RT9527GQW

{
  "schema_version": 1,
  "type": "component",
  "slug": "rt9527gqw",
  "title": "RT9527GQW",
  "brief": "Richtek Tech Battery Management, WDFN-8-EP(2x2). 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 management (pmic)",
    "rt9527gqw",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "RT9527GQW",
    "manufacturer": "Richtek Tech",
    "package": "WDFN-8-EP(2x2)",
    "pin_count": 9,
    "category": "Power Management (PMIC)",
    "subcategory": "Battery Management",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/32a376e339e02b3993dc2910aa734596.pdf",
    "parts": {
      "symbol": "rt9527gqw.kicad_sym",
      "footprint": "rt9527gqw.kicad_mod",
      "model_3d": "rt9527gqw-hero.glb",
      "model_3d_plain": "rt9527gqw-etched.glb",
      "model_3d_step": "rt9527gqw-etched.step",
      "model_3d_step_plain": "rt9527gqw.step",
      "lbr": "rt9527gqw.lbr"
    },
    "distributor_links": {
      "lcsc": "C3028965",
      "digikey": "RT9527GQWTR-ND",
      "mouser": "835-RT9527GQW"
    },
    "distributor_check": {
      "checked_at": "2026-10-26T18:40:06Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "RT9527GQWTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "835-RT9527GQW",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VIN",
        "type": "power_in",
        "description": "Supply voltage input that can withstand up to 28V (recommended operating range 4.4V to 6V)."
      },
      {
        "number": "2",
        "name": "PGOOD",
        "type": "output",
        "description": "Power good status output, active-low open-drain, asserts low when VIN is in the proper working range (abs max -0.3V to 28V)."
      },
      {
        "number": "3",
        "name": "CHG",
        "type": "output",
        "description": "Charger status output, active-low open-drain, low while charging and high impedance when termination current is reached or on timer fault (abs max -0.3V to 28V)."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground; shared with the exposed pad, which must be soldered to a large PCB ground plane for maximum power dissipation."
      },
      {
        "number": "5",
        "name": "ISET",
        "type": "passive",
        "description": "Charge current setting pin; a resistor RISET to GND sets the fast-charge current (ICHG = KCHG/RISET, 10mA to 600mA)."
      },
      {
        "number": "6",
        "name": "TIMER",
        "type": "passive",
        "description": "Safe-charge timer setting pin; a capacitor to GND sets fast-charge fault time tFCHG = 14400 x CTIMER (s, CTIMER in uF)."
      },
      {
        "number": "7",
        "name": "TS",
        "type": "input",
        "description": "Temperature sense input connected to the battery thermistor; charging pauses when the battery is too hot or too cold until it re-enters the valid range (abs max -0.3V to 28V)."
      },
      {
        "number": "8",
        "name": "BAT",
        "type": "power_out",
        "description": "Charge current output to the battery, regulated to 4.2V (4.158V to 4.242V)."
      },
      {
        "number": "9",
        "name": "GND",
        "type": "power_in",
        "description": "Exposed pad, ground; must be soldered to a large PCB ground plane for maximum power dissipation."
      }
    ],
    "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: Pin types for ISET and TIMER (passive) and BAT (power_out) are inferred from function descriptions; ; The exposed pad (pin 9) shares the GND name with pin 4; both are listed as separate entries as shown"
        ],
        "pages_sent": 19,
        "cost_usd": 0.1295,
        "at": "2026-10-26T18:39:31"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/32a376e339e02b3993dc2910aa734596.pdf",
        "pages": 19,
        "sha256": "e4797cc9f6516a05",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 9,
        "described": 9,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.02,
          2,
          0.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "a9b3a769ee6d3d4aafd59169e7ea9780b315bbdd5d1021d6488d9245631194c3",
        "checked": "2026-10-26",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Richtek Tech",
      "Package": "WDFN-8-EP(2x2)",
      "Category": "Power Management (PMIC)",
      "Pins": "9"
    },
    "characteristics": {
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      "rows": [
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          "name": "Supply Input Voltage (absolute max)",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 28,
          "conditions": "",
          "source_page": 4,
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        },
        {
          "name": "CHG, PGOOD, TS voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 28,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Other pins voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Power Dissipation",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 2.19,
          "conditions": "TA = 25°C, WDFN-8L 2x2",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Lead Temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "Soldering, 10 sec.",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Junction Temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
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        },
        {
          "name": "Storage Temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "ESD HBM",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "kV",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "HBM",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction to ambient",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 45.5,
          "max": null,
          "conditions": "WDFN-8L 2x2, JEDEC 51-7 four-layer board, TA = 25°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction to case",
          "symbol": "θJC",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 11.5,
          "max": null,
          "conditions": "WDFN-8L 2x2, at exposed pad",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Supply Input Voltage (recommended)",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 4.4,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Junction Temperature Range",
          "symbol": "TJ",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Ambient Temperature Range",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VIN Under Voltage Lockout Threshold",
          "symbol": "VUVLO",
          "kind": "electrical",
          "unit": "V",
          "min": 3.1,
          "typ": 3.3,
          "max": 3.5,
          "conditions": "VIN = 0V to 5V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VIN − BAT VOS Rising",
          "symbol": "VOS_H",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 100,
          "max": 200,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VIN − BAT VOS Falling",
          "symbol": "VOS_L",
          "kind": "electrical",
          "unit": "mV",
          "min": 10,
          "typ": 50,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VIN Standby Current",
          "symbol": "ISTANDBY",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 1,
          "max": 2,
          "conditions": "VBAT = 4.5V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "BAT Sleep Leakage Current",
          "symbol": "ISLEEP",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "VIN = 0V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Battery Voltage Regulation",
          "symbol": "VREG",
          "kind": "electrical",
          "unit": "V",
          "min": 4.158,
          "typ": 4.2,
          "max": 4.242,
          "conditions": "TJ = 0°C to 85°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Re-Charge Threshold",
          "symbol": "ΔVREGCHG",
          "kind": "electrical",
          "unit": "mV",
          "min": 60,
          "typ": 100,
          "max": 140,
          "conditions": "Battery Regulation − Recharge Level",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VIN Charge Setting Range",
          "symbol": "ICHG",
          "kind": "electrical",
          "unit": "mA",
          "min": 10,
          "typ": null,
          "max": 600,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Fast-Charge Current Factor 1",
          "symbol": "KCHG_F1",
          "kind": "electrical",
          "unit": "AΩ",
          "min": 510,
          "typ": 600,
          "max": 690,
          "conditions": "ICHG_F1 = KCHG_F1 / RISET, ICHG_F1 = 10mA to 50mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Fast-Charge Current Factor 2",
          "symbol": "KCHG_F2",
          "kind": "electrical",
          "unit": "AΩ",
          "min": 570,
          "typ": 600,
          "max": 630,
          "conditions": "ICHG_F2 = KCHG_F2 / RISET, ICHG_F2 = 50mA to 600mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Pre-Charge Current Factor",
          "symbol": "KCHG_P",
          "kind": "electrical",
          "unit": "AΩ",
          "min": 30,
          "typ": 60,
          "max": 90,
          "conditions": "ICHG_P = KCHG_P / RISET",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "BAT Pre-Charge Threshold",
          "symbol": "VPRECH",
          "kind": "electrical",
          "unit": "V",
          "min": 2.7,
          "typ": 2.8,
          "max": 2.9,
          "conditions": "VBAT Falling",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Termination Current Ratio",
          "symbol": "ITERMI",
          "kind": "electrical",
          "unit": "%",
          "min": 5,
          "typ": 10,
          "max": 15,
          "conditions": "VBAT > VPREC, ICHG < ITERMI, CHG = L to H",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Over Voltage Protection",
          "symbol": "VOVP",
          "kind": "electrical",
          "unit": "V",
          "min": 6.2,
          "typ": 6.5,
          "max": 6.8,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "ISET Pin Short Protection",
          "symbol": "RSHORT",
          "kind": "electrical",
          "unit": "Ω",
          "min": 375,
          "typ": 500,
          "max": 625,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Cold Temperature Fault Threshold Voltage",
          "symbol": "VCOLD",
          "kind": "electrical",
          "unit": "%VIN",
          "min": 60,
          "typ": 61,
          "max": 62,
          "conditions": "Rising Threshold",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Hot Temperature Fault Threshold Voltage",
          "symbol": "VHOT",
          "kind": "electrical",
          "unit": "%VIN",
          "min": 29,
          "typ": 30,
          "max": 31,
          "conditions": "Falling Threshold",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Pre-Charge Fault Time",
          "symbol": "tPCHG",
          "kind": "electrical",
          "unit": "s",
          "min": 1440,
          "typ": 1800,
          "max": 2160,
          "conditions": "CTIMER = 1μF (1 / 8 x tFCHG)",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Fast-Charge Fault Time",
          "symbol": "tFCHG",
          "kind": "electrical",
          "unit": "s",
          "min": 11520,
          "typ": 14400,
          "max": 17280,
          "conditions": "CTIMER = 1μF",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "VIN Under Voltage Lockout Hysteresis",
          "symbol": "ΔVUVLO",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 240,
          "max": null,
          "conditions": "VIN = 5V to 0V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VIN Power FET On-Resistance",
          "symbol": "RDS(ON)",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 0.8,
          "max": null,
          "conditions": "IBAT = 450mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Thermal Regulation",
          "symbol": "TREG",
          "kind": "electrical",
          "unit": "°C",
          "min": null,
          "typ": 125,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "PGOOD Pull Down Voltage",
          "symbol": "VPGOOD",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 200,
          "max": null,
          "conditions": "IPGOOD = 5mA",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "CHG Pull Down Voltage",
          "symbol": "VCHG",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 200,
          "max": null,
          "conditions": "ICHG = 5mA",
          "source_page": 5,
          "source": "datasheet"
        }
      ]
    }
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    "name": "Ray",
    "email": "[email protected]"
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