component
BQ25616RTWT
Public Made by Adomby adom
Texas Instruments Battery Management ICs, WQFN-24-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"title": "BQ25616RTWT",
"brief": "Texas Instruments Battery Management ICs, WQFN-24-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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"package": "WQFN-24-EP(4x4)",
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"category": "Power Supply Chip",
"subcategory": "Battery Management ICs",
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{
"number": "1",
"name": "VAC",
"type": "power_in",
"description": "Charger input voltage sensing pin; optional external ACFET connects VAC to VBUS, and the ACOV threshold is 14.2 V with UVLO below that level."
},
{
"number": "2",
"name": "ACDRV",
"type": "output",
"description": "Charge pump output that drives an external N-channel ACFET gate with 6 V above VBUS when VAC is below the 14.2 V ACOV threshold and above UVLO; leave floating if external OVP is not used."
},
{
"number": "3",
"name": "D+",
"type": "bidirectional",
"description": "Positive USB data line used for D+/D- based host and charging port detection, rated up to 7 V absolute maximum."
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{
"number": "4",
"name": "D-",
"type": "bidirectional",
"description": "Negative USB data line used for D+/D- based host and charging port detection, rated up to 7 V absolute maximum."
},
{
"number": "5",
"name": "STAT",
"type": "output",
"description": "Open-drain charger status output that needs a 10 kΩ pull-up to a logic rail and indicates charge in progress (LOW), charge complete or sleep (HIGH), or fault (1 Hz blink); absolute maximum sink current is 6 mA."
},
{
"number": "6",
"name": "OTG",
"type": "input",
"description": "Boost mode enable input where a HIGH level enables boost mode, and the pin must not be left floating."
},
{
"number": "7",
"name": "PG",
"type": "output",
"description": "Open-drain active-low power good output that needs a 10 kΩ pull-up and goes LOW for a good input between UVLO and ACOV with input current limit above 30 mA."
},
{
"number": "8",
"name": "ILIM",
"type": "input",
"description": "Sets the input current limit IINDPM = KILIM/RILIM for an unknown adapter over an acceptable range of 500 mA to 3200 mA."
},
{
"number": "9",
"name": "CE",
"type": "input",
"description": "Charge enable input where driving the pin LOW enables battery charging."
},
{
"number": "10",
"name": "ICHG",
"type": "input",
"description": "Sets the charge current limit ICHG = KICHG/RICHG via a resistor to ground over an acceptable range of 300 mA to 3000 mA."
},
{
"number": "11",
"name": "TS",
"type": "input",
"description": "Battery NTC temperature qualification input whose window is set by a resistor divider from REGN; charge and boost are suspended when TS is out of range."
},
{
"number": "12",
"name": "VSET",
"type": "input",
"description": "Sets the default battery charge voltage by resistor to GND: float gives 4.208 V, below 500 Ω gives 4.352 V, and 5 kΩ to 25 kΩ gives 4.100 V."
},
{
"number": "13",
"name": "BAT",
"type": "power_in",
"description": "Battery connection to the positive terminal of the battery pack, with the internal sense resistor between SYS and BAT; a 10 µF capacitor is required close to this pin."
},
{
"number": "14",
"name": "BAT",
"type": "power_in",
"description": "Battery connection to the positive terminal of the battery pack, with the internal sense resistor between SYS and BAT; a 10 µF capacitor is required close to this pin."
},
{
"number": "15",
"name": "SYS",
"type": "power_out",
"description": "System output connection point with the internal sense resistor between SYS and BAT; a 10 µF minimum capacitor is required close to this pin."
},
{
"number": "16",
"name": "SYS",
"type": "power_out",
"description": "System output connection point with the internal sense resistor between SYS and BAT; a 10 µF minimum capacitor is required close to this pin."
},
{
"number": "17",
"name": "GND",
"type": "power_in",
"description": "Power ground and signal ground for the device."
},
{
"number": "18",
"name": "GND",
"type": "power_in",
"description": "Power ground and signal ground for the device."
},
{
"number": "19",
"name": "SW",
"type": "passive",
"description": "Switching node connected to the output inductor and to the source of the HSFET and drain of the LSFET; a 0.047 µF bootstrap capacitor connects from SW to BTST."
},
{
"number": "20",
"name": "SW",
"type": "passive",
"description": "Switching node connected to the output inductor and to the source of the HSFET and drain of the LSFET; a 0.047 µF bootstrap capacitor connects from SW to BTST."
},
{
"number": "21",
"name": "BTST",
"type": "power_in",
"description": "Positive supply for the high-side driver, connected to the bootstrap diode cathode, with a 0.047 µF bootstrap capacitor from SW."
},
{
"number": "22",
"name": "REGN",
"type": "power_out",
"description": "Low-side driver supply output connected to the bootstrap diode anode, requiring a 4.7 µF 10 V ceramic capacitor close to the IC to analog GND."
},
{
"number": "23",
"name": "PMID",
"type": "power_in",
"description": "Connected to the drain of the RBFET and HSFET, requiring a 10 µF capacitor to GND."
},
{
"number": "24",
"name": "VBUS",
"type": "power_in",
"description": "Charger input voltage with the internal RBFET between VBUS and PMID, requiring a 1 µF ceramic capacitor to GND placed close to the device; absolute maximum is 22 V."
},
{
"number": "25",
"name": "EP",
"type": "passive",
"description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
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"at": "2026-11-02T17:28:05"
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"Package": "WQFN-24-EP(4x4)",
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{
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{
"name": "Voltage D+, D-, STAT, OTG, PG, ILIM, CE, ICHG, TS, VSET",
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{
"name": "Output Sink Current STAT, PG",
"symbol": "",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 6,
"conditions": "",
"source_page": 7,
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{
"name": "TJ Junction temperature",
"symbol": "TJ",
"kind": "absolute_maximum",
"unit": "°C",
"min": -40,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 7,
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{
"name": "Tstg Storage temperature",
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"min": -55,
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{
"name": "Input voltage VVBUS",
"symbol": "VVBUS",
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"unit": "V",
"min": 4,
"typ": null,
"max": 13.5,
"conditions": "",
"source_page": 7,
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{
"name": "Battery voltage VBAT",
"symbol": "VBAT",
"kind": "recommended_operating",
"unit": "V",
"min": null,
"typ": null,
"max": 4.35,
"conditions": "",
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{
"name": "Input current IVBUS",
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"unit": "A",
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{
"name": "Output current (SW) ISW",
"symbol": "ISW",
"kind": "recommended_operating",
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{
"name": "Fast charging current IBAT",
"symbol": "IBAT",
"kind": "recommended_operating",
"unit": "A",
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"max": 3,
"conditions": "",
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{
"name": "RMS discharge current IBAT",
"symbol": "IBAT",
"kind": "recommended_operating",
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"typ": null,
"max": 6,
"conditions": "",
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{
"name": "Ambient temperature TA",
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"kind": "recommended_operating",
"unit": "°C",
"min": -40,
"typ": null,
"max": 85,
"conditions": "",
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{
"name": "Quiescent battery current (BAT, SYS, SW)",
"symbol": "IQ_BAT",
"kind": "electrical",
"unit": "µA",
"min": null,
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"max": 15,
"conditions": "VBAT = 4.5V, VBUS floating or VBUS = 0V - 5V, SCL, SDA = 0V or 1.8V, TJ < 85 °C, BATFET on.",
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{
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{
"name": "VAC rising for ACFET turnon, no battery",
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"min": 3.55,
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{
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{
"name": "VBUS to enable REGN",
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"max": 3.9,
"conditions": "VBUS rising",
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{
"name": "VBUS to disable REGN",
"symbol": "VVBUS_PRESENTZ",
"kind": "electrical",
"unit": "V",
"min": 3.15,
"typ": null,
"max": 3.4,
"conditions": "VBUS falling",
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{
"name": "Enter Sleep mode threshold",
"symbol": "VSLEEP",
"kind": "electrical",
"unit": "mV",
"min": 15,
"typ": 60,
"max": 110,
"conditions": "VBUS falling, VBUS - VBAT, VBAT = 4V",
"source_page": 8,
"source": "datasheet"
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{
"name": "Exit Sleep mode threshold",
"symbol": "VSLEEPZ",
"kind": "electrical",
"unit": "mV",
"min": 115,
"typ": 220,
"max": 340,
"conditions": "VBUS rising, VBUS - VBAT, VBAT = 4V",
"source_page": 8,
"source": "datasheet"
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{
"name": "VAC overvoltage rising threshold to turnoff ACFET and switching",
"symbol": "VACOV",
"kind": "electrical",
"unit": "V",
"min": 13.5,
"typ": 14.2,
"max": 14.85,
"conditions": "VAC rising",
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{
"name": "VAC overvoltage falling threshold to turnon ACFET and switching",
"symbol": "VACOV",
"kind": "electrical",
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"min": 13,
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"max": 14.5,
"conditions": "VAC falling",
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"source": "datasheet"
},
{
"name": "BAT depletion rising threshold to turn on BATFET",
"symbol": "VBAT_DPLZ",
"kind": "electrical",
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"min": 2.35,
"typ": 2.8,
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{
"name": "BAT depletion falling threshold to turn off BATFET",
"symbol": "VBAT_DPL",
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"min": 2.18,
"typ": 2.62,
"max": null,
"conditions": "VBAT falling",
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},
{
"name": "Bad adapter detection threshold",
"symbol": "VPOORSRC",
"kind": "electrical",
"unit": "V",
"min": 3.75,
"typ": 3.9,
"max": 4,
"conditions": "VBUS falling",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Typical minimum system regulation voltage",
"symbol": "VSYS_MIN",
"kind": "electrical",
"unit": "V",
"min": 3.5,
"typ": null,
"max": 3.65,
"conditions": "VBAT=3.2V < SYS_MIN = 3.5V, ISYS = 0A",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Charge voltage accuracy",
"symbol": "VREG_ACC",
"kind": "electrical",
"unit": "V",
"min": 4.0836,
"typ": 4.1,
"max": 4.1164,
"conditions": "VREG = 4.1V, RVSET=10kΩ, TJ = 0°C - 85°C",
"source_page": 9,
"source": "datasheet"
},
{
"name": "Charge voltage accuracy",
"symbol": "VREG_ACC",
"kind": "electrical",
"unit": "V",
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