component
L99ASC03GTR
Public Made by Adomby adom
STMicroelectronics Motor Driver ICs, TQFP-48-EP(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"schema_version": 1,
"type": "component",
"slug": "l99asc03gtr",
"title": "L99ASC03GTR",
"brief": "STMicroelectronics Motor Driver ICs, TQFP-48-EP(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
"license": "CC-BY-SA-4.0",
"tags": [
"component",
"power management ics",
"l99asc03gtr",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "L99ASC03GTR",
"manufacturer": "STMicroelectronics",
"package": "TQFP-48-EP(7x7)",
"pin_count": 49,
"category": "Power Management ICs",
"subcategory": "Motor Driver ICs",
"datasheet": "https://www.st.com/resource/en/datasheet/l99asc03gtr.pdf",
"parts": {
"symbol": "l99asc03gtr.kicad_sym",
"footprint": "l99asc03gtr.kicad_mod",
"model_3d": "l99asc03gtr-hero.glb",
"model_3d_plain": "l99asc03gtr-etched.glb",
"model_3d_step": "l99asc03gtr-etched.step",
"model_3d_step_plain": "l99asc03gtr.step",
"lbr": "l99asc03gtr.lbr"
},
"distributor_links": {
"lcsc": "C2150702",
"digikey": "497-17941-2-ND",
"mouser": "511-L99ASC03GTR"
},
"distributor_check": {
"checked_at": "2026-10-30T22:49:01Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "497-17941-2-ND",
"status": "found"
},
"mouser": {
"pn": "511-L99ASC03GTR",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "SL3",
"type": "bidirectional",
"description": "Source of external low-side MOSFET 3."
},
{
"number": "2",
"name": "CSI+",
"type": "input",
"description": "Current-sense amplifier positive input."
},
{
"number": "3",
"name": "CSI-",
"type": "input",
"description": "Current-sense amplifier negative input."
},
{
"number": "4",
"name": "SGND2",
"type": "power_in",
"description": "Signal ground 2."
},
{
"number": "5",
"name": "CSO",
"type": "output",
"description": "Current-sense amplifier output."
},
{
"number": "6",
"name": "IL3",
"type": "input",
"description": "Input of low-side switch 3, one input per gate driver with cross-current protection."
},
{
"number": "7",
"name": "IH3",
"type": "input",
"description": "Input of high-side switch 3, one input per gate driver with cross-current protection."
},
{
"number": "8",
"name": "IL2",
"type": "input",
"description": "Input of low-side switch 2, one input per gate driver with cross-current protection."
},
{
"number": "9",
"name": "IH2",
"type": "input",
"description": "Input of high-side switch 2, one input per gate driver with cross-current protection."
},
{
"number": "10",
"name": "IL1",
"type": "input",
"description": "Input of low-side switch 1, one input per gate driver with cross-current protection."
},
{
"number": "11",
"name": "IH1",
"type": "input",
"description": "Input of high-side switch 1, one input per gate driver with cross-current protection."
},
{
"number": "12",
"name": "SGND1",
"type": "power_in",
"description": "Signal ground 1."
},
{
"number": "13",
"name": "SDI",
"type": "input",
"description": "SPI serial data input, latched on the rising edge of SCK."
},
{
"number": "14",
"name": "SCK",
"type": "input",
"description": "SPI clock input."
},
{
"number": "15",
"name": "SDO",
"type": "output",
"description": "SPI serial data output, shifted out on the falling edge of SCK and high impedance when CSN is high."
},
{
"number": "16",
"name": "CSN",
"type": "input",
"description": "SPI chip select not input; communication is active when this input is logically low."
},
{
"number": "17",
"name": "BC",
"type": "input",
"description": "Block commutation sync pin."
},
{
"number": "18",
"name": "DIS",
"type": "input",
"description": "Disable input that turns off the gate driver outputs."
},
{
"number": "19",
"name": "NRES",
"type": "output",
"description": "NReset output, pulled up to VDD by an internal pull-up resistor after a delay tRP (typ. 2 ms)."
},
{
"number": "20",
"name": "AOUT",
"type": "output",
"description": "Analog multiplexer output for monitoring external supply voltages and internal junction temperature."
},
{
"number": "21",
"name": "BEMFOUT",
"type": "output",
"description": "Back EMF output."
},
{
"number": "22",
"name": "DOUT",
"type": "output",
"description": "Digital multiplexer output."
},
{
"number": "23",
"name": "NINT",
"type": "output",
"description": "Interrupt output."
},
{
"number": "24",
"name": "SGND3",
"type": "power_in",
"description": "Signal ground 3."
},
{
"number": "25",
"name": "Reserved",
"type": "unconnected",
"description": "Pin must be kept not connected."
},
{
"number": "26",
"name": "AGND",
"type": "power_in",
"description": "Analog ground."
},
{
"number": "27",
"name": "VDD",
"type": "power_out",
"description": "Voltage regulator output providing 5 V and a continuous load current up to 200 mA."
},
{
"number": "28",
"name": "Reserved",
"type": "unconnected",
"description": "Pin must be kept not connected."
},
{
"number": "29",
"name": "INH",
"type": "input",
"description": "Inhibit input for wake-up."
},
{
"number": "30",
"name": "VSREG",
"type": "power_in",
"description": "Voltage regulator power supply input; it has to be protected against negative voltages."
},
{
"number": "31",
"name": "VS",
"type": "power_in",
"description": "Charge pump power supply input; it has to be protected against negative voltages."
},
{
"number": "32",
"name": "CP1-",
"type": "output",
"description": "Charge pump pin for capacitor 1, negative side."
},
{
"number": "33",
"name": "CP1+",
"type": "output",
"description": "Charge pump pin for capacitor 1, positive side."
},
{
"number": "34",
"name": "CP2-",
"type": "output",
"description": "Charge pump pin for capacitor 2, negative side."
},
{
"number": "35",
"name": "CP2+",
"type": "output",
"description": "Charge pump pin for capacitor 2, positive side."
},
{
"number": "36",
"name": "CP",
"type": "power_out",
"description": "Charge pump output that supplies the gate drivers for full drive of the external MOSFETs."
},
{
"number": "37",
"name": "VSMS",
"type": "power_in",
"description": "Motor supply sense pin, robust against negative voltages, used to monitor the external MOSFET supply and as BEMF detection reference."
},
{
"number": "38",
"name": "GH1",
"type": "output",
"description": "Gate of external high-side MOSFET 1."
},
{
"number": "39",
"name": "SH1",
"type": "bidirectional",
"description": "Source of external high-side MOSFET 1."
},
{
"number": "40",
"name": "GL1",
"type": "output",
"description": "Gate of external low-side MOSFET 1."
},
{
"number": "41",
"name": "SL1",
"type": "bidirectional",
"description": "Source of external low-side MOSFET 1."
},
{
"number": "42",
"name": "GH2",
"type": "output",
"description": "Gate of external high-side MOSFET 2."
},
{
"number": "43",
"name": "SH2",
"type": "bidirectional",
"description": "Source of external high-side MOSFET 2."
},
{
"number": "44",
"name": "GL2",
"type": "output",
"description": "Gate of external low-side MOSFET 2."
},
{
"number": "45",
"name": "SL2",
"type": "bidirectional",
"description": "Source of external low-side MOSFET 2."
},
{
"number": "46",
"name": "GH3",
"type": "output",
"description": "Gate of external high-side MOSFET 3."
},
{
"number": "47",
"name": "SH3",
"type": "bidirectional",
"description": "Source of external high-side MOSFET 3."
},
{
"number": "48",
"name": "GL3",
"type": "output",
"description": "Gate of external low-side MOSFET 3."
},
{
"number": "49",
"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: Table 2 lists pins 1 to 48 only. The TQFP48-EP exposed pad is not given a pin number in the text, so"
],
"pages_sent": 20,
"cost_usd": 0.0367,
"at": "2026-10-30T22:48:50"
},
"datasheet": {
"url": "https://www.st.com/resource/en/datasheet/l99asc03gtr.pdf",
"pages": 70,
"sha256": "f86911f3d6459f33",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 49,
"described": 49,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "l99asc03gtr.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
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"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "b180586f3ee58503076782c9a1fc7102515fb0ece2d21b2fcfad5a1e2aa3df64",
"checked": "2026-10-30",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "l99asc03gtr-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
9.32,
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"zmin_mm": 0,
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"footprint_binding": "identity",
"sha256": "823866a939eb5653fa52f7da0b444b4ef7138bacad74e6c457f865d823cceacd",
"checked": "2026-10-30",
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}
]
},
"metadata": {
"specs": {
"Manufacturer": "STMicroelectronics",
"Package": "TQFP-48-EP(7x7)",
"Category": "Power Management ICs",
"Pins": "49"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "f86911f3d6459f3331e148bcf2c4d067f6f703784cfd01b287ea5aaabcde1dea",
"rows": [
{
"name": "Voltage regulator power supply voltage",
"symbol": "VSREG",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 40,
"conditions": "",
"source_page": 31,
"source": "datasheet"
},
{
"name": "Charge pump power supply voltage",
"symbol": "VS",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 40,
"conditions": "",
"source_page": 31,
"source": "datasheet"
},
{
"name": "Sensed motor supply voltage",
"symbol": "VSMS",
"kind": "absolute_maximum",
"unit": "V",
"min": -5,
"typ": null,
"max": 40,
"conditions": "-7 V for < 1.5 µs transients",
"source_page": 31,
"source": "datasheet"
},
{
"name": "Stabilized supply voltage",
"symbol": "VDD",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 6,
"conditions": "",
"source_page": 31,
"source": "datasheet"
},
{
"name": "Source signal voltage range",
"symbol": "VSLX, VSHX",
"kind": "absolute_maximum",
"unit": "V",
"min": -5,
"typ": null,
"max": 40,
"conditions": "",
"source_page": 31,
"source": "datasheet"
},
{
"name": "High Voltage Logic I/O voltage range",
"symbol": "VINH",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 40,
"conditions": "",
"source_page": 31,
"source": "datasheet"
},
{
"name": "Storage temperature",
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"kind": "absolute_maximum",
"unit": "°C",
"min": -55,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 32,
"source": "datasheet"
},
{
"name": "Dynamic junction temperature",
"symbol": "TJ_Peak",
"kind": "absolute_maximum",
"unit": "°C",
"min": null,
"typ": null,
"max": 160,
"conditions": "100hrs over lifetime; according to mission profile",
"source_page": 32,
"source": "datasheet"
},
{
"name": "Voltage regulator power supply voltage",
"symbol": "VSREG",
"kind": "recommended_operating",
"unit": "V",
"min": 6,
"typ": null,
"max": 28,
"conditions": "",
"source_page": 31,
"source": "datasheet"
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{
"name": "Charge pump power supply voltage",
"symbol": "VS",
"kind": "recommended_operating",
"unit": "V",
"min": 6,
"typ": null,
"max": 28,
"conditions": "",
"source_page": 31,
"source": "datasheet"
},
{
"name": "Sensed motor supply voltage",
"symbol": "VSMS",
"kind": "recommended_operating",
"unit": "V",
"min": 6,
"typ": null,
"max": 28,
"conditions": "",
"source_page": 32,
"source": "datasheet"
},
{
"name": "Current sense amplifier input voltage range",
"symbol": "VCSIP, VCSIN",
"kind": "recommended_operating",
"unit": "V",
"min": -1,
"typ": null,
"max": 1,
"conditions": "",
"source_page": 32,
"source": "datasheet"
},
{
"name": "Operating junction temperature",
"symbol": "Tj",
"kind": "recommended_operating",
"unit": "°C",
"min": -40,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 32,
"source": "datasheet"
},
{
"name": "Temp. warning threshold 1",
"symbol": "TW1",
"kind": "electrical",
"unit": "°C",
"min": 120,
"typ": 135,
"max": 150,
"conditions": "TEMPM = X",
"source_page": 32,
"source": "datasheet"
},
{
"name": "Temp. warning threshold 2",
"symbol": "TW2",
"kind": "electrical",
"unit": "°C",
"min": 140,
"typ": 155,
"max": 170,
"conditions": "TEMPM = 1",
"source_page": 32,
"source": "datasheet"
},
{
"name": "Thermal shutdown threshold 2",
"symbol": "TSD2",
"kind": "electrical",
"unit": "°C",
"min": 160,
"typ": 175,
"max": 190,
"conditions": "TEMPM = X",
"source_page": 32,
"source": "datasheet"
},
{
"name": "Overvoltage warning threshold",
"symbol": "VSOVW, VSREGOVW, VSMSOVW",
"kind": "electrical",
"unit": "V",
"min": 18,
"typ": 20,
"max": 22,
"conditions": "",
"source_page": 33,
"source": "datasheet"
},
{
"name": "Overvoltage threshold",
"symbol": "VSOV, VSREGOV, VSMSOV",
"kind": "electrical",
"unit": "V",
"min": 28.1,
"typ": 30,
"max": 32,
"conditions": "",
"source_page": 33,
"source": "datasheet"
},
{
"name": "Under-voltage threshold",
"symbol": "VSUV, VSREGUV, VSMSUV",
"kind": "electrical",
"unit": "V",
"min": 5.2,
"typ": 5.5,
"max": 5.7,
"conditions": "VS, VSREG, VSMS decreasing",
"source_page": 33,
"source": "datasheet"
},
{
"name": "Current consumption",
"symbol": "IS",
"kind": "electrical",
"unit": "mA",
"min": 5,
"typ": null,
"max": 10,
"conditions": "VS =VSREG =VSMS = 12 V; active mode; open outputs",
"source_page": 33,
"source": "datasheet"
},
{
"name": "Quiescent current in VBAT stand-by",
"symbol": "ISREGQ + ISMQ +ISQ",
"kind": "electrical",
"unit": "µA",
"min": 24,
"typ": null,
"max": 38.5,
"conditions": "VS = VSREG = VSMS = 12 V; VBAT standby (no wakeup); TTest = -40°C to 25°C; open outputs",
"source_page": 33,
"source": "datasheet"
},
{
"name": "Output voltage",
"symbol": "VDD",
"kind": "electrical",
"unit": "V",
"min": 4.865,
"typ": 5,
"max": 5.1,
"conditions": "Iload = 0 mA to 200 mA; 6 V < Vs < 18 V; -40°C < Tj < 150°C",
"source_page": 34,
"source": "datasheet"
},
{
"name": "Drop-out Voltage",
"symbol": "VDP",
"kind": "electrical",
"unit": "V",
"min": 0.2,
"typ": null,
"max": 0.4,
"conditions": "ILOAD = 50 mA; VSREG = 4.5 V",
"source_page": 34,
"source": "datasheet"
},
{
"name": "Drop-out Voltage",
"symbol": "VDP",
"kind": "electrical",
"unit": "V",
"min": 0.3,
"typ": null,
"max": 0.5,
"conditions": "ILOAD = 100 mA; VSREG = 4.5 V",
"source_page": 34,
"source": "datasheet"
},
{
"name": "Output current in active mode",
"symbol": "IDD",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": null,
"max": 200,
"conditions": "Max. continuous load current",
"source_page": 34,
"source": "datasheet"
},
{
"name": "Short circuit output current",
"symbol": "IDDshort",
"kind": "electrical",
"unit": "mA",
"min": 300,
"typ": 600,
"max": 950,
"conditions": "Current limitation",
"source_page": 34,
"source": "datasheet"
},
{
"name": "VDD deactivation time after thermal shutdown",
"symbol": "tTSD",
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