UCC3626DWTR

{
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  "type": "component",
  "slug": "ucc3626dwtr",
  "title": "UCC3626DWTR",
  "brief": "Texas Instruments Brushless DC (BLDC) Motor Driver, SOIC-28-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
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    "motor driver ics",
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  "component": {
    "mpn": "UCC3626DWTR",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-28-300mil",
    "pin_count": 28,
    "category": "Motor Driver ICs",
    "subcategory": "Brushless DC (BLDC) Motor Driver",
    "datasheet": "https://www.ti.com/cn/lit/gpn/ucc2626",
    "parts": {
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      "lbr": "ucc3626dwtr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2150735",
      "digikey": "UCC3626DWTR-ND",
      "mouser": "595-UCC3626DWTR"
    },
    "distributor_check": {
      "checked_at": "2026-10-12T04:17:33Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "UCC3626DWTR-ND",
        "status": "found",
        "lifecycle": "Last Time Buy"
      },
      "mouser": {
        "pn": "595-UCC3626DWTR",
        "status": "found",
        "lifecycle": "End of Life"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Reference ground for all functions of the part; bypass and timing capacitors should be terminated as close as possible to this pin."
      },
      {
        "number": "2",
        "name": "VREF",
        "type": "power_out",
        "description": "5-V, 2% trimmed reference output with 5 mA of maximum available output current; bypass to ground with a ceramic capacitor of at least 0.1 µF."
      },
      {
        "number": "3",
        "name": "TACH_OUT",
        "type": "output",
        "description": "Output of a monostable triggered by a change in commutation state, giving a variable duty-cycle frequency output whose on time is set by C_TACH; the monostable can be retriggered if a commutation occurs during its on time."
      },
      {
        "number": "4",
        "name": "R_TACH",
        "type": "passive",
        "description": "Resistor from this pin to ground programs the current for both the oscillator and the tachometer; timing resistor values should be between 25 kΩ and 500 kΩ."
      },
      {
        "number": "5",
        "name": "C_TACH",
        "type": "passive",
        "description": "Timing capacitor from this pin to ground that sets the width of the TACH_OUT pulse, charged with a current set by the R_TACH resistor."
      },
      {
        "number": "6",
        "name": "CT",
        "type": "passive",
        "description": "Oscillator timing capacitor, used with R_TACH to set the oscillator frequency, normally connected to ground and alternately charged and discharged between 2.5 V and 7.5 V; timing capacitor values should be between 100 pF and 1 µF."
      },
      {
        "number": "7",
        "name": "SYNCH",
        "type": "input",
        "description": "Synchronizes the PWM oscillator to an external digital clock (minimum pulse width 500 ns, with a resistor equal to R_TACH in parallel with CT when used); it must be grounded when the feature is not used."
      },
      {
        "number": "8",
        "name": "DIR_OUT",
        "type": "output",
        "description": "Indicates the actual rotor direction decoded from HALLA, HALLB and HALLC, with polarity the same as DIR_IN while motoring."
      },
      {
        "number": "9",
        "name": "SNS_NI",
        "type": "input",
        "description": "Noninverting input to the current sense amplifier, which is configured for a gain of five; the input common-mode and supply limits are set by the device specification."
      },
      {
        "number": "10",
        "name": "SNS_I",
        "type": "input",
        "description": "Inverting input to the current sense amplifier, which is configured for a gain of five."
      },
      {
        "number": "11",
        "name": "IOUT",
        "type": "output",
        "description": "Output of the current sense and absolute value amplifiers, representing the absolute motor current with gain of five, usable to close a current control loop."
      },
      {
        "number": "12",
        "name": "OC_REF",
        "type": "input",
        "description": "Analog input that sets the trip voltage of the overcurrent comparator, whose common-mode input range is 0.0 V to 5.0 V."
      },
      {
        "number": "13",
        "name": "PWM_I",
        "type": "input",
        "description": "Inverting input to the PWM comparator, whose input common-mode range is 2.0 V to 8.0 V."
      },
      {
        "number": "14",
        "name": "PWM_NI",
        "type": "input",
        "description": "Noninverting input to the PWM comparator, whose input common-mode range is 2.0 V to 8.0 V."
      },
      {
        "number": "15",
        "name": "HALLA",
        "type": "input",
        "description": "Rotor position sensor input designed for signals 120° apart, to be externally pulled up to VREF or another appropriate supply, with high-level input voltage of 1.7 V to 2.1 V and hysteresis of 0.6 V to 1.0 V."
      },
      {
        "number": "16",
        "name": "HALLB",
        "type": "input",
        "description": "Rotor position sensor input designed for signals 120° apart, to be externally pulled up to VREF or another appropriate supply, with high-level input voltage of 1.7 V to 2.1 V and hysteresis of 0.6 V to 1.0 V."
      },
      {
        "number": "17",
        "name": "HALLC",
        "type": "input",
        "description": "Rotor position sensor input designed for signals 120° apart, to be externally pulled up to VREF or another appropriate supply, with high-level input voltage of 1.7 V to 2.1 V and hysteresis of 0.6 V to 1.0 V."
      },
      {
        "number": "18",
        "name": "COAST",
        "type": "input",
        "description": "Hysteretic comparator input that disables all outputs when the input is above 1.75 V (threshold 1.60 V to 2.00 V), useful for an overvoltage bus clamp in four-quadrant applications."
      },
      {
        "number": "19",
        "name": "BRAKE",
        "type": "input",
        "description": "Digital input that forces brake mode, turning off the high-side outputs AHI, BHI and CHI and turning on the low-side outputs ALOW, BLOW and CLOW, with the tachometer remaining operational."
      },
      {
        "number": "20",
        "name": "QUAD",
        "type": "input",
        "description": "Selects two-quadrant operation (QUAD = 0, only low-side devices controlled by the PWM comparator) or four-quadrant operation (QUAD = 1, both high- and low-side devices controlled)."
      },
      {
        "number": "21",
        "name": "DIR_IN",
        "type": "input",
        "description": "Digital input that determines the order in which the HALLA, HALLB and HALLC inputs are decoded, per Table 1."
      },
      {
        "number": "22",
        "name": "CLOW",
        "type": "output",
        "description": "Digital output controlling the low-side switch of the C phase in a three-phase inverter, decoded per Table 1."
      },
      {
        "number": "23",
        "name": "CHI",
        "type": "output",
        "description": "Digital output controlling the high-side switch of the C phase in a three-phase inverter, decoded per Table 1."
      },
      {
        "number": "24",
        "name": "BLOW",
        "type": "output",
        "description": "Digital output controlling the low-side switch of the B phase in a three-phase inverter, decoded per Table 1."
      },
      {
        "number": "25",
        "name": "BHI",
        "type": "output",
        "description": "Digital output controlling the high-side switch of the B phase in a three-phase inverter, decoded per Table 1."
      },
      {
        "number": "26",
        "name": "ALOW",
        "type": "output",
        "description": "Digital output controlling the low-side switch of the A phase in a three-phase inverter, decoded per Table 1."
      },
      {
        "number": "27",
        "name": "AHI",
        "type": "output",
        "description": "Digital output controlling the high-side switch of the A phase in a three-phase inverter, decoded per Table 1."
      },
      {
        "number": "28",
        "name": "VDD",
        "type": "power_in",
        "description": "Input supply connection; undervoltage lockout keeps the outputs off for inputs below 10.5 V, and the pin should be bypassed with at least a 0.1 µF ceramic capacitor."
      }
    ],
    "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: Package hint says SOIC-28-300mil; the datasheet gives the package as SOIC (DW), 28 pins, but does no; The block diagram pin numbers in the datasheet (e.g. SYNCH 11, OC_REF 9, SNS_I 3) do not match the p; The IOUT expression in the pin description is garbled in the extracted text. The description states ",
          "11/28 pins cited to the wrong page (name found elsewhere): ['13:PWM_I@p6', '17:HALLC@p6', '18:COAST@p6', '19:BRAKE@p6']"
        ],
        "pages_sent": 24,
        "cost_usd": 0.1143,
        "at": "2026-10-12T04:17:14"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/ucc2626",
        "pages": 24,
        "sha256": "a07898afc3861281",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 28,
        "described": 28,
        "cites_pages": true,
        "refuses_to_fabricate": true
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        "sha256": "b889a13dbe9ec59e79fa9f1b5118b00bfa54f9582392335ff3365b64afc264b1",
        "checked": "2026-10-12",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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        "sha256": "f0f22cf213ef683c8284f421dedb5ac81a2f9959e39446cb291c1793118f4da8",
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOIC-28-300mil",
      "Category": "Motor Driver ICs",
      "Pins": "28"
    }
  },
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  "discovery_pitch": "UCC3626DWTR (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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