component
MAX6639FATE+
Public Made by Adomby adom
Maxim Integrated Pre-ordered Chips, TQFN-16(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"version": "0.1.0",
"type": "component",
"description": "Maxim Integrated Pre-ordered Chips, TQFN-16(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"interface ics",
"max6639fate+",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
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"path": "docs/hero.png"
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"component": {
"mpn": "MAX6639FATE+",
"manufacturer": "Maxim Integrated",
"package": "TQFN-16(5x5)",
"pin_count": 17,
"category": "Interface ICs",
"subcategory": "Pre-ordered Chips",
"datasheet": "https://www.analog.com/media/en/technical-documentation/data-sheets/MAX6639-MAX6639F.pdf",
"parts": {
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"lbr": "max6639fate.lbr"
},
"distributor_links": {
"lcsc": "C1519415",
"digikey": "505-MAX6639FATE+-ND",
"mouser": "700-MAX6639FATE"
},
"distributor_check": {
"checked_at": "2026-10-30T22:42:26Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "505-MAX6639FATE+-ND",
"status": "found"
},
"mouser": {
"pn": "700-MAX6639FATE",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "PWM2",
"type": "output",
"description": "Open-drain output to the gate or base of the power transistor driving fan 2, which requires a pullup resistor that may go to up to 13.5V regardless of VCC."
},
{
"number": "2",
"name": "TACH2",
"type": "input",
"description": "Tachometer input from fan 2, which requires a pullup resistor that may go to up to 13.5V regardless of VCC."
},
{
"number": "3",
"name": "FANFAIL",
"type": "output",
"description": "Active-low, open-drain fan-failure output that is open circuit when VCC = 0."
},
{
"number": "4",
"name": "THERM",
"type": "output",
"description": "Active-low, open-drain thermal alarm output, typically used for clock throttling, that is open circuit when VCC = 0."
},
{
"number": "5",
"name": "OT",
"type": "output",
"description": "Active-low, open-drain overtemperature output, typically used for system shutdown or clock throttling, that can be pulled up to 5.5V regardless of VCC and is open circuit when VCC = 0."
},
{
"number": "6",
"name": "VCC",
"type": "power_in",
"description": "Power-supply input, 3.3V nominal within a 3.0V to 3.6V operating range, to be bypassed to GND with a 0.1µF capacitor."
},
{
"number": "7",
"name": "GND",
"type": "power_in",
"description": "Ground; connect to a clean ground reference."
},
{
"number": "8",
"name": "DXP1",
"type": "passive",
"description": "Combined current source and A/D positive input for a remote diode, which must not be left unconnected (connect to DXN if no remote diode is used) and needs a 2200pF capacitor between DXP and DXN for noise filtering."
},
{
"number": "9",
"name": "DXN",
"type": "passive",
"description": "Remote-diode current sink input, to which the cathode of the remote-diode-connected transistor connects."
},
{
"number": "10",
"name": "DXP2",
"type": "passive",
"description": "Combined current source and A/D positive input for a remote diode, which must not be left unconnected (connect to DXN if no remote diode is used) and needs a 2200pF capacitor between DXP and DXN for noise filtering."
},
{
"number": "11",
"name": "ADD",
"type": "input",
"description": "Address input that sets the device slave address; connect to GND, to VCC, or leave unconnected to select one of three unique addresses (see Table 1)."
},
{
"number": "12",
"name": "ALERT",
"type": "output",
"description": "Active-low, open-drain SMBus alert output."
},
{
"number": "13",
"name": "SCL",
"type": "input",
"description": "SMBus serial-clock input that can be pulled up to 5.5V regardless of VCC."
},
{
"number": "14",
"name": "SDA",
"type": "bidirectional",
"description": "SMBus serial-data input/output, open drain, that can be pulled up to 5.5V regardless of VCC and is open circuit when VCC = 0."
},
{
"number": "15",
"name": "PWM1",
"type": "output",
"description": "Open-drain output to the gate or base of the power transistor driving fan 1, which requires a pullup resistor that may go to up to 13.5V regardless of VCC."
},
{
"number": "16",
"name": "TACH1",
"type": "input",
"description": "Tachometer input from fan 1, which requires a pullup resistor that may go to up to 13.5V regardless of VCC."
},
{
"number": "17",
"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: The exposed pad has no numeric pin number in the datasheet. It is listed as EP and typed power_in be; The pin-description table lists the TQFN numbers 8 and 10 together with the names DXP1 and DXP2 in t; The SCL open-circuit condition in the extracted text is truncated (it ends at 'when VCC ='), so the ",
"exposed pad 17 added from the footprint",
"dropped thermal pad ['EP'] absent from footprint"
],
"pages_sent": 7,
"cost_usd": 0.0602,
"at": "2026-10-30T22:42:06"
},
"datasheet": {
"url": "https://www.analog.com/media/en/technical-documentation/data-sheets/MAX6639-MAX6639F.pdf",
"pages": 22,
"sha256": "bf52604981deae9c",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 17,
"described": 17,
"cites_pages": true,
"refuses_to_fabricate": true
}
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}