component
A3988SEVTR-T
Public Made by Adomby adom
Allegro MicroSystems, LLC Motor Driver ICs, QFN-36-EP(6x6). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"slug": "a3988sevtr-t",
"version": "0.1.0",
"type": "component",
"description": "Allegro MicroSystems, LLC Motor Driver ICs, QFN-36-EP(6x6). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"power management ics",
"a3988sevtr-t",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"a3988sevtr-t.kicad_sym",
"a3988sevtr-t.kicad_mod",
"a3988sevtr-t.glb",
"a3988sevtr-t.step",
"a3988sevtr-t.lbr",
"docs/hero.png",
"docs/a3988sevtr-t-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"a3988sevtr-t-hero.glb",
"a3988sevtr-t-hero.overlay.json",
"a3988sevtr-t-etched.glb"
],
"component": {
"mpn": "A3988SEVTR-T",
"manufacturer": "Allegro MicroSystems, LLC",
"package": "QFN-36-EP(6x6)",
"pin_count": 37,
"category": "Power Management ICs",
"subcategory": "Motor Driver ICs",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/03d2c4cc182247158fe9dd2903120c7b.pdf",
"parts": {
"symbol": "a3988sevtr-t.kicad_sym",
"footprint": "a3988sevtr-t.kicad_mod",
"model_3d": "a3988sevtr-t-hero.glb",
"model_3d_plain": "a3988sevtr-t-etched.glb",
"model_3d_step": "a3988sevtr-t-etched.step",
"model_3d_step_plain": "a3988sevtr-t.step",
"lbr": "a3988sevtr-t.lbr"
},
"distributor_links": {
"lcsc": "C163256",
"digikey": "620-1176-2-ND",
"mouser": "250-A3988SEVTR-T"
},
"distributor_check": {
"checked_at": "2026-10-31T09:06:06Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "620-1176-2-ND",
"status": "found",
"lifecycle": "Not For New Designs"
},
"mouser": {
"pn": "250-A3988SEVTR-T",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "I04",
"type": "input",
"description": "Control input I0 for bridge 4, setting the current level with I14; logic levels are 0.7×VDD min high and 0.3×VDD max low."
},
{
"number": "2",
"name": "OUT1A",
"type": "output",
"description": "DMOS full-bridge 1 output A, rated up to 1.2 A and 36 V."
},
{
"number": "3",
"name": "SENSE1",
"type": "passive",
"description": "Sense resistor terminal for bridge 1; voltage must not exceed ±500 mV."
},
{
"number": "4",
"name": "OUT1B",
"type": "output",
"description": "DMOS full-bridge 1 output B, rated up to 1.2 A and 36 V."
},
{
"number": "5",
"name": "VBB1",
"type": "power_in",
"description": "Load supply voltage, 8.0 to 36 V operating; must be connected together with VBB2 close to the device."
},
{
"number": "6",
"name": "OUT2B",
"type": "output",
"description": "DMOS full-bridge 2 output B, rated up to 1.2 A and 36 V."
},
{
"number": "7",
"name": "SENSE2",
"type": "passive",
"description": "Sense resistor terminal for bridge 2; voltage must not exceed ±500 mV."
},
{
"number": "8",
"name": "OUT2A",
"type": "output",
"description": "DMOS full-bridge 2 output A, rated up to 1.2 A and 36 V."
},
{
"number": "9",
"name": "PHASE4",
"type": "input",
"description": "Control input setting the current direction of bridge 4."
},
{
"number": "10",
"name": "PHASE3",
"type": "input",
"description": "Control input setting the current direction of bridge 3."
},
{
"number": "11",
"name": "VDD",
"type": "power_in",
"description": "Logic supply voltage, 3.0 to 5.5 V operating."
},
{
"number": "12",
"name": "VREF1",
"type": "input",
"description": "Analog reference input for bridge 1, 0.0 to 1.5 V operating, setting ITripMax = VREF/(3×RS)."
},
{
"number": "13",
"name": "VREF2",
"type": "input",
"description": "Analog reference input for bridge 2, 0.0 to 1.5 V operating, setting ITripMax = VREF/(3×RS)."
},
{
"number": "14",
"name": "VREF3",
"type": "input",
"description": "Analog reference input for bridge 3, 0.0 to 1.5 V operating, setting ITripMax = VREF/(3×RS)."
},
{
"number": "15",
"name": "VREF4",
"type": "input",
"description": "Analog reference input for bridge 4, 0.0 to 1.5 V operating, setting ITripMax = VREF/(3×RS)."
},
{
"number": "16",
"name": "GND",
"type": "power_in",
"description": "Ground."
},
{
"number": "17",
"name": "PHASE2",
"type": "input",
"description": "Control input setting the current direction of bridge 2."
},
{
"number": "18",
"name": "PHASE1",
"type": "input",
"description": "Control input setting the current direction of bridge 1."
},
{
"number": "19",
"name": "I14",
"type": "input",
"description": "Control input I1 for bridge 4, setting the current level with I04."
},
{
"number": "20",
"name": "OUT4A",
"type": "output",
"description": "DMOS full-bridge 4 output A, rated up to 1.2 A and 36 V."
},
{
"number": "21",
"name": "SENSE4",
"type": "passive",
"description": "Sense resistor terminal for bridge 4; voltage must not exceed ±500 mV."
},
{
"number": "22",
"name": "OUT4B",
"type": "output",
"description": "DMOS full-bridge 4 output B, rated up to 1.2 A and 36 V."
},
{
"number": "23",
"name": "VBB2",
"type": "power_in",
"description": "Load supply voltage, 8.0 to 36 V operating; must be connected together with VBB1 close to the device."
},
{
"number": "24",
"name": "OUT3B",
"type": "output",
"description": "DMOS full-bridge 3 output B, rated up to 1.2 A and 36 V."
},
{
"number": "25",
"name": "SENSE3",
"type": "passive",
"description": "Sense resistor terminal for bridge 3; voltage must not exceed ±500 mV."
},
{
"number": "26",
"name": "OUT3A",
"type": "output",
"description": "DMOS full-bridge 3 output A, rated up to 1.2 A and 36 V."
},
{
"number": "27",
"name": "I13",
"type": "input",
"description": "Control input I1 for bridge 3, setting the current level with I03."
},
{
"number": "28",
"name": "I12",
"type": "input",
"description": "Control input I1 for bridge 2, setting the current level with I02."
},
{
"number": "29",
"name": "I11",
"type": "input",
"description": "Control input I1 for bridge 1, setting the current level with I01."
},
{
"number": "30",
"name": "GND",
"type": "power_in",
"description": "Ground."
},
{
"number": "31",
"name": "VCP",
"type": "passive",
"description": "Reservoir capacitor terminal; a 0.1 µF ceramic capacitor is required between VCP and VBBx."
},
{
"number": "32",
"name": "CP1",
"type": "passive",
"description": "Charge pump capacitor terminal; a 0.1 µF ceramic capacitor is connected between CP1 and CP2."
},
{
"number": "33",
"name": "CP2",
"type": "passive",
"description": "Charge pump capacitor terminal; a 0.1 µF ceramic capacitor is connected between CP1 and CP2."
},
{
"number": "34",
"name": "I01",
"type": "input",
"description": "Control input I0 for bridge 1, setting the current level with I11."
},
{
"number": "35",
"name": "I02",
"type": "input",
"description": "Control input I0 for bridge 2, setting the current level with I12."
},
{
"number": "36",
"name": "I03",
"type": "input",
"description": "Control input I0 for bridge 3, setting the current level with I13."
},
{
"number": "37",
"name": "PAD",
"type": "passive",
"description": "Exposed pad for enhanced thermal performance; should be soldered to the PCB."
}
],
"provenance": {
"extractor": "extract_pins 0.3",
"factory_chain": {
"factory": "2.0.0",
"extractor": "extract_pins 0.3",
"primary_model": "claude-sonnet-5-5",
"primary_mode": "text",
"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: The datasheet does not state that the exposed PAD is electrically ground. The layout section only de; Pin-type choices for SENSEx (passive), VCP, CP1 and CP2 (passive) are inferred from their function d"
],
"pages_sent": 14,
"cost_usd": 0.1612,
"at": "2026-10-31T09:05:59"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/03d2c4cc182247158fe9dd2903120c7b.pdf",
"pages": 14,
"sha256": "d98c46bb6e4ac606",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 37,
"described": 37,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "a3988sevtr-t.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
6.0,
6.0,
0.77
],
"zmin_mm": 0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "6212c4fd2463ccb7c6ae2c35f5e24c80884153fcaeaf8e86549c0e49087bc8bb",
"checked": "2026-10-31",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "a3988sevtr-t-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
6.0,
6.0,
0.77
],
"zmin_mm": 0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "89865514c9eadcb26cbafa27371e79091f0364a221ee7c4f9acd5efb2db58bbe",
"checked": "2026-10-31",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
],
"package_dims": {
"package_code": "EV",
"source_page": 12,
"D": {
"nom_mm": 6.0,
"range_mm": [
null,
null
]
},
"E1": {
"nom_mm": 6.0,
"range_mm": [
null,
null
]
},
"e": {
"nom_mm": 0.5,
"range_mm": [
null,
null
]
},
"A": {
"nom_mm": 0.9,
"range_mm": [
null,
null
]
},
"source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
"model_check": {
"file": "a3988sevtr-t.step",
"verdict": "PASS",
"reasons": [
"height within the datasheet's package drawing"
],
"by": "factory/package_fit.py"
}
}
}
}