component
TMC2226-SA-T
Public Made by Adomby adom
TRINAMIC Motion Control GmbH Stepper Motor Driver, HTSSOP-28. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"schema_version": 1,
"type": "component",
"slug": "tmc2226-sa-t",
"title": "TMC2226-SA-T",
"brief": "TRINAMIC Motion Control GmbH Stepper Motor Driver, HTSSOP-28. 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",
"tmc2226-sa-t",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "TMC2226-SA-T",
"manufacturer": "TRINAMIC Motion Control GmbH",
"package": "HTSSOP-28",
"pin_count": 29,
"category": "Motor Driver ICs",
"subcategory": "Stepper Motor Driver",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588893120780251136",
"parts": {
"symbol": "tmc2226-sa-t.kicad_sym",
"footprint": "tmc2226-sa-t.kicad_mod",
"model_3d": "tmc2226-sa-t-hero.glb",
"model_3d_plain": "tmc2226-sa-t-etched.glb",
"model_3d_step": "tmc2226-sa-t-etched.step",
"model_3d_step_plain": "tmc2226-sa-t.step",
"lbr": "tmc2226-sa-t.lbr"
},
"distributor_links": {
"lcsc": "C705366",
"digikey": "175-TMC2226-SA-TTR-ND"
},
"distributor_check": {
"checked_at": "2026-10-17T14:10:57Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "175-TMC2226-SA-TTR-ND",
"status": "found"
},
"mouser": {
"pn": null,
"status": "quota"
}
},
"pins": [
{
"number": "1",
"name": "OB1",
"type": "output",
"description": "Motor coil B output 1 of the full bridge B, driving the stepper motor coil."
},
{
"number": "2",
"name": "BRB",
"type": "passive",
"description": "Sense resistor connection for coil B; place the sense resistor to GND near the pin, or tie to GND when using the internal sense resistor."
},
{
"number": "3",
"name": "VS",
"type": "power_in",
"description": "Motor supply voltage; provide filtering capacitance near the pin with the shortest possible loop to the GND pad."
},
{
"number": "4",
"name": "OB2",
"type": "output",
"description": "Motor coil B output 2 of the full bridge B, driving the stepper motor coil."
},
{
"number": "5",
"name": "ENN",
"type": "input",
"description": "Enable not input; the power stage is switched off (all motor outputs floating) when this pin is driven high."
},
{
"number": "6",
"name": "GND",
"type": "power_in",
"description": "Ground; connect to the GND plane near the pin."
},
{
"number": "7",
"name": "CPO",
"type": "passive",
"description": "Charge pump capacitor output; tie to CPI using a 22nF 50V capacitor."
},
{
"number": "8",
"name": "CPI",
"type": "passive",
"description": "Charge pump capacitor input; tie to CPO using a 22nF 50V capacitor."
},
{
"number": "9",
"name": "VCP",
"type": "passive",
"description": "Charge pump voltage; tie to VS using a 100nF capacitor."
},
{
"number": "10",
"name": "SPREAD",
"type": "input",
"description": "Chopper mode selection: Low selects StealthChop and High selects SpreadCycle; internal pull-down, may be left unconnected."
},
{
"number": "11",
"name": "5VOUT",
"type": "power_out",
"description": "Output of the internal 5V regulator; attach a 2.2µF to 4.7µF low-ESR ceramic capacitor to GND near the pin."
},
{
"number": "12",
"name": "MS1_AD0",
"type": "input",
"description": "Microstep resolution configuration (MS1) and UART address bit 0 (AD0), with internal pull-down; MS2 and MS1 select 8, 32, 64 or 16 microsteps."
},
{
"number": "13",
"name": "-",
"type": "unconnected",
"description": "Unused pin; may be connected to GND for better PCB routing."
},
{
"number": "14",
"name": "MS2_AD1",
"type": "input",
"description": "Microstep resolution configuration (MS2) and UART address bit 1 (AD1), with internal pull-down."
},
{
"number": "15",
"name": "DIAG",
"type": "output",
"description": "Diagnostic and StallGuard output; goes high upon stall detection or driver error and is reset by ENN going high."
},
{
"number": "16",
"name": "INDEX",
"type": "output",
"description": "Configurable index output that provides the index pulse (one pulse per electrical rotation)."
},
{
"number": "17",
"name": "CLK",
"type": "input",
"description": "Clock input; tie to GND using a short wire for the internal clock, or supply an external clock."
},
{
"number": "18",
"name": "PDN_UART",
"type": "bidirectional",
"description": "Power down not control input (low enables automatic standstill current reduction) and optional UART input/output; power down function can be disabled in UART mode."
},
{
"number": "19",
"name": "VCC_IO",
"type": "power_in",
"description": "I/O supply voltage for all digital pins, 3.3V to 5V."
},
{
"number": "20",
"name": "STEP",
"type": "input",
"description": "STEP input for the step signal of the step and direction interface."
},
{
"number": "21",
"name": "VREF",
"type": "power_in",
"description": "Analog reference voltage for current scaling, or reference current for use of internal sense resistors (optional mode)."
},
{
"number": "22",
"name": "GND",
"type": "power_in",
"description": "Ground; connect to the GND plane near the pin."
},
{
"number": "23",
"name": "DIR",
"type": "input",
"description": "DIR input for the direction signal, with internal pull-down resistor."
},
{
"number": "24",
"name": "STDBY",
"type": "input",
"description": "Standby input; pull up to disable the internal 5V regulator and enter low power standby, with 100kOhm pulldown (may be left unconnected)."
},
{
"number": "25",
"name": "OA2",
"type": "output",
"description": "Motor coil A output 2 of the full bridge A, driving the stepper motor coil."
},
{
"number": "26",
"name": "VS",
"type": "power_in",
"description": "Motor supply voltage; provide filtering capacitance near the pin with the shortest possible loop to GND pad."
},
{
"number": "27",
"name": "BRA",
"type": "passive",
"description": "Sense resistor connection for coil A; place the sense resistor to GND near the pin, or tie to GND when using the internal sense resistor."
},
{
"number": "28",
"name": "OA1",
"type": "output",
"description": "Motor coil A output 1 of the full bridge A, driving the stepper motor coil."
},
{
"number": "29",
"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-haiku-5-5",
"primary_mode": "text",
"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: The exposed die pad (labelled Pad=GND in the Figure 2.1 pinout) is not given a pin number in the dat; The datasheet gives no KiCad electrical type for CPO, CPI, VCP, VREF, BRA and BRB. 'passive' was cho; Pin 13 is printed as '-' with the note 'unused' in the signal table, so it is listed with number 13 ",
"exposed pad 29 added from the footprint"
],
"pages_sent": 18,
"cost_usd": 0.1163,
"at": "2026-10-17T14:08:43"
},
"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588893120780251136",
"pages": 83,
"sha256": "4e87de84905405dd",
"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": "tmc2226-sa-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": "2026-10-17",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "tmc2226-sa-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": "3da0560b7214712f78e2a3a3aef50b86e01b074378e48ac248235679e1d66d70",
"checked": "2026-10-17",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "TRINAMIC Motion Control GmbH",
"Package": "HTSSOP-28",
"Category": "Motor Driver ICs",
"Pins": "29"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "4e87de84905405ddf2bc29ec2438ef57a7869ccc502218d3e7bba704a1dc0fed",
"rows": [
{
"name": "Supply voltage operating with inductive load",
"symbol": "VVS",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.5,
"typ": null,
"max": 32,
"conditions": "",
"source_page": 72,
"source": "datasheet"
},
{
"name": "Supply and bridge voltage max.",
"symbol": "VVMAX",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 33,
"conditions": "",
"source_page": 72,
"source": "datasheet"
},
{
"name": "I/O supply voltage",
"symbol": "VVIO",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.5,
"typ": null,
"max": 5.5,
"conditions": "",
"source_page": 72,
"source": "datasheet"
},
{
"name": "digital supply voltage (when using external supply)",
"symbol": "V5VOUT",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.5,
"typ": null,
"max": 5.5,
"conditions": "",
"source_page": 72,
"source": "datasheet"
},
{
"name": "Logic input voltage",
"symbol": "VI",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.5,
"typ": null,
"max": null,
"conditions": "",
"source_page": 72,
"source": "datasheet"
},
{
"name": "VREF input voltage",
"symbol": "VVREF",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.5,
"typ": null,
"max": 6,
"conditions": "Do not exceed both VCC_IO and 5VOUT by more than 10%, as this enables a test mode",
"source_page": 72,
"source": "datasheet"
},
{
"name": "Maximum current to / from digital pins and analog low voltage I/Os",
"symbol": "IIO",
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"source_page": 72,
"source": "datasheet"
},
{
"name": "5V regulator output current (internal plus external load)",
"symbol": "I5VOUT",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 25,
"conditions": "",
"source_page": 72,
"source": "datasheet"
},
{
"name": "5V regulator continuous power dissipation",
"symbol": "P5VOUT",
"kind": "absolute_maximum",
"unit": "W",
"min": null,
"typ": null,
"max": 0.5,
"conditions": "",
"source_page": 72,
"source": "datasheet"
},
{
"name": "Power bridge repetitive output current",
"symbol": "IOx",
"kind": "absolute_maximum",
"unit": "A",
"min": null,
"typ": null,
"max": 3,
"conditions": "",
"source_page": 72,
"source": "datasheet"
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{
"name": "Junction temperature",
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"typ": null,
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"source_page": 72,
"source": "datasheet"
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{
"name": "Storage temperature",
"symbol": "TSTG",
"kind": "absolute_maximum",
"unit": "°C",
"min": -55,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 72,
"source": "datasheet"
},
{
"name": "ESD-Protection for interface pins in application (HBM)",
"symbol": "VESDAP",
"kind": "absolute_maximum",
"unit": "kV",
"min": null,
"typ": null,
"max": 4,
"conditions": "Human body model, HBM",
"source_page": 72,
"source": "datasheet"
},
{
"name": "ESD-Protection for handling (HBM)",
"symbol": "VESD",
"kind": "absolute_maximum",
"unit": "kV",
"min": null,
"typ": null,
"max": 1,
"conditions": "Human body model, HBM",
"source_page": 72,
"source": "datasheet"
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{
"name": "Junction temperature",
"symbol": "TJ",
"kind": "recommended_operating",
"unit": "°C",
"min": -40,
"typ": null,
"max": 125,
"conditions": "",
"source_page": 72,
"source": "datasheet"
},
{
"name": "Supply voltage (using internal +5V regulator)",
"symbol": "VVS",
"kind": "recommended_operating",
"unit": "V",
"min": 5.5,
"typ": null,
"max": 29,
"conditions": "",
"source_page": 72,
"source": "datasheet"
},
{
"name": "Supply voltage (using internal +5V regulator) for OTP programming",
"symbol": "VVS",
"kind": "recommended_operating",
"unit": "V",
"min": 6,
"typ": null,
"max": 29,
"conditions": "for OTP programming",
"source_page": 72,
"source": "datasheet"
},
{
"name": "Supply voltage (internal +5V regulator bridged)",
"symbol": "VVS",
"kind": "recommended_operating",
"unit": "V",
"min": 4.7,
"typ": null,
"max": 5.4,
"conditions": "V5VOUT=VVS",
"source_page": 72,
"source": "datasheet"
},
{
"name": "I/O supply voltage",
"symbol": "VVIO",
"kind": "recommended_operating",
"unit": "V",
"min": 3,
"typ": null,
"max": 5.25,
"conditions": "",
"source_page": 72,
"source": "datasheet"
},
{
"name": "I/O supply voltage during standby",
"symbol": "VVIO",
"kind": "recommended_operating",
"unit": "V",
"min": 1.5,
"typ": null,
"max": 5.25,
"conditions": "",
"source_page": 72,
"source": "datasheet"
},
{
"name": "VCC voltage when using optional external source",
"symbol": "VVCC",
"kind": "recommended_operating",
"unit": "V",
"min": 4.6,
"typ": null,
"max": 5.25,
"conditions": "supplies digital logic and charge pump",
"source_page": 72,
"source": "datasheet"
},
{
"name": "RMS motor coil current per coil (value for design guideline)",
"symbol": "IRMS",
"kind": "recommended_operating",
"unit": "A",
"min": null,
"typ": null,
"max": 1.6,
"conditions": "value for design guideline",
"source_page": 72,
"source": "datasheet"
},
{
"name": "RMS motor coil current per coil with duty cycle limit (value for design guideline)",
"symbol": "IRMS",
"kind": "recommended_operating",
"unit": "A",
"min": null,
"typ": null,
"max": 2,
"conditions": "duty cycle limit, e.g. 1s on, 1s standby",
"source_page": 72,
"source": "datasheet"
},
{
"name": "Peak output current per motor coil output (sine wave peak)",
"symbol": "IOx",
"kind": "recommended_operating",
"unit": "A",
"min": null,
"typ": null,
"max": 2.8,
"conditions": "using external or internal current sensing",
"source_page": 72,
"source": "datasheet"
},
{
"name": "Total supply current, standby",
"symbol": "IS",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 160,
"max": 300,
"conditions": "ENN=0V, VREF=0V; VVS=24.0V",
"source_page": 73,
"source": "datasheet"
},
{
"name": "Total supply current, driver disabled",
"symbol": "IVS",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 7,
"max": 10,
"conditions": "fCLK=12MHz; VVS=24.0V",
"source_page": 73,
"source": "datasheet"
},
{
"name": "IO supply current (typ. at 3.3V)",
"symbol": "IVIO",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 15,
"max": 30,
"conditions": "no load on outputs, inputs at VIO or GND; excludes pull-down resistors",
"source_page": 73,
"source": "datasheet"
},
{
"name": "RDSON lowside MOSFET",
"symbol": "RONL",
"kind": "electrical",
"unit": "Ω",
"min": null,
"typ": 0.17,
"max": 0.21,
"conditions": "measure at 200mA, 25°C, static state; VVS=24.0V",
"source_page": 73,
"source": "datasheet"
},
{
"name": "RDSON highside MOSFET",
"symbol": "RONH",
"kind": "electrical",
"unit": "Ω",
"min": null,
"typ": 0.17,
"max": 0.21,
"conditions": "measure at 200mA, 25°C, static state; VVS=24.0V",
"source_page": 73,
"source": "datasheet"
},
{
"name": "slope, MOSFET turning on",
"symbol": "tSLPON",
"kind": "timing",
"unit": "ns",
"min": 35,
"typ": 60,
"max": 150,
"conditions": "measured at 700mA load current (resistive load); VVS=24.0V",
"source_page": 73,
"source": "datasheet"
},
{
"name": "slope, MOSFET turning off",
"symbol": "tSLPOFF",
"kind": "timing",
"unit": "ns",
"min": 35,
"typ": 60,
"max": 150,
"conditions": "measured at 700mA load current (resistive load); VVS=24.0V",
"source_page": 73,
"source": "datasheet"
},
{
"name": "Current sourcing, driver off",
"symbol": "IOIDLE",
"kind": "electrical",
"unit": "µA",
"min": 120,
"typ": 180,
"max": 250,
"conditions": "OXX pulled to GND",
"source_page": 73,
"source": "datasheet"
},
{
"name": "Charge pump output voltage",
"symbol": "VVCP-VVS",
"kind": "electrical",
"unit": "V",
"min": 4,
"typ": null,
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