main
Ray Set visibility: public b0c141a 5d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "cr6889b",
  "title": "CR6889B",
  "brief": "Chip-Rail AC-DC Controllers & Regulators, SOT-23-6L. 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 ics",
    "cr6889b",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "CR6889B",
    "manufacturer": "Chip-Rail",
    "package": "SOT-23-6L",
    "pin_count": 6,
    "category": "Power Management ICs",
    "subcategory": "AC-DC Controllers & Regulators",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/9aa45b791d86624e4d31a6c97d3b1981.pdf",
    "parts": {
      "symbol": "cr6889b.kicad_sym",
      "footprint": "cr6889b.kicad_mod",
      "model_3d": "cr6889b-hero.glb",
      "model_3d_plain": "cr6889b-etched.glb",
      "model_3d_step": "cr6889b-etched.step",
      "model_3d_step_plain": "cr6889b.step",
      "lbr": "cr6889b.lbr"
    },
    "distributor_links": {
      "lcsc": "C2688904"
    },
    "distributor_check": {
      "checked_at": "2026-11-02T17:21:07Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin for the controller, as printed as 地脚 (ground pin) on the SOT23-6L pinout."
      },
      {
        "number": "2",
        "name": "FB",
        "type": "input",
        "description": "Voltage feedback pin that, together with CS, sets the output duty cycle and also controls the operating frequency; FB rising above 4.1 V for 60 ms triggers overload protection."
      },
      {
        "number": "3",
        "name": "OVP",
        "type": "input",
        "description": "Senses the auxiliary-winding voltage through an external resistor divider to set the output overvoltage threshold (3 V typical, 2.85 V to 3.15 V), and leaving it floating disables output OVP."
      },
      {
        "number": "4",
        "name": "CS",
        "type": "input",
        "description": "Current sense pin where a resistor between the MOSFET source and ground senses inductor current, with overcurrent threshold 0.45 V typical at 0% duty and clamp at 0.72 V."
      },
      {
        "number": "5",
        "name": "VDD",
        "type": "power_in",
        "description": "Supply pin with UVLO turn-on at 17.2 V typical and recommended operating range 12 V to 26 V, VDD overvoltage protection at 28 V typical, and absolute maximum rating of 30 V."
      },
      {
        "number": "6",
        "name": "GATE",
        "type": "output",
        "description": "Gate driver output that drives the external power MOSFET gate, with output low 1 V maximum at 5 mA, output high 6 V at 20 mA, and clamp voltage 11 V."
      }
    ],
    "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": [],
        "pages_sent": 10,
        "cost_usd": 0.0086,
        "at": "2026-11-02T17:20:55"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/9aa45b791d86624e4d31a6c97d3b1981.pdf",
        "pages": 10,
        "sha256": "47730a647c462c00",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 6,
        "described": 6,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "cr6889b.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          1.55
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "c9fe686b4d1b56927a41fa84a9bc1efb61d8a45a123a3db43bcaa05c2891d635",
        "checked": "2026-11-02",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cr6889b-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "cf029b67a1318063909833751a0ec5b665c4a2233f5641d955c57e389bbba8d1",
        "checked": "2026-11-02",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Chip-Rail",
      "Package": "SOT-23-6L",
      "Category": "Power Management ICs",
      "Pins": "6"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "47730a647c462c002823181c7b6dd6f8703381a952d81f0092d104954b478240",
      "rows": [
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          "name": "电源电压",
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          "typ": null,
          "max": 30,
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          "source_page": 3,
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        },
        {
          "name": "FB脚输入电压",
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          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
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          "max": 7,
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          "source": "datasheet"
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        {
          "name": "CS脚输入电压",
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          "source": "datasheet"
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        {
          "name": "OVP脚输入电压",
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          "name": "焊接温度",
          "symbol": "TL",
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          "unit": "℃",
          "min": null,
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          "conditions": "10s",
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          "source": "datasheet"
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          "name": "工作结温范围",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "℃",
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          "typ": 3,
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          "conditions": "UVLO_OFF-1V",
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          "typ": 2.5,
          "max": 3.5,
          "conditions": "VCS=4.5V, VFB=3V",
          "source_page": 4,
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        {
          "name": "CRM模式工作电流",
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          "kind": "electrical",
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          "min": null,
          "typ": 0.6,
          "max": 0.7,
          "conditions": "VCS=0V, VFB=0.5V",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "系统启动VDD电压",
          "symbol": "UVLO_OFF",
          "kind": "electrical",
          "unit": "V",
          "min": 16.2,
          "typ": 17.2,
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          "name": "系统关断VDD电压",
          "symbol": "UVLO_ON",
          "kind": "electrical",
          "unit": "V",
          "min": 6.8,
          "typ": 7.3,
          "max": 7.8,
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        },
        {
          "name": "VDD过压保护",
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          "kind": "electrical",
          "unit": "V",
          "min": 26.5,
          "typ": 28,
          "max": 29.5,
          "conditions": "",
          "source_page": 4,
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        },
        {
          "name": "最大占空比",
          "symbol": "DMAX",
          "kind": "electrical",
          "unit": "%",
          "min": 77,
          "typ": 80,
          "max": 83,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "0占空比时过流检测阈值电压",
          "symbol": "VTH_OC",
          "kind": "electrical",
          "unit": "V",
          "min": 0.43,
          "typ": 0.45,
          "max": 0.47,
          "conditions": "0 占空比时",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "输出过压保护电压阈值",
          "symbol": "VOutput_OVP",
          "kind": "electrical",
          "unit": "V",
          "min": 2.85,
          "typ": 3,
          "max": 3.15,
          "conditions": "",
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        {
          "name": "PWM频率",
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          "kind": "electrical",
          "unit": "kHz",
          "min": 60,
          "typ": 65,
          "max": 70,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "频率抖动范围",
          "symbol": "ΔFJITTER",
          "kind": "electrical",
          "unit": "%",
          "min": -6,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "GATE上拉PMOS开启时VDD电压",
          "symbol": "VPULL_UP",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 10,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "PWM输入增益",
          "symbol": "AVCS",
          "kind": "electrical",
          "unit": "V/V",
          "min": null,
          "typ": 3.5,
          "max": null,
          "conditions": "△FB/△CS",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "FB短路电流",
          "symbol": "IFB",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 200,
          "max": null,
          "conditions": "VFB=0V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "FB开路电压",
          "symbol": "VFB",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 5.1,
          "max": null,
          "conditions": "VFB=Open",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "进入PFM时的FB电压",
          "symbol": "VREF_GREEN",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 2.1,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "退出CRM时的FB电压",
          "symbol": "VCRM_H",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.23,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "进入CRM时的FB电压",
          "symbol": "VCRM_L",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.13,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "过载保护时FB电压",
          "symbol": "VOLP",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 4.1,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "过载保护延迟时间",
          "symbol": "TOLP",
          "kind": "timing",
          "unit": "ms",
          "min": null,
          "typ": 60,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "软启动时间",
          "symbol": "TSS",
          "kind": "timing",
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          "min": null,
          "typ": 2.5,
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          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "前沿消隐时间",
          "symbol": "TLEB",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 300,
          "max": null,
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          "source": "datasheet"
        },
        {
          "name": "过流检测延迟时间",
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          "unit": "ns",
          "min": null,
          "typ": 90,
          "max": null,
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        },
        {
          "name": "过流检测箝位电压",
          "symbol": "VTH_OC_CLAMP",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.72,
          "max": null,
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          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "过热保护检测的温度",
          "symbol": "OTP",
          "kind": "electrical",
          "unit": "℃",
          "min": null,
          "typ": 150,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "过热保护检测迟滞",
          "symbol": "Hys.",
          "kind": "electrical",
          "unit": "℃",
          "min": null,
          "typ": 30,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "输出过压保护检测延迟时间",
          "symbol": "TD_Output_OVP",
          "kind": "timing",
          "unit": "Cycles",
          "min": null,
          "typ": 6,
          "max": null,
          "conditions": "",
          "source_page": 4,
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        {
          "name": "输出低电平",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1,
          "max": null,
          "conditions": "IO=5mA",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "输出高电平",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
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          "max": null,
          "conditions": "IO=20mA",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "输出箝位电压",
          "symbol": "VCLAMP",
          "kind": "electrical",
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          "min": null,
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          "max": null,
          "conditions": "CL=1nF",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "PFM最小频率",
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          "kind": "electrical",
          "unit": "kHz",
          "min": null,
          "typ": 22,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "VDD对PWM频率的影响",
          "symbol": "ΔFVDD",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 1,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "温度对PWM频率的影响",
          "symbol": "ΔFTEMP",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 1,
          "max": null,
          "conditions": "-30~100℃",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "频率抖动周期",
          "symbol": "FJITTER",
          "kind": "timing",
          "unit": "Hz",
          "min": null,
          "typ": 32,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "cr6889b"
  ],
  "discovery_pitch": "CR6889B (Chip-Rail) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "cr6889b.kicad_sym",
    "cr6889b.kicad_mod",
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