component
AMT49100KJPTR-B-3
Public Made by Adomby adom
Allegro MicroSystems, LLC Gate Drivers, LQFP-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": "amt49100kjptr-b-3",
"title": "AMT49100KJPTR-B-3",
"brief": "Allegro MicroSystems, LLC Gate Drivers, LQFP-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",
"motor driver ics",
"amt49100kjptr-b-3",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "AMT49100KJPTR-B-3",
"manufacturer": "Allegro MicroSystems, LLC",
"package": "LQFP-48-EP(7x7)",
"pin_count": 49,
"category": "Motor Driver ICs",
"subcategory": "Gate Drivers",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/3b2d3a14a0fda25c3d654de945876595.pdf",
"parts": {
"symbol": "amt49100kjptr-b-3.kicad_sym",
"footprint": "amt49100kjptr-b-3.kicad_mod",
"model_3d": "amt49100kjptr-b-3-hero.glb",
"model_3d_plain": "amt49100kjptr-b-3-etched.glb",
"model_3d_step": "amt49100kjptr-b-3-etched.step",
"model_3d_step_plain": "amt49100kjptr-b-3.step",
"lbr": "amt49100kjptr-b-3.lbr"
},
"distributor_links": {
"lcsc": "C19762009",
"digikey": "620-AMT49100KJPTR-B-3-ND",
"mouser": "250-AMT49100KJPTRB3"
},
"distributor_check": {
"checked_at": "2026-10-31T02:24:23Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "620-AMT49100KJPTR-B-3-ND",
"status": "found",
"lifecycle": "Not For New Designs"
},
"mouser": {
"pn": "250-AMT49100KJPTRB3",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "LA",
"type": "input",
"description": "Logic input controlling the phase A low-side gate drive, selectable active high or low with pull-down/pull-up, battery-voltage compliant (up to 80 V)."
},
{
"number": "2",
"name": "HB",
"type": "input",
"description": "Logic input controlling the phase B high-side gate drive, selectable active high or low with pull-down/pull-up, battery-voltage compliant (up to 80 V)."
},
{
"number": "3",
"name": "LB",
"type": "input",
"description": "Logic input controlling the phase B low-side gate drive, selectable active high or low with pull-down/pull-up, battery-voltage compliant (up to 80 V)."
},
{
"number": "4",
"name": "HC",
"type": "input",
"description": "Logic input controlling the phase C high-side gate drive, selectable active high or low with pull-down/pull-up, battery-voltage compliant (up to 80 V)."
},
{
"number": "5",
"name": "LC",
"type": "input",
"description": "Logic input controlling the phase C low-side gate drive, selectable active high or low with pull-down/pull-up, battery-voltage compliant (up to 80 V)."
},
{
"number": "6",
"name": "DIAG",
"type": "output",
"description": "Programmable diagnostic output providing fault flag (default), pulsed fault flag, temperature, or internal timer; rated -0.3 to 80 V."
},
{
"number": "7",
"name": "SAL",
"type": "output",
"description": "Logic-level output showing the phase A state from a programmable threshold comparator."
},
{
"number": "8",
"name": "SBL",
"type": "output",
"description": "Logic-level output showing the phase B state from a programmable threshold comparator."
},
{
"number": "9",
"name": "SCL",
"type": "output",
"description": "Logic-level output showing the phase C state from a programmable threshold comparator."
},
{
"number": "10",
"name": "SDO",
"type": "tri_state",
"description": "Serial data output, high impedance when STRn is high, outputs the status register fault flag (bit 15) as soon as STRn goes low."
},
{
"number": "11",
"name": "SDI",
"type": "input",
"description": "Serial data logic input with pull-down, 16-bit word MSB first."
},
{
"number": "12",
"name": "SCK",
"type": "input",
"description": "Serial clock logic input with pull-down, data latched on rising edge, 16 rising edges per write, must be held high when STRn changes."
},
{
"number": "13",
"name": "STRn",
"type": "input",
"description": "Serial strobe (chip select) input with pull-up; when high, SCK and SDI activity is ignored and SDO is high impedance."
},
{
"number": "14",
"name": "CS1P",
"type": "input",
"description": "Current sense amplifier 1 positive input, rated -4 to 6.5 V."
},
{
"number": "15",
"name": "CS1M",
"type": "input",
"description": "Current sense amplifier 1 negative input, rated -4 to 6.5 V."
},
{
"number": "16",
"name": "CS1O",
"type": "output",
"description": "Current sense amplifier 1 output, rated -0.3 to 6 V."
},
{
"number": "17",
"name": "CS2P",
"type": "input",
"description": "Current sense amplifier 2 positive input, rated -4 to 6.5 V."
},
{
"number": "18",
"name": "CS2M",
"type": "input",
"description": "Current sense amplifier 2 negative input, rated -4 to 6.5 V."
},
{
"number": "19",
"name": "CS2O",
"type": "output",
"description": "Current sense amplifier 2 output, rated -0.3 to 6 V."
},
{
"number": "20",
"name": "CS3P",
"type": "input",
"description": "Current sense amplifier 3 positive input, rated -4 to 6.5 V."
},
{
"number": "21",
"name": "CS3M",
"type": "input",
"description": "Current sense amplifier 3 negative input, rated -4 to 6.5 V."
},
{
"number": "22",
"name": "CS3O",
"type": "output",
"description": "Current sense amplifier 3 output, rated -0.3 to 6 V."
},
{
"number": "23",
"name": "LSSC",
"type": "passive",
"description": "Low-side source return for phase C, connected to the low-side MOSFET source through a low-impedance track for gate discharge."
},
{
"number": "24",
"name": "GLC",
"type": "output",
"description": "Low-side gate drive output for the phase C external N-channel MOSFET."
},
{
"number": "25",
"name": "CC",
"type": "passive",
"description": "Phase C bootstrap capacitor high-side connection and positive supply for the high-side gate driver."
},
{
"number": "26",
"name": "SC",
"type": "passive",
"description": "Phase C load connection sensing switched load voltage, negative side of the bootstrap capacitor and floating high-side driver supply return."
},
{
"number": "27",
"name": "GHC",
"type": "output",
"description": "High-side gate drive output for the phase C external N-channel MOSFET."
},
{
"number": "28",
"name": "LSSB",
"type": "passive",
"description": "Low-side source return for phase B, connected to the low-side MOSFET source through a low-impedance track for gate discharge."
},
{
"number": "29",
"name": "GLB",
"type": "output",
"description": "Low-side gate drive output for the phase B external N-channel MOSFET."
},
{
"number": "30",
"name": "CB",
"type": "passive",
"description": "Phase B bootstrap capacitor high-side connection and positive supply for the high-side gate driver."
},
{
"number": "31",
"name": "SB",
"type": "passive",
"description": "Phase B load connection sensing switched load voltage, negative side of the bootstrap capacitor and floating high-side driver supply return."
},
{
"number": "32",
"name": "GHB",
"type": "output",
"description": "High-side gate drive output for the phase B external N-channel MOSFET."
},
{
"number": "33",
"name": "LSSA",
"type": "passive",
"description": "Low-side source return for phase A, connected to the low-side MOSFET source through a low-impedance track for gate discharge."
},
{
"number": "34",
"name": "GLA",
"type": "output",
"description": "Low-side gate drive output for the phase A external N-channel MOSFET."
},
{
"number": "35",
"name": "CA",
"type": "passive",
"description": "Phase A bootstrap capacitor high-side connection and positive supply for the high-side gate driver."
},
{
"number": "36",
"name": "SA",
"type": "passive",
"description": "Phase A load connection sensing switched load voltage, negative side of the bootstrap capacitor and floating high-side driver supply return."
},
{
"number": "37",
"name": "GHA",
"type": "output",
"description": "High-side gate drive output for the phase A external N-channel MOSFET."
},
{
"number": "38",
"name": "VREG",
"type": "power_out",
"description": "Regulated gate drive supply, nominally 12 V, from the buck regulator or an external supply, requires at least 10 µF ceramic capacitor."
},
{
"number": "39",
"name": "GND",
"type": "power_in",
"description": "Ground; both GND terminals must be connected together at the device."
},
{
"number": "40",
"name": "GND",
"type": "power_in",
"description": "Ground; both GND terminals must be connected together at the device."
},
{
"number": "41",
"name": "CP2",
"type": "passive",
"description": "Charge pump capacitor terminal, connect at least 1 µF ceramic capacitor to CP1."
},
{
"number": "42",
"name": "CP1",
"type": "passive",
"description": "Charge pump capacitor terminal, connect at least 1 µF ceramic capacitor to CP2."
},
{
"number": "43",
"name": "VBRG",
"type": "input",
"description": "Sense input to the top of the external MOSFET bridge and reference for the charge pump and NVM programming; needs at least 100 nF to GND, operating 4.5 to 80 V."
},
{
"number": "44",
"name": "VBB",
"type": "power_in",
"description": "Main power supply of 10 to 80 V via reverse-voltage protection, decoupled with ceramic capacitors close to the pin."
},
{
"number": "45",
"name": "HA",
"type": "input",
"description": "Logic input controlling the phase A high-side gate drive, selectable active high or low with pull-down/pull-up, battery-voltage compliant (up to 80 V)."
},
{
"number": "46",
"name": "ENABLE",
"type": "input",
"description": "Disables all gate drive outputs when pulled low in direct mode or after a timeout in watchdog mode; can be pulled to VBB."
},
{
"number": "47",
"name": "RESETn",
"type": "input",
"description": "Resets faults when pulsed low and forces sleep when held low longer than tRSD; can be pulled to VBB."
},
{
"number": "48",
"name": "LX",
"type": "output",
"description": "Buck converter inductor switching node, rated -1 to 80 V."
},
{
"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-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 -B variant has the buck regulator disabled (external 12 V applied to VREG and VBB). LX, VREG dir; Pin types for bidirectional/analog pins (CA/CB/CC, Sx, LSSx, CP1/CP2) are inferred as passive since ",
"30/49 pins cited to the wrong page (name found elsewhere): ['6:DIAG@p18', '8:SBL@p18', '9:SCL@p18', '11:SDI@p18']"
],
"pages_sent": 10,
"cost_usd": 0.1966,
"at": "2026-10-31T02:24:12"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/3b2d3a14a0fda25c3d654de945876595.pdf",
"pages": 73,
"sha256": "b8b11ad0be155771",
"source_tier": "lcsc"
},
"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": "amt49100kjptr-b-3.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,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "f960910b71d80cee36ddda3bc3d76fc6db6e160cef6b65cca7a6d6ec3727584e",
"checked": "2026-10-31",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "amt49100kjptr-b-3-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,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "a50d3a0be135d64ab93e1d28d2ae323f3b5b15047c75b84f43b3ab1709371a3d",
"checked": "2026-10-31",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "Allegro MicroSystems, LLC",
"Package": "LQFP-48-EP(7x7)",
"Category": "Motor Driver ICs",
"Pins": "49"
},
"appearance": {
"contacts": {
"quote": "with exposed thermal pad. The package is lead (Pb) free with 100% matte-tin leadframe plating.",
"page": 1,
"doc": "ds.pdf",
"plating": "tin"
},
"version": 1,
"datasheet_sha256": "b8b11ad0be15577183bc557dd0677d14eea35c65b197239140f81b2a3f1dc3ba"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "b8b11ad0be15577183bc557dd0677d14eea35c65b197239140f81b2a3f1dc3ba",
"rows": [
{
"name": "Supply Voltage",
"symbol": "VBB",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 80,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Drive Regulator Terminal",
"symbol": "VREG",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 16,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Buck Switch Terminal",
"symbol": "VLX",
"kind": "absolute_maximum",
"unit": "V",
"min": -1,
"typ": null,
"max": 80,
"conditions": "LX",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Battery-Compliant Logic Input Terminals",
"symbol": "VIB",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 80,
"conditions": "HA, HB, HC, LA, LB, LC, ENABLE, RESETn",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Logic Input Terminals",
"symbol": "VI",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 6,
"conditions": "STRn, SCK, SDI",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Logic Output Terminals",
"symbol": "VO",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 6,
"conditions": "SDO, SAL, SBL, SCL",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Diagnostic Output Terminal",
"symbol": "VDIAG",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 80,
"conditions": "DIAG",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Sense Amplifier Inputs",
"symbol": "VCSI",
"kind": "absolute_maximum",
"unit": "V",
"min": -4,
"typ": null,
"max": 6.5,
"conditions": "CSxP, CSxM",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Sense Amplifier Output",
"symbol": "VCSO",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 6,
"conditions": "CSxO",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Bridge Drain Monitor Terminal",
"symbol": "VBRG",
"kind": "absolute_maximum",
"unit": "V",
"min": -5,
"typ": null,
"max": 85,
"conditions": "VBRG",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Ambient Operating Temperature Range",
"symbol": "TA",
"kind": "absolute_maximum",
"unit": "°C",
"min": -40,
"typ": null,
"max": 150,
"conditions": "Limited by power dissipation",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Maximum Continuous Junction Temperature",
"symbol": "TJ(max)",
"kind": "absolute_maximum",
"unit": "°C",
"min": null,
"typ": null,
"max": 165,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Transient Junction Temperature",
"symbol": "TJt",
"kind": "absolute_maximum",
"unit": "°C",
"min": null,
"typ": null,
"max": 180,
"conditions": "Over temperature event not exceeding 10 seconds, lifetime duration not exceeding 10 hours, guaranteed by design characterization.",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Storage Temperature Range",
"symbol": "Tstg",
"kind": "absolute_maximum",
"unit": "°C",
"min": -55,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "VBB Quiescent Current, Regulator Inactive",
"symbol": "IBBQ",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 1,
"max": 2,
"conditions": "VBB = VREG = 12 V, all gate drive outputs low",
"source_page": 6,
"source": "datasheet"
},
{
"name": "VBB Sleep Current",
"symbol": "IBBS",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": null,
"max": 10,
"conditions": "VRESETn ≤ 300 mV, sleep mode, VBB < 60 V",
"source_page": 6,
"source": "datasheet"
},
{
"name": "VBRG Operating Range",
"symbol": "VBRG",
"kind": "recommended_operating",
"unit": "V",
"min": 4.5,
"typ": 48,
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