component
A4963GLPTR-T
Public Made by Adomby adom
Allegro MicroSystems, LLC Motor Driver ICs, TSSOP-20-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"slug": "a4963glptr-t",
"title": "A4963GLPTR-T",
"brief": "Allegro MicroSystems, LLC Motor Driver ICs, TSSOP-20-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 supply chip",
"a4963glptr-t",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "A4963GLPTR-T",
"manufacturer": "Allegro MicroSystems, LLC",
"package": "TSSOP-20-EP",
"pin_count": 21,
"category": "Power Supply Chip",
"subcategory": "Motor Driver ICs",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/daddb46aaaf2f556f753c200e66dd904.pdf",
"parts": {
"symbol": "a4963glptr-t.kicad_sym",
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"model_3d_step": "a4963glptr-t-etched.step",
"model_3d_step_plain": "a4963glptr-t.step",
"lbr": "a4963glptr-t.lbr"
},
"distributor_links": {
"lcsc": "C459288",
"digikey": "620-1686-2-ND",
"mouser": "250-A4963GLPTR-T"
},
"distributor_check": {
"checked_at": "2026-10-23T09:15:35Z",
"source": "Component Ocean /api/assign-pns",
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"pn": "620-1686-2-ND",
"status": "found",
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"pn": "250-A4963GLPTR-T",
"status": "found"
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},
"pins": [
{
"number": "1",
"name": "VBB",
"type": "power_in",
"description": "Main supply for internal regulators and charge pump, 4.2 to 50 V operating (absolute max 50 V), connected through reverse-voltage protection and decoupled with ceramic capacitors."
},
{
"number": "2",
"name": "FAULTn",
"type": "output",
"description": "Open-drain active-low fault output that can be tied to the PWM input for a single-wire ECU interface and can be shorted to ground or VBB without damage (-0.3 to 50 V)."
},
{
"number": "3",
"name": "SPD",
"type": "output",
"description": "Open-drain speed output with programmable FG (electrical cycle) or TACHO (commutation) frequency, can be shorted to ground or VBB without damage (-0.3 to 50 V)."
},
{
"number": "4",
"name": "PWM",
"type": "input",
"description": "Programmable PWM input setting the motor operating mode and proportional duty-cycle demand, pulled low for fault, -0.3 to 50 V and can be shorted to ground or VBB without damage."
},
{
"number": "5",
"name": "SDO",
"type": "tri_state",
"description": "Serial data output that is high impedance when STRn is high and outputs the diagnostic register fault flag (bit 15) as soon as STRn goes low (-0.3 to 6.5 V)."
},
{
"number": "6",
"name": "SCK",
"type": "input",
"description": "Serial clock that latches SDI on the rising edge, requires 16 rising edges per write and must be held high when STRn changes (-0.3 to 6.5 V)."
},
{
"number": "7",
"name": "STRn",
"type": "input",
"description": "Serial strobe (chip select) input, active low; when high, SCK and SDI activity is ignored and SDO is high impedance (-0.3 to 6.5 V)."
},
{
"number": "8",
"name": "SDI",
"type": "input",
"description": "Serial data input, 16-bit word MSB first (-0.3 to 6.5 V)."
},
{
"number": "9",
"name": "GND",
"type": "power_in",
"description": "Analog reference, digital and power ground, connected to supply ground."
},
{
"number": "10",
"name": "CSM",
"type": "input",
"description": "Negative differential current sense amplifier input, connected directly to one end of the sense resistor with a separate PCB trace (-4 to 6.5 V)."
},
{
"number": "11",
"name": "CSP",
"type": "input",
"description": "Positive differential current sense amplifier input, connected directly to one end of the sense resistor with a separate PCB trace (-4 to 6.5 V)."
},
{
"number": "12",
"name": "GLC",
"type": "output",
"description": "Phase C low-side gate drive output for the external N-channel MOSFET (-0.3 to 18 V)."
},
{
"number": "13",
"name": "GLB",
"type": "output",
"description": "Phase B low-side gate drive output for the external N-channel MOSFET (-0.3 to 18 V)."
},
{
"number": "14",
"name": "GLA",
"type": "output",
"description": "Phase A low-side gate drive output for the external N-channel MOSFET (-0.3 to 18 V)."
},
{
"number": "15",
"name": "GHC",
"type": "output",
"description": "Phase C high-side gate drive output for the external P-channel MOSFET (VBB - 18 to VBB + 0.3 V)."
},
{
"number": "16",
"name": "GHB",
"type": "output",
"description": "Phase B high-side gate drive output for the external P-channel MOSFET (VBB - 18 to VBB + 0.3 V)."
},
{
"number": "17",
"name": "GHA",
"type": "output",
"description": "Phase A high-side gate drive output for the external P-channel MOSFET (VBB - 18 to VBB + 0.3 V)."
},
{
"number": "18",
"name": "SC",
"type": "input",
"description": "Phase C motor connection that senses the voltage switched across the load (-4 to 51 V)."
},
{
"number": "19",
"name": "SB",
"type": "input",
"description": "Phase B motor connection that senses the voltage switched across the load (-4 to 51 V)."
},
{
"number": "20",
"name": "SA",
"type": "input",
"description": "Phase A motor connection that senses the voltage switched across the load (-4 to 51 V)."
},
{
"number": "21",
"name": "PAD",
"type": "passive",
"description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
}
],
"provenance": {
"extractor": "extract_pins 0.3",
"factory_chain": {
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"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: Terminal list table on page 4 labels pin 12 as 'GLA' with function 'Phase C LS FET gate drive'; the ; Exposed pad is listed as 'Pad' without a number; 'PAD' used as its number. Pad is stated to connect ; Pin types for open-drain outputs (FAULTn, SPD), SDO tri-state and sense inputs SA/SB/SC are inferred"
],
"pages_sent": 8,
"cost_usd": 0.1005,
"at": "2026-10-23T09:14:56"
},
"datasheet": {
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"pages": 42,
"sha256": "88b25f3118cd7ef6",
"source_tier": "lcsc"
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"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 21,
"described": 21,
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"zmin_mm": 0,
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"footprint_binding": "identity",
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"checked": "2026-10-23",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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{
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"metadata": {
"specs": {
"Manufacturer": "Allegro MicroSystems, LLC",
"Package": "TSSOP-20-EP",
"Category": "Power Supply Chip",
"Pins": "21"
},
"characteristics": {
"version": 1,
"source": "datasheet",
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"rows": [
{
"name": "VBB Functional Operating Range (outputs active)",
"symbol": "VBB",
"kind": "recommended_operating",
"unit": "V",
"min": 4.2,
"typ": null,
"max": 50,
"conditions": "Operating; outputs active",
"source_page": 6,
"source": "datasheet"
},
{
"name": "VBB Functional Operating Range (outputs disabled)",
"symbol": "VBB",
"kind": "recommended_operating",
"unit": "V",
"min": 4,
"typ": null,
"max": 50,
"conditions": "Operating; outputs disabled",
"source_page": 6,
"source": "datasheet"
},
{
"name": "VBB Functional Operating Range (no unsafe states)",
"symbol": "VBB",
"kind": "recommended_operating",
"unit": "V",
"min": 0,
"typ": null,
"max": 50,
"conditions": "No unsafe states",
"source_page": 6,
"source": "datasheet"
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{
"name": "VBB Quiescent Current",
"symbol": "IBBQ",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 12,
"max": 18,
"conditions": "PWM = inactive, VBB = 12 V",
"source_page": 6,
"source": "datasheet"
},
{
"name": "System Clock Period",
"symbol": "tOSC",
"kind": "timing",
"unit": "ns",
"min": 47.5,
"typ": 50,
"max": 52.5,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "GHx Pull-Up On Resistance",
"symbol": "RGHUP",
"kind": "electrical",
"unit": "Ω",
"min": 12,
"typ": 17,
"max": 26,
"conditions": "TJ = 25°C, IGHx = –40 mA",
"source_page": 6,
"source": "datasheet"
},
{
"name": "GHx Pull-Down On Resistance",
"symbol": "RGHDN",
"kind": "electrical",
"unit": "Ω",
"min": 23,
"typ": 28,
"max": 33,
"conditions": "TJ = 25°C, IGHx = 40 mA, VBB = 10 V",
"source_page": 6,
"source": "datasheet"
},
{
"name": "GHx Output Voltage High (Off)",
"symbol": "VGHH",
"kind": "electrical",
"unit": "V",
"min": -0.2,
"typ": null,
"max": null,
"conditions": "–10 µA < IGH < 10 µA (printed VBB – 0.2 min)",
"source_page": 6,
"source": "datasheet"
},
{
"name": "GHx Output Voltage Low (Active)",
"symbol": "VGHL",
"kind": "electrical",
"unit": "V",
"min": 0.9,
"typ": null,
"max": 2.6,
"conditions": "IGH = 10 mA, VBB = 14.5 V",
"source_page": 6,
"source": "datasheet"
},
{
"name": "GLx Pull-Up On Resistance",
"symbol": "RGLUP",
"kind": "electrical",
"unit": "Ω",
"min": 17,
"typ": 24,
"max": 31,
"conditions": "TJ = 25°C, IGLx = –40 mA, VBB = 10 V",
"source_page": 6,
"source": "datasheet"
},
{
"name": "GLx Pull-Down On Resistance",
"symbol": "RGLDN",
"kind": "electrical",
"unit": "Ω",
"min": 15,
"typ": 20,
"max": 25,
"conditions": "TJ = 25°C, IGLx = 40 mA",
"source_page": 6,
"source": "datasheet"
},
{
"name": "GLx Pull-Down On Resistance (150°C)",
"symbol": "RGLDN",
"kind": "electrical",
"unit": "Ω",
"min": 30,
"typ": 40,
"max": 50,
"conditions": "TJ = 150°C, IGLx = 40 mA",
"source_page": 6,
"source": "datasheet"
},
{
"name": "GLx Output Voltage High (Active)",
"symbol": "VGLH",
"kind": "electrical",
"unit": "V",
"min": 10.7,
"typ": null,
"max": 13.5,
"conditions": "IGL = –10 mA, VBB = 14.5 V",
"source_page": 6,
"source": "datasheet"
},
{
"name": "GLx Output Voltage Low (Off)",
"symbol": "VGLL",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 0.2,
"conditions": "–10 µA < IGL < 10 µA",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Turn-Off Propagation Delay",
"symbol": "tP(off)",
"kind": "timing",
"unit": "ns",
"min": 200,
"typ": 250,
"max": 400,
"conditions": "Input change to unloaded gate output change; Direct mode",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Turn-On Propagation Delay",
"symbol": "tP(on)",
"kind": "timing",
"unit": "ns",
"min": 200,
"typ": 250,
"max": 400,
"conditions": "Input change to unloaded gate output change; Direct mode",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Dead Time",
"symbol": "tDEAD",
"kind": "timing",
"unit": "µs",
"min": 0.9,
"typ": 1,
"max": 1.1,
"conditions": "Default power-up value",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Input Low Voltage",
"symbol": "VIL",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 0.8,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Input High Voltage",
"symbol": "VIH",
"kind": "electrical",
"unit": "V",
"min": 2,
"typ": null,
"max": null,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Input Hysteresis",
"symbol": "VIhys",
"kind": "electrical",
"unit": "mV",
"min": 150,
"typ": 550,
"max": null,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Input Pull-Down Resistor (PWM, SDI, SCK)",
"symbol": "RPD",
"kind": "electrical",
"unit": "kΩ",
"min": 30,
"typ": 50,
"max": 70,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Input Pull-Up Resistor (STRn)",
"symbol": "RPU",
"kind": "electrical",
"unit": "kΩ",
"min": 30,
"typ": 50,
"max": 70,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Output Low Voltage (SDO)",
"symbol": "VOL",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 0.2,
"max": 0.4,
"conditions": "IOL = 1 mA",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Output High Voltage (SDO)",
"symbol": "VOH",
"kind": "electrical",
"unit": "V",
"min": 2.4,
"typ": 3,
"max": null,
"conditions": "IOL = 1 mA",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Output Leakage (SDO)",
"symbol": "IO",
"kind": "electrical",
"unit": "µA",
"min": -1,
"typ": null,
"max": 1,
"conditions": "0 V < VO < 3.3 V, STRn = 1",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Output Low Voltage (FAULTn, SPD)",
"symbol": "VOL",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 0.2,
"max": 0.4,
"conditions": "IOL = 4 mA, FAULTn active",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Output Current Limit (FAULTn, SPD)",
"symbol": "IOLIM",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 10,
"max": 15,
"conditions": "0 V < VO < 15 V, FAULTn active",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Output Current Limit (FAULTn, SPD) high voltage",
"symbol": "IOLIM",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": null,
"max": 2,
"conditions": "15 V ≤ VO < 50 V, FAULTn active",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Output Leakage (FAULTn, SPD)",
"symbol": "IO",
"kind": "electrical",
"unit": "µA",
"min": -1,
"typ": null,
"max": 1,
"conditions": "0 V < VO < 12 V, FAULTn inactive",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Output Leakage (FAULTn, SPD) high voltage",
"symbol": "IO",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": null,
"max": 1.7,
"conditions": "12 V ≤ VO < 50 V, FAULTn inactive",
"source_page": 7,
"source": "datasheet"
},
{
"name": "PWM Duty Detect Frequency Range",
"symbol": "fPWD",
"kind": "electrical",
"unit": "Hz",
"min": 5,
"typ": null,
"max": 1000,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "PWM Brake Time",
"symbol": "tBRK",
"kind": "timing",
"unit": "µs",
"min": 500,
"typ": null,
"max": null,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Clock High Time",
"symbol": "tSCKH",
"kind": "timing",
"unit": "ns",
"min": 50,
"typ": null,
"max": null,
"conditions": "A in Figure 1",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Clock Low Time",
"symbol": "tSCKL",
"kind": "timing",
"unit": "ns",
"min": 50,
"typ": null,
"max": null,
"conditions": "B in Figure 1",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Strobe Lead Time",
"symbol": "tSTLD",
"kind": "timing",
"unit": "ns",
"min": 30,
"typ": null,
"max": null,
"conditions": "C in Figure 1",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Strobe Lag Time",
"symbol": "tSTLG",
"kind": "timing",
"unit": "ns",
"min": 30,
"typ": null,
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