component
NCP1095DBR2
Public Made by Adomby adom
onsemi Power Over Ethernet Controllers, TSSOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"title": "NCP1095DBR2",
"brief": "onsemi Power Over Ethernet Controllers, TSSOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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"manufacturer": "onsemi",
"package": "TSSOP-16",
"pin_count": 16,
"category": "Power Supply Chip",
"subcategory": "Power Over Ethernet Controllers",
"datasheet": "https://www.onsemi.com/pdf/datasheet/ncp1095dbr2-d.pdf",
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"model_3d_step_plain": "ncp1095dbr2.step",
"lbr": "ncp1095dbr2.lbr"
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"distributor_links": {
"lcsc": "C904377",
"digikey": "NCP1095DBR2OSTR-ND",
"mouser": "863-NCP1095DBR2"
},
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"checked_at": "2026-10-23T09:01:06Z",
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"pins": [
{
"number": "1",
"name": "VPP",
"type": "power_in",
"description": "Positive input power; connect to the positive terminal of the rectifier bridge (absolute max 72 V with respect to VPN, recommended VPORT 0 to 57 V)."
},
{
"number": "2",
"name": "CLA",
"type": "output",
"description": "Connect a class signature programming resistor to VPN (RclassA, see classification section for recommended values)."
},
{
"number": "3",
"name": "CLB",
"type": "output",
"description": "Connect a class signature programming resistor to VPN (RclassB, see classification section for recommended values)."
},
{
"number": "4",
"name": "AUX",
"type": "input",
"description": "Auxiliary supply detection input referenced to VPN; when pulled high it turns off the pass switch and drives GBR low."
},
{
"number": "5",
"name": "COSC",
"type": "passive",
"description": "Connect a 1 nF capacitor between COSC and VPN; this pin is pulled to VPP during the detection phase."
},
{
"number": "6",
"name": "ACS",
"type": "input",
"description": "Autoclass enable/disable input; pull to VPN to disable Autoclass, leave floating to enable Autoclass."
},
{
"number": "7",
"name": "DET",
"type": "output",
"description": "Connect a 26.1 kΩ detection resistor between DET and COSC; this pin is pulled to VPN during the detection phase."
},
{
"number": "8",
"name": "VPN",
"type": "power_in",
"description": "Negative input power (ground); connect to the negative terminal of the rectifier bridge."
},
{
"number": "9",
"name": "PSNS",
"type": "input",
"description": "Positive current sense line; connect to the positive side of the external sense resistor and the source of the external pass transistor (max 3.6 V with respect to VPN)."
},
{
"number": "10",
"name": "PGATE",
"type": "output",
"description": "Gate driver for the external pass transistor (max 11 V with respect to VPN)."
},
{
"number": "11",
"name": "GBR",
"type": "output",
"description": "Open-drain control output to disable the active rectifier bridge, referenced to VPN."
},
{
"number": "12",
"name": "RTN",
"type": "power_in",
"description": "DC/DC controller power return; connect to the drain of the external pass transistor."
},
{
"number": "13",
"name": "LCF",
"type": "output",
"description": "Open-drain Long Classification Finger indicator referenced to RTN; connect with a pull-up resistor to the logic supply."
},
{
"number": "14",
"name": "PGO",
"type": "output",
"description": "Open-drain Power Good indicator referenced to RTN, floating when power good is active; must be used to enable/disable the adjacent main DC/DC converter."
},
{
"number": "15",
"name": "NCM",
"type": "output",
"description": "Open-drain class result MSB output referenced to RTN; connect with a pull-up resistor to the logic supply."
},
{
"number": "16",
"name": "NCL",
"type": "output",
"description": "Open-drain class result LSB output referenced to RTN; connect with a pull-up resistor to the logic supply."
}
],
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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 types for COSC (marked Analog in datasheet) and RTN (marked Power) were mapped to passive and po"
],
"pages_sent": 17,
"cost_usd": 0.1763,
"at": "2026-10-23T09:00:32"
},
"datasheet": {
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"pages": 17,
"sha256": "fdf51c8edaeacbc1",
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"pins": {
"total": 16,
"described": 16,
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"metadata": {
"specs": {
"Manufacturer": "onsemi",
"Package": "TSSOP-16",
"Category": "Power Supply Chip",
"Pins": "16"
},
"characteristics": {
"version": 1,
"source": "datasheet",
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"rows": [
{
"name": "Equivalent detection resistance",
"symbol": "Rdetect",
"kind": "electrical",
"unit": "kΩ",
"min": 23.7,
"typ": null,
"max": 26.3,
"conditions": "RDET = 26.1 kΩ ±1%; 1 V ≤ VPORT ≤ 10.1 V",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Detection offset voltage (IC part)",
"symbol": "VoffsetIC",
"kind": "electrical",
"unit": "V",
"min": 0,
"typ": null,
"max": 0.2,
"conditions": "",
"source_page": 5,
"source": "datasheet"
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{
"name": "Class/Mark current switchover threshold",
"symbol": "Vcl_th",
"kind": "electrical",
"unit": "V",
"min": 10.1,
"typ": null,
"max": 12.5,
"conditions": "VPORT rising or falling",
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"source": "datasheet"
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{
"name": "Classification current disable threshold",
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"kind": "electrical",
"unit": "V",
"min": 20.5,
"typ": null,
"max": 24.5,
"conditions": "VPORT rising or falling",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Quiescent current during classification",
"symbol": "Iclsigq",
"kind": "electrical",
"unit": "µA",
"min": 207,
"typ": 327,
"max": 484,
"conditions": "VPORT = 12.5 V",
"source_page": 5,
"source": "datasheet"
},
{
"name": "CLASS driver voltage during class event",
"symbol": "Vcsr",
"kind": "electrical",
"unit": "V",
"min": 8.5,
"typ": 9.15,
"max": 9.7,
"conditions": "12.5 V ≤ VPORT ≤ 20.5 V",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Class signature current 0",
"symbol": "Iclsig0",
"kind": "electrical",
"unit": "mA",
"min": 1,
"typ": null,
"max": 4,
"conditions": "RclassA,B = 4.5 kΩ ±1%; 12.5 V ≤ VPORT ≤ 20.5 V",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Class signature current 1",
"symbol": "Iclsig1",
"kind": "electrical",
"unit": "mA",
"min": 9,
"typ": null,
"max": 12,
"conditions": "RclassA,B = 909 Ω ±1%; 12.5 V ≤ VPORT ≤ 20.5 V",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Class signature current 2",
"symbol": "Iclsig2",
"kind": "electrical",
"unit": "mA",
"min": 17,
"typ": null,
"max": 20,
"conditions": "RclassA,B = 511 Ω ±1%; 12.5 V ≤ VPORT ≤ 20.5 V",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Class signature current 3",
"symbol": "Iclsig3",
"kind": "electrical",
"unit": "mA",
"min": 26,
"typ": null,
"max": 30,
"conditions": "RclassA,B = 332 Ω ±1%; 12.5 V ≤ VPORT ≤ 20.5 V",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Class signature current 4",
"symbol": "Iclsig4",
"kind": "electrical",
"unit": "mA",
"min": 36,
"typ": null,
"max": 44,
"conditions": "RclassA,B = 232 Ω ±1%; 12.5 V ≤ VPORT ≤ 20.5 V",
"source_page": 5,
"source": "datasheet"
},
{
"name": "IPP during mark event range",
"symbol": "Imark",
"kind": "electrical",
"unit": "mA",
"min": 1,
"typ": 2.3,
"max": 4,
"conditions": "4.9 V ≤ VPORT ≤ 10.1 V",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Short/Long first class event threshold",
"symbol": "tfce",
"kind": "timing",
"unit": "ms",
"min": 75,
"typ": null,
"max": 88,
"conditions": "RDET = 26.1 kΩ ±1%; COSC = 1 nF ±2%",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Change to class signature '0' current timing",
"symbol": "tacspd",
"kind": "timing",
"unit": "ms",
"min": 75.5,
"typ": null,
"max": 87.5,
"conditions": "Autoclass enabled",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Inrush current",
"symbol": "Iinr",
"kind": "electrical",
"unit": "mA",
"min": 85,
"typ": 110,
"max": 135,
"conditions": "25 mΩ Sense Resistor",
"source_page": 5,
"source": "datasheet"
},
{
"name": "RTN PowerGood threshold voltage",
"symbol": "Vdrain_pg",
"kind": "electrical",
"unit": "V",
"min": 0.7,
"typ": 0.8,
"max": 0.9,
"conditions": "RTN–VPN falling",
"source_page": 5,
"source": "datasheet"
},
{
"name": "PGATE PowerGood threshold voltage",
"symbol": "Vgate_pg",
"kind": "electrical",
"unit": "V",
"min": 6.9,
"typ": 8.5,
"max": 10,
"conditions": "PGATE−VPN rising",
"source_page": 5,
"source": "datasheet"
},
{
"name": "PGO output low voltage",
"symbol": "Vpgo_low",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 0.15,
"max": 0.5,
"conditions": "Isink = 2 mA. Referenced to RTN",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Operating current",
"symbol": "Idd_on",
"kind": "electrical",
"unit": "µA",
"min": 257,
"typ": 407,
"max": 601,
"conditions": "VPORT = 57 V",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Over current detection level",
"symbol": "Ioc",
"kind": "electrical",
"unit": "A",
"min": 5,
"typ": 6.4,
"max": 8,
"conditions": "25 mΩ Sense Resistor",
"source_page": 5,
"source": "datasheet"
},
{
"name": "RTN overcurrent detection voltage",
"symbol": "Voc",
"kind": "electrical",
"unit": "V",
"min": 1.1,
"typ": 1.2,
"max": 1.3,
"conditions": "RTN–VPN rising",
"source_page": 5,
"source": "datasheet"
},
{
"name": "VPP UVLO threshold voltage (rising)",
"symbol": "UVLO_H",
"kind": "electrical",
"unit": "V",
"min": 33,
"typ": 35.1,
"max": 37.5,
"conditions": "VPORT rising",
"source_page": 5,
"source": "datasheet"
},
{
"name": "VPP UVLO threshold voltage (falling)",
"symbol": "UVLO_L",
"kind": "electrical",
"unit": "V",
"min": 30,
"typ": 32.3,
"max": 34.5,
"conditions": "VPORT falling",
"source_page": 5,
"source": "datasheet"
},
{
"name": "UVLO threshold hysteresis",
"symbol": "UVLO_hyst",
"kind": "electrical",
"unit": "V",
"min": 2.4,
"typ": 2.8,
"max": 3.3,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "VPP reset threshold voltage",
"symbol": "Vrst",
"kind": "electrical",
"unit": "V",
"min": 2.81,
"typ": 3.85,
"max": 4.9,
"conditions": "VPORT falling",
"source_page": 5,
"source": "datasheet"
},
{
"name": "AUX input high level voltage",
"symbol": "AUX_H",
"kind": "electrical",
"unit": "V",
"min": 1.7,
"typ": 2.15,
"max": 2.6,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "AUX input low level voltage",
"symbol": "AUX_L",
"kind": "electrical",
"unit": "V",
"min": 0.5,
"typ": 0.75,
"max": 1.05,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "AUX threshold hysteresis",
"symbol": "AUX_hyst",
"kind": "electrical",
"unit": "V",
"min": 1,
"typ": 1.4,
"max": 2,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "AUX internal pull down",
"symbol": "AUX_pd",
"kind": "electrical",
"unit": "kΩ",
"min": 180,
"typ": 265,
"max": 380,
"conditions": "VAUX = 0.5 V",
"source_page": 6,
"source": "datasheet"
},
{
"name": "NCL, NCM or LCF output low voltage",
"symbol": "Vlow",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 0.15,
"max": 0.5,
"conditions": "Isink = 2 mA. Referenced to RTN",
"source_page": 6,
"source": "datasheet"
},
{
"name": "GBR output low voltage",
"symbol": "Vgbr_low",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 0.15,
"max": 0.5,
"conditions": "Isink = 2 mA",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Poweroff current, aux mode",
"symbol": "Idd_off_aux",
"kind": "electrical",
"unit": "µA",
"min": 198,
"typ": 315,
"max": 463,
"conditions": "VPP−RTN = 57 V, AUX−VPN = 3.3 V",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Thermal shutdown threshold",
"symbol": "TSD",
"kind": "electrical",
"unit": "°C",
"min": 150,
"typ": null,
"max": null,
"conditions": "Junction temperature",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Frequency of the oscillator",
"symbol": "fosc",
"kind": "electrical",
"unit": "kHz",
"min": null,
"typ": 26.8,
"max": null,
"conditions": "RDET = 26.1 kΩ; COSC = 1 nF",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Oscillator duty cycle",
"symbol": "duty",
"kind": "electrical",
"unit": "%",
"min": null,
"typ": 50,
"max": null,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Poweroff current, error state",
"symbol": "Idd_off_err",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 230,
"max": null,
"conditions": "VPORT = 57 V, RTN = VPP",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Junction temperature (absolute maximum)",
"symbol": "TJ",
"kind": "absolute_maximum",
"unit": "°C",
"min": -40,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Storage temperature",
"symbol": "TS",
"kind": "absolute_maximum",
"unit": "°C",
"min": -55,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Input Power Supply VPP",
"symbol": "VPP",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 72,
"conditions": "Voltage with respect to VPN",
"source_page": 4,
"source": "datasheet"
},
{
"name": "RTN pass switch drain connection",
"symbol": "RTN",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 72,
"conditions": "Voltage with respect to VPN, Pass switch in the off state",
"source_page": 4,
"source": "datasheet"
},
{
"name": "PSNS / DET voltage",
"symbol": "PSNS",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 3.6,
"conditions": "Voltage with respect to VPN",
"source_page": 4,
"source": "datasheet"
},
{
"name": "PGATE gate drive voltage",
"symbol": "PGATE",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 11,
"conditions": "Voltage with respect to VPN",
"source_page": 4,
"source": "datasheet"
},
{
"name": "PGO, NCM, NCL, LCF output voltage",
"symbol": "PGO",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 72,
"conditions": "Voltage with respect to RTN",
"source_page": 4,
"source": "datasheet"
},
{
"name": "ACS, CLA, CLB, GBR, COSC, AUX voltage",
"symbol": "ACS",
"kind": "absolute_maximum",
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