component
SE9029X
Public Made by Adomby adom
Seaward Elec Battery Management, SOP-8-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"schema_version": 1,
"type": "component",
"slug": "se9029x",
"title": "SE9029X",
"brief": "Seaward Elec Battery Management, SOP-8-EP. 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)",
"se9029x",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "SE9029X",
"manufacturer": "Seaward Elec",
"package": "SOP-8-EP",
"pin_count": 9,
"category": "Power Management (PMIC)",
"subcategory": "Battery Management",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588918358040961024",
"parts": {
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"footprint": "se9029x.kicad_mod",
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"model_3d_plain": "se9029x-etched.glb",
"model_3d_step": "se9029x-etched.step",
"model_3d_step_plain": "se9029x.step",
"lbr": "se9029x.lbr"
},
"distributor_links": {
"lcsc": "C668227"
},
"distributor_check": {
"checked_at": "2026-10-18T12:01:48Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "quota"
},
"mouser": {
"pn": null,
"status": "quota"
}
},
"pins": [
{
"number": "1",
"name": "GND",
"type": "power_in",
"description": "Ground pin (地) for the charger."
},
{
"number": "2",
"name": "VIN",
"type": "power_in",
"description": "Power input pin; the recommended input range is 4.7 V to 5.5 V, the absolute maximum is -0.3 V to 6.5 V, and a C1 of at least 10 µF must be placed as close to VIN as possible."
},
{
"number": "3",
"name": "CHRG",
"type": "output",
"description": "Charge-status indicator: pulled low during trickle and constant-current charging and high impedance when charging is complete or in fault/sleep; Vchrg is at most 0.6 V at 5 mA."
},
{
"number": "4",
"name": "STDBY",
"type": "output",
"description": "Charge-status indicator: high during trickle and constant-current charging, pulled low when charging is complete, and high impedance during temperature fault or sleep; Vstdby is at most 0.6 V at 5 mA."
},
{
"number": "5",
"name": "NC",
"type": "unconnected",
"description": "No connection (NC, empty pin) on the SE9029X; on the SE9029XD this pin is the EN enable input."
},
{
"number": "6",
"name": "BAT",
"type": "input",
"description": "Battery voltage feedback input and battery positive terminal; the float voltage is 4.2 V or 4.35 V (typical), and C3 should be placed close to this pin."
},
{
"number": "7",
"name": "SEN",
"type": "input",
"description": "Charge-current setting pin; the charge current is IBAT = 100 mV / R5, where R5 is the sense resistor connected between SEN and BAT."
},
{
"number": "8",
"name": "SW",
"type": "output",
"description": "Switching output node of the buck converter (1 MHz typical switching frequency)."
},
{
"number": "9",
"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 SOP8-EP exposed pad is not given a pin number in the pin table (pins 1-8 only), and the datashee; Pin 5 is listed as NC (name printed as NC（EN）) for the SE9029X; it is an EN enable pin only on the S; Pin descriptions are translated from the Chinese original, and the pin diagram is an image not prese",
"exposed pad 9 added from the footprint",
"1/9 pin names appear NOWHERE in the datasheet text: ['5:NC(EN)@p4']"
],
"pages_sent": 12,
"cost_usd": 0.0469,
"at": "2026-10-18T11:59:21"
},
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"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588918358040961024",
"pages": 12,
"sha256": "c55b1540a349a9d7",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 9,
"described": 9,
"cites_pages": true,
"refuses_to_fabricate": true
}
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"metadata": {
"specs": {
"Manufacturer": "Seaward Elec",
"Package": "SOP-8-EP",
"Category": "Power Management (PMIC)",
"Pins": "9"
},
"characteristics": {
"version": 1,
"source": "datasheet",
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"rows": [
{
"name": "Input supply voltage (recommended)",
"symbol": "VCC",
"kind": "recommended_operating",
"unit": "V",
"min": 4.7,
"typ": null,
"max": 5.5,
"conditions": "",
"source_page": 5,
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},
{
"name": "Junction operating temperature (recommended)",
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"min": -20,
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"conditions": "",
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{
"name": "Input supply voltage",
"symbol": "VIN",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 6.5,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Input/output pin voltage",
"symbol": "I/O",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 6.5,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "VIN/GND/SW input-output current",
"symbol": "IVIN/GND/SW",
"kind": "absolute_maximum",
"unit": "A",
"min": null,
"typ": null,
"max": 3,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Junction temperature",
"symbol": "TJ",
"kind": "absolute_maximum",
"unit": "°C",
"min": -40,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 5,
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{
"name": "Storage temperature",
"symbol": "TST",
"kind": "absolute_maximum",
"unit": "°C",
"min": -55,
"typ": null,
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"conditions": "",
"source_page": 5,
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{
"name": "Soldering temperature",
"symbol": "",
"kind": "absolute_maximum",
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"min": null,
"typ": null,
"max": 260,
"conditions": "<10 s",
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{
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"kind": "electrical",
"unit": "V",
"min": 4.7,
"typ": 5,
"max": 5.5,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Battery float voltage",
"symbol": "VFLOAT",
"kind": "electrical",
"unit": "V",
"min": 4.158,
"typ": 4.2,
"max": 4.242,
"conditions": "IOUT=0.1A（Rsen=0.2Ω）",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Maximum duty cycle",
"symbol": "DC",
"kind": "electrical",
"unit": "%",
"min": null,
"typ": null,
"max": 100,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "CHRG pin output low voltage",
"symbol": "Vchrg",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 0.2,
"max": 0.6,
"conditions": "Ichrg=5mA",
"source_page": 6,
"source": "datasheet"
},
{
"name": "STDBY pin output low voltage",
"symbol": "Vstdby",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 0.2,
"max": 0.6,
"conditions": "Istdby=5mA",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Undervoltage lockout threshold",
"symbol": "UVLO",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 3.75,
"max": null,
"conditions": "From VCC Low to High",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Undervoltage lockout hysteresis",
"symbol": "VUVHYS",
"kind": "electrical",
"unit": "mV",
"min": null,
"typ": 160,
"max": null,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Quiescent current, charging mode",
"symbol": "IIN",
"kind": "electrical",
"unit": "μA",
"min": null,
"typ": 450,
"max": null,
"conditions": "充电模式",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Quiescent current, standby (charge terminated)",
"symbol": "IIN",
"kind": "electrical",
"unit": "μA",
"min": null,
"typ": 170,
"max": null,
"conditions": "待机模式 (充电中止)",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Quiescent current, sleep mode",
"symbol": "IIN",
"kind": "electrical",
"unit": "μA",
"min": null,
"typ": 110,
"max": null,
"conditions": "休眠模式（Vin<VBAT,或 Vin<Vuvlo）",
"source_page": 5,
"source": "datasheet"
},
{
"name": "BAT current, charging",
"symbol": "IBAT",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 1000,
"max": null,
"conditions": "充电状态（Rsen=0.1Ω）",
"source_page": 5,
"source": "datasheet"
},
{
"name": "BAT current, standby (charge terminated)",
"symbol": "IBAT",
"kind": "electrical",
"unit": "uA",
"min": null,
"typ": 2,
"max": null,
"conditions": "待机模式(充电中止)",
"source_page": 5,
"source": "datasheet"
},
{
"name": "BAT current, sleep mode",
"symbol": "IBAT",
"kind": "electrical",
"unit": "uA",
"min": null,
"typ": 2,
"max": null,
"conditions": "休眠模式（Vin<VBAT,或 Vin<Vuvlo）",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Constant-current sense voltage",
"symbol": "VSEN(CHR)",
"kind": "electrical",
"unit": "mV",
"min": null,
"typ": 100,
"max": null,
"conditions": "3V≤VBAT≤4V",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Trickle-charge sense voltage",
"symbol": "VSEN(TRKL)",
"kind": "electrical",
"unit": "mV",
"min": null,
"typ": 10,
"max": null,
"conditions": "VBAT=2.5V",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Trickle-charge threshold voltage",
"symbol": "VTRKL",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 2.9,
"max": null,
"conditions": "VBAT rising",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Automatic shutdown threshold",
"symbol": "VASD",
"kind": "electrical",
"unit": "mV",
"min": null,
"typ": 100,
"max": null,
"conditions": "VIN-VBAT",
"source_page": 5,
"source": "datasheet"
},
{
"name": "P MOSFET on-resistance",
"symbol": "RPMOS",
"kind": "electrical",
"unit": "mΩ",
"min": null,
"typ": 140,
"max": null,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "N MOSFET on-resistance",
"symbol": "RNMOS",
"kind": "electrical",
"unit": "mΩ",
"min": null,
"typ": 100,
"max": null,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Recharge threshold",
"symbol": "ΔVRECHRG",
"kind": "electrical",
"unit": "mV",
"min": null,
"typ": 200,
"max": null,
"conditions": "VFLOAT -VRECHRG, VBAT falling",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Switching frequency",
"symbol": "FOSC",
"kind": "electrical",
"unit": "MHz",
"min": null,
"typ": 1,
"max": null,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Thermal shutdown threshold",
"symbol": "OTP",
"kind": "electrical",
"unit": "°C",
"min": null,
"typ": 140,
"max": null,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Soft-start time",
"symbol": "Tss",
"kind": "timing",
"unit": "uS",
"min": null,
"typ": 200,
"max": null,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Termination comparator filter time",
"symbol": "Tterm",
"kind": "timing",
"unit": "mS",
"min": null,
"typ": 1,
"max": null,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "MPPT threshold voltage",
"symbol": "Vmppt",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 4.65,
"max": null,
"conditions": "",
"source_page": 6,
"source": "datasheet"
}
]
}
},
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"email": "[email protected]"
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