component
A4980KLPTR-T
Public Made by Adomby adom
Allegro MicroSystems, LLC Motor Driver ICs, TSSOP-28-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"schema_version": 1,
"type": "component",
"slug": "a4980klptr-t",
"title": "A4980KLPTR-T",
"brief": "Allegro MicroSystems, LLC Motor Driver ICs, TSSOP-28-EP. 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",
"a4980klptr-t",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "A4980KLPTR-T",
"manufacturer": "Allegro MicroSystems, LLC",
"package": "TSSOP-28-EP",
"pin_count": 29,
"category": "Power Management ICs",
"subcategory": "Motor Driver ICs",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/57483fb23494d572959d5489e1aac683.pdf",
"parts": {
"symbol": "a4980klptr-t.kicad_sym",
"footprint": "a4980klptr-t.kicad_mod",
"model_3d": "a4980klptr-t-hero.glb",
"model_3d_plain": "a4980klptr-t-etched.glb",
"model_3d_step": "a4980klptr-t-etched.step",
"model_3d_step_plain": "a4980klptr-t.step",
"lbr": "a4980klptr-t.lbr"
},
"distributor_links": {
"lcsc": "C459290",
"digikey": "620-1461-2-ND",
"mouser": "250-A4980KLPTR-T"
},
"distributor_check": {
"checked_at": "2026-10-27T01:26:05Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "620-1461-2-ND",
"status": "found",
"lifecycle": "Active"
},
"mouser": {
"pn": "250-A4980KLPTR-T",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "SENSA",
"type": "passive",
"description": "Current sense node for bridge A; connect a sense resistor between SENSA and PGND, with sense voltage limited to -0.3 to 1 V."
},
{
"number": "2",
"name": "STRn",
"type": "input",
"description": "Serial data strobe and serial access enable; when high, SCK and SDI activity is ignored and SDO is high impedance (-0.3 to 6 V)."
},
{
"number": "3",
"name": "DIR",
"type": "input",
"description": "Direction logic input; direction changes on the next STEP rising edge, and it has no effect when using the serial interface (-0.3 to 6 V)."
},
{
"number": "4",
"name": "OAP",
"type": "output",
"description": "Bridge A positive output for motor phase A, rated -0.3 to VBB, with positive current flowing from OAM to OAP."
},
{
"number": "5",
"name": "OSC",
"type": "input",
"description": "Oscillator input; tie to AGND for the internal 4 MHz oscillator, connect a resistor to VDD to set the frequency, or drive an external 3 to 5 MHz clock."
},
{
"number": "6",
"name": "SDI",
"type": "input",
"description": "Serial data input, 16-bit word MSB first, latched on the SCK rising edge (-0.3 to 6 V)."
},
{
"number": "7",
"name": "AGND",
"type": "power_in",
"description": "Analog reference ground, a quiet return for measurement and input references that must be connected to PGND externally."
},
{
"number": "8",
"name": "REF",
"type": "input",
"description": "Reference input voltage setting the absolute maximum current for both phases (0.8 to 2 V); defaults to the internal reference when tied to VDD."
},
{
"number": "9",
"name": "SCK",
"type": "input",
"description": "Serial interface clock; data is latched on the rising edge, with 16 rising edges required per write and SCK held high when STRn changes."
},
{
"number": "10",
"name": "VDD",
"type": "power_in",
"description": "Logic supply of 3 to 5.5 V, compatible with 3.3 V and 5 V logic, to be decoupled with a 100 nF ceramic capacitor."
},
{
"number": "11",
"name": "OBP",
"type": "output",
"description": "Bridge B positive output for motor phase B, rated -0.3 to VBB, with positive current flowing from OBM to OBP."
},
{
"number": "12",
"name": "MS1",
"type": "input",
"description": "Microstep resolution select input, ORed with the MS1 bit in Configuration Register 0 (-0.3 to 6 V)."
},
{
"number": "13",
"name": "MS0",
"type": "input",
"description": "Microstep resolution select input, ORed with the MS0 bit in Configuration Register 0 (-0.3 to 6 V)."
},
{
"number": "14",
"name": "SENSB",
"type": "passive",
"description": "Current sense node for bridge B; connect a sense resistor between SENSB and PGND, with sense voltage limited to -0.3 to 1 V."
},
{
"number": "15",
"name": "VBBB",
"type": "power_in",
"description": "Motor supply for bridge B, which also supplies the internal regulators and charge pump, rated -0.3 to 50 V and connected to VBBA."
},
{
"number": "16",
"name": "DIAG",
"type": "output",
"description": "Diagnostic output selected via Configuration Register 1, defaulting to a low-true fault output (-0.3 to 6 V)."
},
{
"number": "17",
"name": "SDO",
"type": "tri_state",
"description": "Serial data output that is high impedance when STRn is high and outputs the diagnostic register Fault flag when STRn goes low."
},
{
"number": "18",
"name": "OBM",
"type": "output",
"description": "Bridge B negative output for motor phase B, rated -0.3 to VBB."
},
{
"number": "19",
"name": "STEP",
"type": "input",
"description": "Step logic input where the motor advances on the rising edge, a filtered input with hysteresis (-0.3 to 6 V)."
},
{
"number": "20",
"name": "VREG",
"type": "power_out",
"description": "Regulated supply for bridge gate drive, typically 7.2 V, to be decoupled to ground with a 220 nF ceramic capacitor."
},
{
"number": "21",
"name": "PGND",
"type": "power_in",
"description": "Digital and power ground, to be connected to supply ground and AGND."
},
{
"number": "22",
"name": "VCP",
"type": "passive",
"description": "Above-supply voltage for high-side drive, with a 100 nF ceramic capacitor connected between VCP and VBB as the pump reservoir."
},
{
"number": "23",
"name": "CP1",
"type": "passive",
"description": "Charge pump capacitor terminal, with a 100 nF (50 V) ceramic capacitor connected between CP1 and CP2."
},
{
"number": "24",
"name": "CP2",
"type": "passive",
"description": "Charge pump capacitor terminal, with a 100 nF (50 V) ceramic capacitor connected between CP1 and CP2."
},
{
"number": "25",
"name": "OAM",
"type": "output",
"description": "Bridge A negative output for motor phase A, rated -0.3 to VBB."
},
{
"number": "26",
"name": "ENABLE",
"type": "input",
"description": "Bridge enable input; when low it turns off all output bridge FETs while internal logic continues to follow input commands."
},
{
"number": "27",
"name": "RESETn",
"type": "input",
"description": "Chip reset that resets faults when pulsed low and forces sleep when held low longer than the 10 µs reset shutdown width."
},
{
"number": "28",
"name": "VBBA",
"type": "power_in",
"description": "Motor supply for bridge A, which also supplies the internal regulators and charge pump, rated -0.3 to 50 V and connected to VBBB."
},
{
"number": "29",
"name": "PAD",
"type": "power_in",
"description": "Exposed thermal pad that must be connected to ground and soldered to the board for thermal performance."
}
],
"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 lists the exposed pad as 'PAD' with number '–'. I numbered it '29' as a convention for; Pin types for SENSA, SENSB, VCP, CP1 and CP2 are inferred as passive from their descriptions, becaus",
"1/29 pins cited to the wrong page (name found elsewhere): ['29:PAD@p4']"
],
"pages_sent": 46,
"cost_usd": 0.5863,
"at": "2026-10-27T01:25:34"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/57483fb23494d572959d5489e1aac683.pdf",
"pages": 46,
"sha256": "9c15a9f98e3c9e4f",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 29,
"described": 29,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "a4980klptr-t.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
7.2,
9.7,
1.05
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "ff242f1d3be9d09e7f929707a2c5b1ee974a4f882053b04bcdb1cd2cb21223ef",
"checked": "2026-10-27",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "a4980klptr-t-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
7.2,
9.7,
1.05
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "d9ca3392ff3533a199886239360411e4bad0ec0121bdf01b82fd843851a4e049",
"checked": "2026-10-27",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "Allegro MicroSystems, LLC",
"Package": "TSSOP-28-EP",
"Category": "Power Management ICs",
"Pins": "29"
},
"appearance": {
"contacts": {
"quote": "lead (Pb) free with 100% matte-tin leadframe plating. A4980-DS, Rev. 4",
"page": 1,
"doc": "ds.pdf",
"plating": "tin"
},
"version": 1,
"datasheet_sha256": "9c15a9f98e3c9e4fce39df317c8d4451abe4060349007a3099fe54ffae8eacbe"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "9c15a9f98e3c9e4fce39df317c8d4451abe4060349007a3099fe54ffae8eacbe",
"rows": [
{
"name": "Load Supply Voltage (absolute max)",
"symbol": "VBBx",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 50,
"conditions": "Applies to VBBA and VBBB",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Logic Supply Voltage (absolute max)",
"symbol": "VDD",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 6,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Ambient Operating Temperature Range",
"symbol": "TA",
"kind": "absolute_maximum",
"unit": "°C",
"min": -40,
"typ": null,
"max": 150,
"conditions": "Range K; limited by power dissipation",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Maximum Continuous Junction Temperature",
"symbol": "TJ(max)",
"kind": "absolute_maximum",
"unit": "°C",
"min": null,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Transient Junction Temperature",
"symbol": "TtJ",
"kind": "absolute_maximum",
"unit": "°C",
"min": null,
"typ": null,
"max": 175,
"conditions": "Overtemperature event not exceeding 10 s, lifetime duration not exceeding 10 hours",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Storage Temperature Range",
"symbol": "Tstg",
"kind": "absolute_maximum",
"unit": "°C",
"min": -55,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Package Thermal Resistance Junction to Ambient",
"symbol": "RθJA",
"kind": "thermal",
"unit": "ºC/W",
"min": null,
"typ": 28,
"max": null,
"conditions": "4-layer PCB based on JEDEC standard",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Package Thermal Resistance Junction to Ambient",
"symbol": "RθJA",
"kind": "thermal",
"unit": "ºC/W",
"min": null,
"typ": 32,
"max": null,
"conditions": "2-layer PCB with 24.52 cm2 of copper area each side",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Package Thermal Resistance Junction to Pad",
"symbol": "RθJP",
"kind": "thermal",
"unit": "ºC/W",
"min": null,
"typ": 2,
"max": null,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Load Supply Voltage Range",
"symbol": "VBB",
"kind": "electrical",
"unit": "V",
"min": 0,
"typ": null,
"max": 50,
"conditions": "Functional",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Load Supply Voltage Range",
"symbol": "VBB",
"kind": "electrical",
"unit": "V",
"min": 3.3,
"typ": null,
"max": null,
"conditions": "Outputs Driving (max VBBOV)",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Load Supply Quiescent Current",
"symbol": "IBBQ",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": null,
"max": 4,
"conditions": "ENABLE = 0",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Load Supply Quiescent Current",
"symbol": "IBBQ",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 1,
"max": 10,
"conditions": "Sleep mode",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Logic Supply Voltage Range",
"symbol": "VDD",
"kind": "electrical",
"unit": "V",
"min": 3,
"typ": null,
"max": 5.5,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Logic Supply Quiescent Current",
"symbol": "IDDQ",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": null,
"max": 5,
"conditions": "ENABLE = 0",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Logic Supply Quiescent Current",
"symbol": "IDDQ",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": null,
"max": 5.5,
"conditions": "ENABLE=0, VDD > 5 V",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Logic Supply Quiescent Current",
"symbol": "IDDQ",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 4,
"max": 15,
"conditions": "Sleep mode",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Internal Regulator Dropout Voltage",
"symbol": "VREGDO",
"kind": "electrical",
"unit": "mV",
"min": null,
"typ": 100,
"max": 200,
"conditions": "ENABLE = 0, RESETn = 1, VBB > 3.5 V",
"source_page": 5,
"source": "datasheet"
},
{
"name": "High-Side On-Resistance",
"symbol": "RONH",
"kind": "electrical",
"unit": "mΩ",
"min": null,
"typ": 500,
"max": 600,
"conditions": "VBB = 13.5 V, IOUT = –1 A, TJ = 25°C",
"source_page": 5,
"source": "datasheet"
},
{
"name": "High-Side On-Resistance",
"symbol": "RONH",
"kind": "electrical",
"unit": "mΩ",
"min": null,
"typ": 900,
"max": 1100,
"conditions": "VBB = 13.5 V, IOUT = –1 A, TJ = 150°C",
"source_page": 5,
"source": "datasheet"
},
{
"name": "High-Side On-Resistance",
"symbol": "RONH",
"kind": "electrical",
"unit": "mΩ",
"min": null,
"typ": 625,
"max": 750,
"conditions": "VBB = 7 V, IOUT = –1 A, TJ = 25°C",
"source_page": 5,
"source": "datasheet"
},
{
"name": "High-Side Body Diode Forward Voltage",
"symbol": "VFH",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 1.4,
"conditions": "IF = 1 A",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Low-Side On-Resistance",
"symbol": "RONL",
"kind": "electrical",
"unit": "mΩ",
"min": null,
"typ": 500,
"max": 600,
"conditions": "VBB = 13.5 V, IOUT = 1 A, TJ = 25°C",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Low-Side On-Resistance",
"symbol": "RONL",
"kind": "electrical",
"unit": "mΩ",
"min": null,
"typ": 900,
"max": 1100,
"conditions": "VBB = 13.5 V, IOUT = 1 A, TJ = 150°C",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Low-Side On-Resistance",
"symbol": "RONL",
"kind": "electrical",
"unit": "mΩ",
"min": null,
"typ": 625,
"max": 750,
"conditions": "VBB = 7 V, IOUT = 1 A, TJ = 25°C",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Low-Side Body Diode Forward Voltage",
"symbol": "VFL",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 1.4,
"conditions": "IF = –1 A",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Output Leakage Current",
"symbol": "ILO",
"kind": "electrical",
"unit": "µA",
"min": -120,
"typ": -65,
"max": null,
"conditions": "ENABLE = 0, RESETn = 1, VO = VBB",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Output Leakage Current",
"symbol": "ILO",
"kind": "electrical",
"unit": "µA",
"min": -200,
"typ": -120,
"max": null,
"conditions": "ENABLE = 0, RESETn = 1, VO = 0 V",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Output Leakage Current",
"symbol": "ILO",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": null,
"max": 20,
"conditions": "ENABLE = 0, RESETn = 0, VO = VBB",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Output Leakage Current",
"symbol": "ILO",
"kind": "electrical",
"unit": "µA",
"min": -20,
"typ": null,
"max": null,
"conditions": "ENABLE = 0, RESETn = 0, VO = 0 V",
"source_page": 5,
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