component
ATA5279C-WGQW
Public Made by Adomby adom
Microchip Tech RF Chips, VQFN-48-EP(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"title": "ATA5279C-WGQW",
"brief": "Microchip Tech RF Chips, VQFN-48-EP(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
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"manufacturer": "Microchip Tech",
"package": "VQFN-48-EP(7x7)",
"pin_count": 49,
"category": "RF & Radio",
"subcategory": "RF Chips",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/18bc43e3873c8337fa8505c879e1c99a.pdf",
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"lcsc": "C2654833",
"mouser": "556-ATA5279C-WGQW"
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{
"number": "1",
"name": "VS",
"type": "power_in",
"description": "Battery supply pin, specified for normal operation from 7 V to 16.5 V and jump start up to 26.5 V."
},
{
"number": "2",
"name": "RGND",
"type": "power_in",
"description": "Reference ground pin for the internal reference and integrator circuitry."
},
{
"number": "3",
"name": "CINT",
"type": "passive",
"description": "Integration capacitor connection for the integrator stage."
},
{
"number": "4",
"name": "VCC",
"type": "power_out",
"description": "Analog 5V stabilization capacitor connection, with internal VCC specified at 4.8 V to 5.3 V in idle mode."
},
{
"number": "5",
"name": "VSHS",
"type": "input",
"description": "Shunt resistor voltage sense input to the zero cross detector and integrator."
},
{
"number": "6",
"name": "VIF",
"type": "power_in",
"description": "Digital supply voltage input for the SPI and control interface, with absolute maximum rating of 5.5 V."
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{
"number": "7",
"name": "OSCI",
"type": "input",
"description": "Oscillator input pin for the external clock, with frequency range 6.4 MHz to 9.6 MHz."
},
{
"number": "8",
"name": "OSCO",
"type": "output",
"description": "Oscillator output pin driving the clock network."
},
{
"number": "9",
"name": "MACT",
"type": "output",
"description": "Modulator active indicator output pin."
},
{
"number": "10",
"name": "BCNT",
"type": "output",
"description": "LF-bit counter output pin."
},
{
"number": "11",
"name": "VSHF1",
"type": "passive",
"description": "Shunt resistor driving pin 1 for the return line shunt."
},
{
"number": "12",
"name": "A6N1",
"type": "passive",
"description": "Coil 6 negative connection line pin 1."
},
{
"number": "13",
"name": "A6N2",
"type": "passive",
"description": "Coil 6 negative connection line pin 2."
},
{
"number": "14",
"name": "A3N1",
"type": "passive",
"description": "Coil 3 negative connection line pin 1."
},
{
"number": "15",
"name": "A3N2",
"type": "passive",
"description": "Coil 3 negative connection line pin 2."
},
{
"number": "16",
"name": "A5N1",
"type": "passive",
"description": "Coil 5 negative connection line pin 1."
},
{
"number": "17",
"name": "A5N2",
"type": "passive",
"description": "Coil 5 negative connection line pin 2."
},
{
"number": "18",
"name": "VSHF2",
"type": "passive",
"description": "Shunt resistor driving pin 2 for the return line shunt."
},
{
"number": "19",
"name": "A2N1",
"type": "passive",
"description": "Coil 2 negative connection line pin 1."
},
{
"number": "20",
"name": "A2N2",
"type": "passive",
"description": "Coil 2 negative connection line pin 2."
},
{
"number": "21",
"name": "VDS1",
"type": "power_in",
"description": "Driver supply pin 1 for the coil driver stages, with VDS operation threshold of 5.1 V to 6 V."
},
{
"number": "22",
"name": "A4N1",
"type": "passive",
"description": "Coil 4 negative connection line pin 1."
},
{
"number": "23",
"name": "A4N2",
"type": "passive",
"description": "Coil 4 negative connection line pin 2."
},
{
"number": "24",
"name": "A1N1",
"type": "passive",
"description": "Coil 1 negative connection line pin 1."
},
{
"number": "25",
"name": "A1N2",
"type": "passive",
"description": "Coil 1 negative connection line pin 2."
},
{
"number": "26",
"name": "A1P",
"type": "passive",
"description": "Coil 1 positive connection line pin."
},
{
"number": "27",
"name": "VDS2",
"type": "power_in",
"description": "Driver supply pin 2 for the coil driver stages."
},
{
"number": "28",
"name": "AGND1",
"type": "power_in",
"description": "Driver ground pin 1."
},
{
"number": "29",
"name": "A4P",
"type": "passive",
"description": "Coil 4 positive connection line pin."
},
{
"number": "30",
"name": "A2P",
"type": "passive",
"description": "Coil 2 positive connection line pin."
},
{
"number": "31",
"name": "AGND2",
"type": "power_in",
"description": "Driver ground pin 2."
},
{
"number": "32",
"name": "A5P",
"type": "passive",
"description": "Coil 5 positive connection line pin."
},
{
"number": "33",
"name": "A3P",
"type": "passive",
"description": "Coil 3 positive connection line pin."
},
{
"number": "34",
"name": "A6P",
"type": "passive",
"description": "Coil 6 positive connection line pin."
},
{
"number": "35",
"name": "AGND3",
"type": "power_in",
"description": "Driver ground pin 3."
},
{
"number": "36",
"name": "MISO",
"type": "tri_state",
"description": "Master-In-Slave-Out SPI output pin, which is tri-state when the chip select is inactive."
},
{
"number": "37",
"name": "MOSI",
"type": "input",
"description": "Master-Out-Slave-In SPI input pin."
},
{
"number": "38",
"name": "S_CS",
"type": "input",
"description": "SPI chip select pin; a logic high wakes the chip from power-down mode."
},
{
"number": "39",
"name": "S_CLK",
"type": "input",
"description": "SPI clock input pin."
},
{
"number": "40",
"name": "NRES",
"type": "input",
"description": "Chip reset input pin; a negative pulse of at least 100 ns enters power-down mode."
},
{
"number": "41",
"name": "IRQ",
"type": "output",
"description": "Interrupt request output pin."
},
{
"number": "42",
"name": "VDS3",
"type": "power_in",
"description": "Driver supply pin 3 for the coil driver stages."
},
{
"number": "43",
"name": "PGND1",
"type": "power_in",
"description": "Boost converter low-side switch output 1, connected to ground."
},
{
"number": "44",
"name": "VL1",
"type": "input",
"description": "Boost converter low-side switch input 1."
},
{
"number": "45",
"name": "PGND2",
"type": "power_in",
"description": "Boost converter low-side switch output 2, connected to ground."
},
{
"number": "46",
"name": "VL2",
"type": "input",
"description": "Boost converter low-side switch input 2."
},
{
"number": "47",
"name": "PGND3",
"type": "power_in",
"description": "Boost converter low-side switch output 3, connected to ground."
},
{
"number": "48",
"name": "VL3",
"type": "input",
"description": "Boost converter low-side switch input 3, with switch overcurrent shutdown level of 2.9 A to 4 A."
},
{
"number": "49",
"name": "EP",
"type": "passive",
"description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
}
],
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"cost_usd": 0.0392,
"at": "2026-11-02T17:31:39"
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"sha256": "accba594bf46d502",
"source_tier": "mfr"
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"metadata": {
"specs": {
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"Package": "VQFN-48-EP(7x7)",
"Category": "RF & Radio",
"Pins": "49"
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{
"name": "Voltage range on pin VS",
"symbol": "VVS",
"kind": "absolute_maximum",
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{
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{
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{
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{
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{
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{
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{
"name": "Voltage range on pin CINT",
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"conditions": "max printed as VVCC + 0.3",
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{
"name": "ESD voltage rating HBM",
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"name": "Count of peaks over lifetime / peak junction temperature",
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"max": 500000,
"conditions": "at 200 °C",
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{
"name": "Thermal resistance junction to case",
"symbol": "RthJC",
"kind": "thermal",
"unit": "K/W",
"min": null,
"typ": 10,
"max": null,
"conditions": "",
"source_page": 28,
"source": "datasheet"
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{
"name": "Thermal resistance junction to ambient",
"symbol": "RthJA",
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"unit": "K/W",
"min": null,
"typ": 35,
"max": null,
"conditions": "value achievable with sufficient thermal vias and heat dissipation area",
"source_page": 28,
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{
"name": "Junction operating temperature range",
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"min": -40,
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{
"name": "Storage temperature range",
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{
"name": "VS-pin power-down mode supply current",
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"min": null,
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"conditions": "VVS ≤ 14V",
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{
"name": "VS-pin idle mode supply current",
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"min": null,
"typ": 3.5,
"max": 5,
"conditions": "VVS = 16.5V",
"source_page": 29,
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{
"name": "Internal VCC voltage",
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"max": 5.3,
"conditions": "7V ≤ VS ≤ 28V; idle IVCC = 0; load IVCC = 5mA",
"source_page": 29,
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{
"name": "VS voltage clamp at VS = 28V",
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{
"name": "VS voltage clamp at VS = 40V",
"symbol": "IVS,C40",
"kind": "electrical",
"unit": "mA",
"min": 1.5,
"typ": 3,
"max": 4.5,
"conditions": "VS = 40V",
"source_page": 29,
"source": "datasheet"
},
{
"name": "VCC power-on reset threshold",
"symbol": "VPORVCC",
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"unit": "V",
"min": 4.1,
"typ": null,
"max": 4.8,
"conditions": "",
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},
{
"name": "VDS operation threshold",
"symbol": "VVDS,min",
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"min": 5.1,
"typ": 5.15,
"max": 6,
"conditions": "VS = 16.5V",
"source_page": 29,
"source": "datasheet"
},
{
"name": "Battery supply range for normal operation",
"symbol": "VVS",
"kind": "recommended_operating",
"unit": "V",
"min": 7,
"typ": null,
"max": 16.5,
"conditions": "Idle mode",
"source_page": 29,
"source": "datasheet"
},
{
"name": "VDS power-down mode supply current",
"symbol": "IVDS,0",
"kind": "electrical",
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"min": 0,
"typ": 0.12,
"max": 1.4,
"conditions": "VVDS = 28V",
"source_page": 29,
"source": "datasheet"
},
{
"name": "VDS fault-shutdown mode supply current",
"symbol": "IVDS,FS",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 0.85,
"max": 2.45,
"conditions": "VVDS = 16.5V",
"source_page": 29,
"source": "datasheet"
},
{
"name": "Battery supply range for jump start operation",
"symbol": "VVS",
"kind": "recommended_operating",
"unit": "V",
"min": 7,
"typ": null,
"max": 26.5,
"conditions": "Idle mode",
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{
"name": "VCC power-up time",
"symbol": "tVCC",
"kind": "timing",
"unit": "µs",
"min": null,
"typ": null,
"max": 200,
"conditions": "",
"source_page": 29,
"source": "datasheet"
},
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