component
BQ25895RTWT
Public Made by Adomby adom
Texas Instruments Battery Management, WQFN-24-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"schema_version": 1,
"type": "component",
"slug": "bq25895rtwt",
"title": "BQ25895RTWT",
"brief": "Texas Instruments Battery Management, WQFN-24-EP(4x4). 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)",
"bq25895rtwt",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "BQ25895RTWT",
"manufacturer": "Texas Instruments",
"package": "WQFN-24-EP(4x4)",
"pin_count": 25,
"category": "Power Management (PMIC)",
"subcategory": "Battery Management",
"datasheet": "https://www.ti.com/cn/lit/gpn/bq25895",
"parts": {
"symbol": "bq25895rtwt.kicad_sym",
"footprint": "bq25895rtwt.kicad_mod",
"model_3d": "bq25895rtwt-hero.glb",
"model_3d_plain": "bq25895rtwt-etched.glb",
"model_3d_step": "bq25895rtwt-etched.step",
"model_3d_step_plain": "bq25895rtwt.step",
"lbr": "bq25895rtwt.lbr"
},
"distributor_links": {
"lcsc": "C2861263"
},
"distributor_check": {
"checked_at": "2026-10-18T09:15:12Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "quota"
},
"mouser": {
"pn": null,
"status": "quota"
}
},
"pins": [
{
"number": "1",
"name": "VBUS",
"type": "power_in",
"description": "Charger input voltage (recommended 3.9 V to 14 V, absolute maximum -2 V to 22 V with converter not switching); the internal RBFET connects VBUS to PMID, and a 1-µF ceramic capacitor should be placed from VBUS to PGND as close to the IC as possible."
},
{
"number": "2",
"name": "D+",
"type": "bidirectional",
"description": "Positive line of the USB data pair used for D+/D- host and charging port detection (DCD, BC1.2 primary and secondary detection) and the MaxCharge adjustable high-voltage adapter handshake, with an absolute maximum of -0.3 V to 7 V."
},
{
"number": "3",
"name": "D–",
"type": "bidirectional",
"description": "Negative line of the USB data pair used for D+/D- host and charging port detection (DCD, BC1.2 primary and secondary detection) and the MaxCharge adjustable high-voltage adapter handshake, with an absolute maximum of -0.3 V to 7 V."
},
{
"number": "4",
"name": "STAT",
"type": "output",
"description": "Open-drain charge status output that is LOW during charge in progress, HIGH on charge complete or charge disabled, blinks at 1 Hz on fault, and should be connected to a pull-up rail through 10 kΩ (absolute maximum 20 V, sink current 6 mA)."
},
{
"number": "5",
"name": "SCL",
"type": "input",
"description": "I2C interface clock input that should be connected to the logic rail through a 10-kΩ resistor (absolute maximum -0.3 V to 7 V)."
},
{
"number": "6",
"name": "SDA",
"type": "bidirectional",
"description": "I2C interface data line that should be connected to the logic rail through a 10-kΩ resistor (absolute maximum -0.3 V to 7 V)."
},
{
"number": "7",
"name": "INT",
"type": "output",
"description": "Open-drain interrupt output that sends an active-low 256-µs pulse to the host to report charger status and faults, and should be pulled up to a logic rail through 10 kΩ (sink current 6 mA maximum)."
},
{
"number": "8",
"name": "OTG",
"type": "input",
"description": "Boost mode enable input; boost mode is activated when OTG_CONFIG = 1, OTG is high, and no input source is detected at VBUS (absolute maximum 7 V)."
},
{
"number": "9",
"name": "CE",
"type": "input",
"description": "Active-low charge enable input; battery charging is enabled when CHG_CONFIG = 1 and CE is low, and CE must be pulled either high or low rather than left floating."
},
{
"number": "10",
"name": "ILIM",
"type": "input",
"description": "Input current limit pin that sets the maximum input current by regulating ILIM at 0.8 V with IINMAX = KILIM/RILIM, can also monitor input current when ILIM is below 0.8 V, and does not support limits below 500 mA (absolute maximum 5 V)."
},
{
"number": "11",
"name": "TS",
"type": "input",
"description": "Temperature qualification input for a negative temperature coefficient thermistor (103AT-2 recommended), biased from REGN through a resistor divider, with charge suspended when TS is out of range (absolute maximum 7 V)."
},
{
"number": "12",
"name": "QON",
"type": "input",
"description": "BATFET enable/reset control input with an internal pull-up; a logic low of tSHIPMODE exits shipping mode, and a logic low of tQON_RST resets SYS when VBUS is not plugged in (absolute maximum 7 V)."
},
{
"number": "13",
"name": "BAT",
"type": "power_in",
"description": "Battery connection to the positive terminal of the battery pack, with the internal BATFET connected between BAT and SYS; a 10-µF capacitor should be placed close to the BAT pin (absolute maximum 6 V with converter not switching)."
},
{
"number": "14",
"name": "BAT",
"type": "power_in",
"description": "Battery connection to the positive terminal of the battery pack, with the internal BATFET connected between BAT and SYS; a 10-µF capacitor should be placed close to the BAT pin (absolute maximum 6 V with converter not switching)."
},
{
"number": "15",
"name": "SYS",
"type": "power_out",
"description": "System connection point where the switch-mode converter keeps SYS above the minimum system voltage (default 3.5 V) when the battery is low; a 20-µF capacitor should be placed close to the SYS pin."
},
{
"number": "16",
"name": "SYS",
"type": "power_out",
"description": "System connection point where the switch-mode converter keeps SYS above the minimum system voltage (default 3.5 V) when the battery is low; a 20-µF capacitor should be placed close to the SYS pin."
},
{
"number": "17",
"name": "PGND",
"type": "power_in",
"description": "Power ground for the high-current converter, connected to the source of the LSFET, with a single-point connection to analog GND near the IC PGND pin recommended."
},
{
"number": "18",
"name": "PGND",
"type": "power_in",
"description": "Power ground for the high-current converter, connected to the source of the LSFET, with a single-point connection to analog GND near the IC PGND pin recommended."
},
{
"number": "19",
"name": "SW",
"type": "output",
"description": "Switching node connecting to the output inductor, with a 0.047-µF bootstrap capacitor connected from SW to BTST (absolute maximum -2 V to 16 V, with -3 V to 16 V peak for 10 ns)."
},
{
"number": "20",
"name": "SW",
"type": "output",
"description": "Switching node connecting to the output inductor, with a 0.047-µF bootstrap capacitor connected from SW to BTST (absolute maximum -2 V to 16 V, with -3 V to 16 V peak for 10 ns)."
},
{
"number": "21",
"name": "BTST",
"type": "power_out",
"description": "Positive supply for the PWM high-side driver, connected to the anode of the bootstrap diode, with a 0.047-µF bootstrap capacitor from SW to BTST (absolute maximum -0.3 V to 20 V)."
},
{
"number": "22",
"name": "REGN",
"type": "power_out",
"description": "PWM low-side driver positive supply output connected to the bootstrap diode cathode, requiring a 4.7-µF (10 V rated) ceramic capacitor to analog GND placed close to the IC, which also biases the TS pin."
},
{
"number": "23",
"name": "PMID",
"type": "power_out",
"description": "Battery boost mode output connected to the RBFET and HSFET drains, requiring at least 8.2 µF to PGND without OTG, or 40 µF for up to 2.4 A and 60 µF for up to 3.1 A output with OTG."
},
{
"number": "24",
"name": "DSEL",
"type": "output",
"description": "Open-drain D+/D- multiplexer selection control, pulled up to a logic rail through 10 kΩ, which is driven low during D+/D- detection and when MaxCharge is detected and floats high for other input source types (absolute maximum 20 V, sink current 6 mA)."
},
{
"number": "25",
"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 PowerPAD is listed in the pin table without a pin number, so it is not included in the p; Pin types are mapped to KiCad ERC classes by judgment. The datasheet gives P, AI, AIO and DO/DI code; The datasheet pin table is for the RTW (WQFN) package and the ordering addendum confirms BQ25895RTWT",
"exposed pad 25 added from the footprint"
],
"pages_sent": 21,
"cost_usd": 0.1266,
"at": "2026-10-18T09:14:58"
},
"datasheet": {
"url": "https://www.ti.com/cn/lit/gpn/bq25895",
"pages": 65,
"sha256": "9e00f1f30064dad8",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 25,
"described": 25,
"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",
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"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "096fc110543e6d324c5120c2d38e3dca87a389da9b6fac234f1fe40856295ef4",
"checked": "2026-10-18",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "bq25895rtwt-etched.step",
"role": "eda",
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"footprint_binding": "identity",
"sha256": "91e36591c4276346c8e3a3a4559146ebf75e83a2ac1b1a939177b0c0bc3f4c80",
"checked": "2026-10-18",
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}
]
},
"metadata": {
"specs": {
"Manufacturer": "Texas Instruments",
"Package": "WQFN-24-EP(4x4)",
"Category": "Power Management (PMIC)",
"Pins": "25"
},
"appearance": {
"contacts": {
"quote": "1. Place input capacitor as close as possible to PMID pin and GND pin connections and use shortest copper",
"page": 55,
"doc": "ds.pdf",
"material": "copper"
},
"version": 1,
"datasheet_sha256": "9e00f1f30064dad8283cc31fad7fe3cb5687bb7076b55717f7be70a43bb274bf"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "9e00f1f30064dad8283cc31fad7fe3cb5687bb7076b55717f7be70a43bb274bf",
"rows": [
{
"name": "VBUS voltage range (converter not switching)",
"symbol": "VBUS",
"kind": "absolute_maximum",
"unit": "V",
"min": -2,
"typ": null,
"max": 22,
"conditions": "converter not switching",
"source_page": 6,
"source": "datasheet"
},
{
"name": "PMID voltage range (converter not switching)",
"symbol": "PMID",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 22,
"conditions": "converter not switching",
"source_page": 6,
"source": "datasheet"
},
{
"name": "STAT voltage range",
"symbol": "STAT",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 20,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "DSEL voltage range",
"symbol": "DSEL",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 20,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "BTST voltage range",
"symbol": "BTST",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 20,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "SW voltage range",
"symbol": "SW",
"kind": "absolute_maximum",
"unit": "V",
"min": -2,
"typ": null,
"max": 16,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "SW voltage peak",
"symbol": "SW",
"kind": "absolute_maximum",
"unit": "V",
"min": -3,
"typ": null,
"max": 16,
"conditions": "peak for 10 ns duration",
"source_page": 6,
"source": "datasheet"
},
{
"name": "BAT, SYS voltage range",
"symbol": "BAT, SYS",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 6,
"conditions": "converter not switching",
"source_page": 6,
"source": "datasheet"
},
{
"name": "SDA, SCL, INT, OTG, REGN, TS, CE, QON voltage range",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 7,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "D+, D- voltage range",
"symbol": "D+, D-",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 7,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "BTST to SW voltage range",
"symbol": "BTST to SW",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 7,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "PGND to GND voltage range",
"symbol": "PGND to GND",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 0.3,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "ILIM voltage range",
"symbol": "ILIM",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 5,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Output sink current INT, STAT",
"symbol": "",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 6,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Output sink current DSEL",
"symbol": "",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 6,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Junction temperature",
"symbol": "TJ",
"kind": "absolute_maximum",
"unit": "°C",
"min": -40,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Storage temperature range",
"symbol": "Tstg",
"kind": "absolute_maximum",
"unit": "°C",
"min": -65,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Input voltage",
"symbol": "VIN",
"kind": "recommended_operating",
"unit": "V",
"min": 3.9,
"typ": null,
"max": 14,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Input current (VBUS)",
"symbol": "IIN",
"kind": "recommended_operating",
"unit": "A",
"min": null,
"typ": null,
"max": 3.25,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Output current (SW)",
"symbol": "ISYS",
"kind": "recommended_operating",
"unit": "A",
"min": null,
"typ": null,
"max": 5,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Battery voltage",
"symbol": "VBAT",
"kind": "recommended_operating",
"unit": "V",
"min": null,
"typ": null,
"max": 4.608,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Fast charging current",
"symbol": "IBAT",
"kind": "recommended_operating",
"unit": "A",
"min": null,
"typ": null,
"max": 5,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Discharging current with internal MOSFET (continuous)",
"symbol": "IBAT",
"kind": "recommended_operating",
"unit": "A",
"min": null,
"typ": null,
"max": 6,
"conditions": "continuous",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Discharging current with internal MOSFET (peak)",
"symbol": "IBAT",
"kind": "recommended_operating",
"unit": "A",
"min": null,
"typ": null,
"max": 9,
"conditions": "up to 1 sec duration",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Operating free-air temperature range",
"symbol": "TA",
"kind": "recommended_operating",
"unit": "°C",
"min": -40,
"typ": null,
"max": 85,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Input high-impedance quiescent current, BATFET disabled",
"symbol": "I(VBUS_HIZ)",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 12,
"max": 23,
"conditions": "High-Z mode, no VBUS, BATFET disabled (REG09[5]=1), battery monitor disabled, TJ < 85°C",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Input high-impedance quiescent current, BATFET enabled",
"symbol": "IBAT",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 32,
"max": 60,
"conditions": "High-Z mode, no VBUS, BATFET enabled (REG09[5]=0), battery monitor disabled, TJ < 85°C",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Input supply current (VBUS) in High-Z mode",
"symbol": "I(VBUS_HIZ)",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 15,
"max": 35,
"conditions": "V(VBUS)= 5 V, High-Z mode, no battery, battery monitor disabled",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Input supply current (VBUS) in buck mode",
"symbol": "I(VBUS)",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 1.5,
"max": 3,
"conditions": "VBUS > V(UVLO), VBUS > VBAT, converter not switching",
"source_page": 7,
"source": "datasheet"
},
{
"name": "VBUS operating range",
"symbol": "V(VBUS_OP)",
"kind": "electrical",
"unit": "V",
"min": 3.9,
"typ": null,
"max": 14,
"conditions": "",
"source_page": 7,
"source": "datasheet"
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{
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