component
A4986SESTR-T
Public Made by Adomby adom
Allegro MicroSystems, LLC New Arrivals, QFN-24(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299
{
"slug": "a4986sestr-t",
"version": "0.1.0",
"type": "component",
"description": "Allegro MicroSystems, LLC New Arrivals, QFN-24(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"others",
"a4986sestr-t",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"a4986sestr-t.kicad_sym",
"a4986sestr-t.kicad_mod",
"a4986sestr-t.glb",
"a4986sestr-t.step",
"a4986sestr-t.lbr",
"docs/hero.png",
"docs/a4986sestr-t-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"a4986sestr-t-hero.glb",
"a4986sestr-t-hero.overlay.json",
"a4986sestr-t-etched.glb"
],
"component": {
"mpn": "A4986SESTR-T",
"manufacturer": "Allegro MicroSystems, LLC",
"package": "QFN-24(4x4)",
"pin_count": 25,
"category": "Others",
"subcategory": "New Arrivals",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/65afd0126d61623159880bd010d17843.pdf",
"parts": {
"symbol": "a4986sestr-t.kicad_sym",
"footprint": "a4986sestr-t.kicad_mod",
"model_3d": "a4986sestr-t-hero.glb",
"model_3d_plain": "a4986sestr-t-etched.glb",
"model_3d_step": "a4986sestr-t-etched.step",
"model_3d_step_plain": "a4986sestr-t.step",
"lbr": "a4986sestr-t.lbr"
},
"distributor_links": {
"lcsc": "C7208645",
"digikey": "620-A4986SESTR-TTR-ND",
"mouser": "250-A4986SESTR-T"
},
"distributor_check": {
"checked_at": "2026-11-02T19:37:39Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "620-A4986SESTR-TTR-ND",
"status": "found",
"lifecycle": "Active"
},
"mouser": {
"pn": "250-A4986SESTR-T",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "OUT2B",
"type": "output",
"description": "DMOS full-bridge 2 output B, rated up to 35 V and ±2 A."
},
{
"number": "2",
"name": "PH2",
"type": "input",
"description": "Logic input setting the phase (current direction) of bridge 2, with logic levels of VDD×0.7 high and VDD×0.3 low."
},
{
"number": "3",
"name": "GND",
"type": "power_in",
"description": "Ground; must be tied together externally with the other GND pin by connecting to the PAD ground plane under the device."
},
{
"number": "4",
"name": "CP1",
"type": "passive",
"description": "Charge pump capacitor terminal; connect a 0.1 µF ceramic capacitor between CP1 and CP2."
},
{
"number": "5",
"name": "CP2",
"type": "passive",
"description": "Charge pump capacitor terminal; connect a 0.1 µF ceramic capacitor between CP1 and CP2."
},
{
"number": "6",
"name": "VCP",
"type": "passive",
"description": "Reservoir capacitor terminal; a 0.1 µF ceramic capacitor is required between VCP and VBB for the high-side FET gate supply."
},
{
"number": "7",
"name": "VREG",
"type": "power_out",
"description": "Regulator decoupling terminal with nominal 7 V output; must be decoupled with a 0.22 µF ceramic capacitor to ground."
},
{
"number": "8",
"name": "IN02",
"type": "input",
"description": "Logic input bit 0 of the bridge 2 current DAC, with an internal pull-down of typically 100 kΩ."
},
{
"number": "9",
"name": "IN12",
"type": "input",
"description": "Logic input bit 1 of the bridge 2 current DAC, with an internal pull-down of typically 50 kΩ."
},
{
"number": "10",
"name": "IN11",
"type": "input",
"description": "Logic input bit 1 of the bridge 1 current DAC (2-bit DAC selects 33%, 66%, 100% of peak current or output disable)."
},
{
"number": "11",
"name": "ROSC",
"type": "input",
"description": "Timing set for fixed off-time: tie to VDD or ground for 30 µs, or connect a resistor to ground for tOFF ≈ ROSC/825 (µs)."
},
{
"number": "12",
"name": "SLEEP",
"type": "input",
"description": "Active-low logic input; a logic low puts the device into Sleep mode (< 10 µA), and a 1 ms delay is needed after wake-up before issuing commands."
},
{
"number": "13",
"name": "VDD",
"type": "power_in",
"description": "Logic supply, operating range 3.0 to 5.5 V."
},
{
"number": "14",
"name": "IN01",
"type": "input",
"description": "Logic input bit 0 of the bridge 1 current DAC."
},
{
"number": "15",
"name": "REF",
"type": "input",
"description": "Gm reference voltage input (VREF 0 to 4 V) setting ITripMAX = VREF/(8×RS)."
},
{
"number": "16",
"name": "GND",
"type": "power_in",
"description": "Ground; must be tied together externally with the other GND pin by connecting to the PAD ground plane under the device."
},
{
"number": "17",
"name": "PH1",
"type": "input",
"description": "Logic input setting the phase (current direction) of bridge 1."
},
{
"number": "18",
"name": "OUT1B",
"type": "output",
"description": "DMOS full-bridge 1 output B, rated up to 35 V and ±2 A."
},
{
"number": "19",
"name": "VBB1",
"type": "power_in",
"description": "Load supply for bridge 1, operating range 8 to 35 V."
},
{
"number": "20",
"name": "SENSE1",
"type": "passive",
"description": "Sense resistor terminal for bridge 1; voltage must not exceed the ±0.5 V maximum rating."
},
{
"number": "21",
"name": "OUT1A",
"type": "output",
"description": "DMOS full-bridge 1 output A, rated up to 35 V and ±2 A."
},
{
"number": "22",
"name": "OUT2A",
"type": "output",
"description": "DMOS full-bridge 2 output A, rated up to 35 V and ±2 A."
},
{
"number": "23",
"name": "SENSE2",
"type": "passive",
"description": "Sense resistor terminal for bridge 2; voltage must not exceed the ±0.5 V maximum rating."
},
{
"number": "24",
"name": "VBB2",
"type": "power_in",
"description": "Load supply for bridge 2, operating range 8 to 35 V."
},
{
"number": "25",
"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": {
"factory": "2.0.0",
"extractor": "extract_pins 0.3",
"primary_model": "claude-sonnet-5-5",
"primary_mode": "text",
"consensus_model": "claude-opus-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: The exposed pad is labelled only 'PAD' in the terminal table with no pin number; the package drawing; The datasheet does not give electrical pin types. Types were inferred from the descriptions (outputs",
"exposed pad 25 added from the footprint",
"dropped thermal pad ['EP'] absent from footprint"
],
"pages_sent": 17,
"cost_usd": 0.2356,
"at": "2026-11-02T19:37:03"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/65afd0126d61623159880bd010d17843.pdf",
"pages": 17,
"sha256": "ff5b906680415f46",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 25,
"described": 25,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "a4986sestr-t.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
4.0,
4.0,
0.77
],
"zmin_mm": 0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "096fc110543e6d324c5120c2d38e3dca87a389da9b6fac234f1fe40856295ef4",
"checked": "2026-11-02",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "a4986sestr-t-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
4.0,
4.0,
0.77
],
"zmin_mm": 0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "f3e422d25b62a5f94d2e8ed626877bc45ac271fa73c2f31e53b5a071421d5fc2",
"checked": "2026-11-02",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
}
}