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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{
"slug": "l99asc03gtr",
"version": "0.1.0",
"type": "component",
"description": "STMicroelectronics Motor Driver ICs, TQFP-48-EP(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"power management ics",
"l99asc03gtr",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"l99asc03gtr.kicad_sym",
"l99asc03gtr.kicad_mod",
"l99asc03gtr.glb",
"l99asc03gtr.step",
"l99asc03gtr.lbr",
"docs/hero.png",
"docs/l99asc03gtr-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"l99asc03gtr-hero.glb",
"l99asc03gtr-hero.overlay.json",
"l99asc03gtr-etched.glb"
],
"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",
"extents_mm": [
9.32,
9.32,
1.6
],
"zmin_mm": -0.0,
"centre_offset_mm": 0.0,
"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,
9.32,
1.6
],
"zmin_mm": -0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "823866a939eb5653fa52f7da0b444b4ef7138bacad74e6c457f865d823cceacd",
"checked": "2026-10-30",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
}
}