",
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"rows": [
{
"name": "Absolute max voltage VPWR, VBUS, VBUSA, CC1, CC2, DP1, DM1, DP2, DM2, OPTO",
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"min": -0.3,
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{
"name": "Absolute max voltage other pins",
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{
"name": "Junction temperature",
"symbol": "",
"kind": "absolute_maximum",
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"min": -40,
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{
"name": "Storage temperature",
"symbol": "",
"kind": "absolute_maximum",
"unit": "℃",
"min": -65,
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{
"name": "ESD HBM",
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"kind": "absolute_maximum",
"unit": "V",
"min": -4000,
"typ": null,
"max": 4000,
"conditions": "HBM",
"source_page": 8,
"source": "datasheet"
},
{
"name": "VPWR input voltage",
"symbol": "VPWR",
"kind": "recommended_operating",
"unit": "V",
"min": 3.3,
"typ": null,
"max": 21,
"conditions": "",
"source_page": 8,
"source": "datasheet"
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{
"name": "VBUS capacitance",
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"kind": "recommended_operating",
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"min": 1,
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{
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"symbol": "CVPWR",
"kind": "recommended_operating",
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"min": 1,
"typ": null,
"max": 10,
"conditions": "",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Operating ambient temperature",
"symbol": "TA",
"kind": "recommended_operating",
"unit": "℃",
"min": -40,
"typ": null,
"max": 85,
"conditions": "",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Junction-to-ambient thermal resistance",
"symbol": "RθJA",
"kind": "thermal",
"unit": "C/W",
"min": null,
"typ": 34,
"max": null,
"conditions": "QFN32",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Junction-to-case(top) thermal resistance",
"symbol": "RθJCtop",
"kind": "thermal",
"unit": "C/W",
"min": null,
"typ": 32,
"max": null,
"conditions": "QFN32",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Junction-to-board thermal resistance",
"symbol": "RθJB",
"kind": "thermal",
"unit": "C/W",
"min": null,
"typ": 10,
"max": null,
"conditions": "QFN32",
"source_page": 8,
"source": "datasheet"
},
{
"name": "VPWR UVLO rising",
"symbol": "VVPWR_TH",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 3.3,
"conditions": "Rising edge",
"source_page": 9,
"source": "datasheet"
},
{
"name": "VPWR UVLO falling",
"symbol": "VVPWR_TH",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 2.9,
"max": null,
"conditions": "Falling edge",
"source_page": 9,
"source": "datasheet"
},
{
"name": "VPWR UVLO hysteresis",
"symbol": "VVPWR_TH",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 0.4,
"max": null,
"conditions": "Hysteresis",
"source_page": 9,
"source": "datasheet"
},
{
"name": "Operating current",
"symbol": "ISUPP",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 2,
"max": null,
"conditions": "VPWR=5V, VBUS=5V",
"source_page": 9,
"source": "datasheet"
},
{
"name": "Transmit output resistance",
"symbol": "RTX",
"kind": "electrical",
"unit": "Ω",
"min": null,
"typ": 50,
"max": null,
"conditions": "During transmission",
"source_page": 9,
"source": "datasheet"
},
{
"name": "Transmit LOW",
"symbol": "VTXLO",
"kind": "electrical",
"unit": "mV",
"min": -75,
"typ": null,
"max": 75,
"conditions": "",
"source_page": 9,
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{
"name": "BMC rise/fall time",
"symbol": "tBMC",
"kind": "timing",
"unit": "ns",
"min": 300,
"typ": null,
"max": 600,
"conditions": "Rload=5.1k,Cload=1nF",
"source_page": 9,
"source": "datasheet"
},
{
"name": "Receive HIGH",
"symbol": "VRXHI",
"kind": "electrical",
"unit": "mV",
"min": 800,
"typ": 840,
"max": 885,
"conditions": "",
"source_page": 9,
"source": "datasheet"
},
{
"name": "Receive LOW",
"symbol": "VRXLO",
"kind": "electrical",
"unit": "mV",
"min": 485,
"typ": 525,
"max": 570,
"conditions": "",
"source_page": 9,
"source": "datasheet"
},
{
"name": "CC broadcasting current 3A",
"symbol": "IRP_SRC",
"kind": "electrical",
"unit": "uA",
"min": 304,
"typ": 330,
"max": 356,
"conditions": "3A DFP mode, 0 ≤ VCCX ≤ 2.5V",
"source_page": 9,
"source": "datasheet"
},
{
"name": "CC broadcasting current 1.5A",
"symbol": "IRP_SRC",
"kind": "electrical",
"unit": "uA",
"min": 166,
"typ": 180,
"max": 194,
"conditions": "1.5A DFP mode, 0 ≤ VCCX ≤ 1.5V",
"source_page": 9,
"source": "datasheet"
},
{
"name": "Over-temperature threshold",
"symbol": "TJ1",
"kind": "electrical",
"unit": "℃",
"min": 135,
"typ": 145,
"max": 155,
"conditions": "Temperature rising edge",
"source_page": 9,
"source": "datasheet"
},
{
"name": "Data line detect voltage",
"symbol": "VDAT(REF)",
"kind": "electrical",
"unit": "V",
"min": 0.25,
"typ": 0.325,
"max": 0.4,
"conditions": "",
"source_page": 9,
"source": "datasheet"
},
{
"name": "Output voltage select",
"symbol": "VSEL(REF)",
"kind": "electrical",
"unit": "V",
"min": 1.8,
"typ": 2,
"max": 2.2,
"conditions": "",
"source_page": 9,
"source": "datasheet"
},
{
"name": "D+ high glitch filter time",
"symbol": "TGLITCH(DP)HIGH",
"kind": "timing",
"unit": "s",
"min": 1,
"typ": 1.25,
"max": 1.5,
"conditions": "",
"source_page": 9,
"source": "datasheet"
},
{
"name": "Output voltage glitch filter time",
"symbol": "TGLITCH(V)CHANGE",
"kind": "timing",
"unit": "ms",
"min": 20,
"typ": 40,
"max": 60,
"conditions": "",
"source_page": 10,
"source": "datasheet"
},
{
"name": "Continuous mode glitch filter time",
"symbol": "TGLITCH(CONT)CHANGE",
"kind": "timing",
"unit": "us",
"min": 100,
"typ": 150,
"max": 200,
"conditions": "",
"source_page": 10,
"source": "datasheet"
},
{
"name": "D+ leakage resistance",
"symbol": "RDAT(LKG)",
"kind": "electrical",
"unit": "KΩ",
"min": 300,
"typ": 500,
"max": 800,
"conditions": "",
"source_page": 10,
"source": "datasheet"
},
{
"name": "D- pull-down resistance",
"symbol": "RDM(DWN)",
"kind": "electrical",
"unit": "KΩ",
"min": 14.25,
"typ": 19.53,
"max": 24.5,
"conditions": "",
"source_page": 10,
"source": "datasheet"
},
{
"name": "Switch N1 on-resistance",
"symbol": "RON(N1)",
"kind": "electrical",
"unit": "Ω",
"min": null,
"typ": null,
"max": 100,
"conditions": "",
"source_page": 10,
"source": "datasheet"
},
{
"name": "PD attach detect voltage threshold",
"symbol": "VTH(PD)",
"kind": "electrical",
"unit": "V",
"min": 0.25,
"typ": 0.325,
"max": 0.4,
"conditions": "",
"source_page": 10,
"source": "datasheet"
},
{
"name": "PD attach detect filter time",
"symbol": "TDPD",
"kind": "timing",
"unit": "ms",
"min": 120,
"typ": 160,
"max": 200,
"conditions": "",
"source_page": 10,
"source": "datasheet"
},
{
"name": "Apple 2.4A data line voltage",
"symbol": "VDAT(2.7V)",
"kind": "electrical",
"unit": "V",
"min": 2.57,
"typ": 2.7,
"max": 2.84,
"conditions": "",
"source_page": 10,
"source": "datasheet"
},
{
"name": "Switch MOSFET on-resistance",
"symbol": "RDSON",
"kind": "electrical",
"unit": "mΩ",
"min": null,
"typ": 10,
"max": null,
"conditions": "",
"source_page": 9,
"source": "datasheet"
},
{
"name": "Type-A overcurrent trip",
"symbol": "VITRIP",
"kind": "electrical",
"unit": "A",
"min": null,
"typ": 3.6,
"max": null,
"conditions": "USB-A",
"source_page": 9,
"source": "datasheet"
},
{
"name": "Constant current point",
"symbol": "ICC",
"kind": "electrical",
"unit": "A",
"min": null,
"typ": 3.3,
"max": null,
"conditions": "",
"source_page": 9,
"source": "datasheet"
},
{
"name": "Recommended RS1",
"symbol": "RS1",
"kind": "recommended_operating",
"unit": "mΩ",
"min": null,
"typ": 10,
"max": null,
"conditions": "",
"source_page": 8,
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}
]
}
},
"variants": [],
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],
"discovery_triggers": [
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],
"discovery_pitch": "XPD977B18 (Shenzhen Fuman) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
"author": {
"name": "Ray",
"email": "[email protected]"
},
"dependencies": {},
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},
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],
"visibility": {
"public": true
}
}