component
BQ24052DSQT
Public Made by Adomby adom
Texas Instruments Battery Management, WSON-10-EP(2x2). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"slug": "bq24052dsqt",
"title": "BQ24052DSQT",
"brief": "Texas Instruments Battery Management, WSON-10-EP(2x2). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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"manufacturer": "Texas Instruments",
"package": "WSON-10-EP(2x2)",
"pin_count": 11,
"category": "Power Management (PMIC)",
"subcategory": "Battery Management",
"datasheet": "https://www.ti.com/lit/ds/symlink/bq24052.pdf",
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"name": "IN",
"type": "power_in",
"description": "Input power connected to the external DC supply (AC adapter or USB port), recommended IN voltage range 3.5 V to 28 V with a 1 µF to 10 µF bypass capacitor from IN to VSS."
},
{
"number": "2",
"name": "ISET",
"type": "input",
"description": "Programs the fast-charge current; an external resistor from ISET to VSS sets the value, with range 52.3 kΩ (10 mA) to 540 Ω (1 A)."
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{
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"name": "VSS",
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"description": "Ground terminal; must be connected to ground at all times and to the same potential as the thermal pad."
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{
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"name": "PRE-TERM",
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"description": "Programs the current termination threshold (5% to 50% of IOUT) and sets the precharge current to twice the termination current, using a programming resistor of 1 kΩ to 10 kΩ."
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{
"number": "5",
"name": "D+",
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"description": "USB port D+ input connection used for automatic input source detection."
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"description": "USB port D- input connection used for automatic input source detection."
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{
"number": "7",
"name": "ISET2",
"type": "input",
"description": "Programs the input/output current limit for USB or adaptor: High = 500 mA max, Low = ISET, Float = 100 mA max."
},
{
"number": "8",
"name": "CHG",
"type": "output",
"description": "Open-drain charge status output: low (FET on) indicates charging, high impedance indicates no charge or charge complete, with sink current limited to 15 mA."
},
{
"number": "9",
"name": "TS",
"type": "input",
"description": "Temperature sense input for the battery-pack NTC thermistor; floating or pulled high enters TTDM and disables TS monitoring, while pulling it low disables the IC."
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{
"number": "10",
"name": "OUT",
"type": "power_out",
"description": "Battery connection and charge output with continuous current up to 1.25 A absolute maximum; the average system load should not prevent full charging within the 10-hour safety timer, with a 1 µF to 10 µF bypass capacitor."
},
{
"number": "11",
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"extractor flagged: The exposed thermal pad (2x2 mm, electrically tied to VSS) is listed in Table 5-1 but has no printed; TS pin (9) carries a footnote 'Spins have different pin definitions'. The description covers both th; Package addendum (page 32) lists BQ24052DSQT as WSON (DSQ), 10 pins, 250-piece small T&R, which matc",
"1/11 pin names appear NOWHERE in the datasheet text: ['5:D+@p4']"
],
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"at": "2026-11-06T00:03:53"
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"metadata": {
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"Manufacturer": "Texas Instruments",
"Package": "WSON-10-EP(2x2)",
"Category": "Power Management (PMIC)",
"Pins": "11"
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{
"name": "Input voltage range, IN",
"symbol": "VIN",
"kind": "recommended_operating",
"unit": "V",
"min": 3.5,
"typ": null,
"max": 28,
"conditions": "IN voltage range",
"source_page": 5,
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{
"name": "Input voltage, IN (absolute max)",
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"min": -0.3,
"typ": null,
"max": 30,
"conditions": "with respect to VSS",
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{
"name": "Output voltage, OUT (absolute max)",
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"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 7,
"conditions": "with respect to VSS",
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{
"name": "PRE-TERM, ISET, ISET2, TS, CHG, D+, D- voltage (absolute max)",
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{
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"min": null,
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{
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"min": null,
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{
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"min": null,
"typ": null,
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{
"name": "Junction temperature (absolute max)",
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"unit": "°C",
"min": -40,
"typ": null,
"max": 150,
"conditions": "",
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{
"name": "Storage temperature range",
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"kind": "absolute_maximum",
"unit": "°C",
"min": -65,
"typ": null,
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"conditions": "",
"source_page": 5,
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{
"name": "Junction temperature, operating",
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"unit": "°C",
"min": 0,
"typ": null,
"max": 125,
"conditions": "",
"source_page": 5,
"source": "datasheet"
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{
"name": "IN operating voltage range (restricted by VDPM and VOVP)",
"symbol": "",
"kind": "recommended_operating",
"unit": "V",
"min": 4.45,
"typ": null,
"max": 6.45,
"conditions": "",
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},
{
"name": "RPRE-TERM precharge and termination programming resistor",
"symbol": "RPRE-TERM",
"kind": "recommended_operating",
"unit": "kΩ",
"min": 1,
"typ": null,
"max": 10,
"conditions": "Programs precharge and termination current thresholds",
"source_page": 5,
"source": "datasheet"
},
{
"name": "RISET fast-charge programming resistor",
"symbol": "RISET",
"kind": "recommended_operating",
"unit": "kΩ",
"min": 0.54,
"typ": null,
"max": 52.3,
"conditions": "Fast-charge current programming resistor",
"source_page": 5,
"source": "datasheet"
},
{
"name": "RTS 100k NTC thermistor range without entering TTDM (BQ24052)",
"symbol": "RTS",
"kind": "recommended_operating",
"unit": "kΩ",
"min": 24,
"typ": null,
"max": 885,
"conditions": "100k NTC thermistor range without entering TTDM, BQ24052",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Junction-to-ambient thermal resistance",
"symbol": "RθJA",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 63.5,
"max": null,
"conditions": "DSQ (WSON) 10 pins",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Junction-to-case (top) thermal resistance",
"symbol": "RθJC(top)",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 79.5,
"max": null,
"conditions": "DSQ (WSON) 10 pins",
"source_page": 6,
"source": "datasheet"
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{
"name": "Junction-to-board thermal resistance",
"symbol": "RθJB",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 33.9,
"max": null,
"conditions": "DSQ (WSON) 10 pins",
"source_page": 6,
"source": "datasheet"
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{
"name": "Junction-to-top characterization parameter",
"symbol": "ψJT",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 7.8,
"max": null,
"conditions": "DSQ (WSON) 10 pins",
"source_page": 6,
"source": "datasheet"
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{
"name": "Junction-to-board characterization parameter",
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"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 34.3,
"max": null,
"conditions": "DSQ (WSON) 10 pins",
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{
"name": "Junction-to-case (bottom) thermal resistance",
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"source": "datasheet"
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{
"name": "Undervoltage lock-out",
"symbol": "UVLO",
"kind": "electrical",
"unit": "V",
"min": 3.15,
"typ": 3.3,
"max": 3.45,
"conditions": "Exit VIN: 0V → 4V; Update based on sim/char",
"source_page": 6,
"source": "datasheet"
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{
"name": "Hysteresis on UVLO",
"symbol": "VHYS_UVLO",
"kind": "electrical",
"unit": "mV",
"min": 175,
"typ": 230,
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"conditions": "VIN: 4V→0V, VUVLO_FALL = VUVLO_RISE –VHYS-UVLO",
"source_page": 6,
"source": "datasheet"
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{
"name": "Input power good detection threshold",
"symbol": "VIN-DT",
"kind": "electrical",
"unit": "mV",
"min": 30,
"typ": 80,
"max": 145,
"conditions": "Input power good if VIN > VOUT + VIN-DT; VOUT = 3.6V, VIN: 3.5V → 4V",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Input overvoltage protection threshold",
"symbol": "VOVP",
"kind": "electrical",
"unit": "V",
"min": 6.5,
"typ": 6.65,
"max": 6.8,
"conditions": "VIN: 5V → 7V (50/52)",
"source_page": 6,
"source": "datasheet"
},
{
"name": "USB/Adaptor low input voltage protection, USB mode",
"symbol": "VIN-DPM",
"kind": "electrical",
"unit": "V",
"min": 4.34,
"typ": 4.4,
"max": 4.46,
"conditions": "Feature active in USB mode; Limit Input Source Current to 50mA; VOUT = 3.5V; RISET = 825Ω",
"source_page": 6,
"source": "datasheet"
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{
"name": "USB/Adaptor low input voltage protection, Adaptor mode",
"symbol": "VIN-DPM",
"kind": "electrical",
"unit": "V",
"min": 4.24,
"typ": 4.3,
"max": 4.36,
"conditions": "Feature active in Adaptor mode; Limit Input Source Current to 50mA; VOUT = 3.5V; RISET = 825Ω",
"source_page": 6,
"source": "datasheet"
},
{
"name": "USB input I-Limit 100 mA",
"symbol": "IIN-USB-CL",
"kind": "electrical",
"unit": "mA",
"min": 85,
"typ": 92,
"max": 100,
"conditions": "ISET2 = Float; RISET = 825Ω",
"source_page": 6,
"source": "datasheet"
},
{
"name": "USB input I-Limit 500 mA",
"symbol": "IIN-USB-CL",
"kind": "electrical",
"unit": "mA",
"min": 430,
"typ": 462,
"max": 500,
"conditions": "ISET2 = High; RISET = 825Ω",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Highest resistor value considered a fault (short)",
"symbol": "RISET_SHORT",
"kind": "electrical",
"unit": "Ω",
"min": 280,
"typ": null,
"max": 500,
"conditions": "Riset: 600Ω → 250Ω, Iout latches off. Cycle power to Reset. USB100 mode. Monitored for Iout>90mA",
"source_page": 6,
"source": "datasheet"
},
{
"name": "OUT pin short-circuit detection threshold / precharge threshold",
"symbol": "VOUT(SC)",
"kind": "electrical",
"unit": "V",
"min": 0.75,
"typ": 0.8,
"max": 0.85,
"conditions": "VOUT: 3V → 0.5V, no deglitch",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Source current to OUT pin during short-circuit detection",
"symbol": "IOUT(SC)",
"kind": "electrical",
"unit": "mA",
"min": 10,
"typ": 15,
"max": 20,
"conditions": "",
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{
"name": "Battery regulation voltage",
"symbol": "VOUT(REG)",
"kind": "electrical",
"unit": "V",
"min": 4.16,
"typ": 4.2,
"max": 4.23,
"conditions": "VIN = 5.5V, IOUT = 25mA, VTS-45°C ≤ VTS ≤ VTS-0°C",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Battery hot regulation voltage",
"symbol": "VO_HT(REG)",
"kind": "electrical",
"unit": "V",
"min": 4.02,
"typ": 4.06,
"max": 4.1,
"conditions": "VIN = 5.5V, IOUT = 25mA, VTS-60°C ≤ VTS ≤ VTS-45°C",
"source_page": 6,
"source": "datasheet"
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{
"name": "Fast charge current factor KISET, 50 < IOUT < 1 A",
"symbol": "KISET",
"kind": "electrical",
"unit": "AΩ",
"min": 510,
"typ": 540,
"max": 570,
"conditions": "RISET = KISET /IOUT 50 < IOUT < 1 A",
"source_page": 7,
"source": "datasheet"
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{
"name": "Fast charge current factor KISET, 25 < IOUT < 50 mA",
"symbol": "KISET",
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"min": 480,
"typ": 527,
"max": 600,
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"min": 350,
"typ": 520,
"max": 680,
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"name": "Precharge to fast-charge transition threshold",
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"name": "Precharge current level, default setting",
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"min": 18,
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"conditions": "VOUT < VLOWV, VIN = 5V, RPRE-TERM = 2k to 10kΩ; RISET = 1080Ω, RPRE-TERM = KPRE-CHG × %IFAST-CHG, where %IFAST-CHG is 20 to 100%",
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"conditions": "VOUT < VLOWV, VIN = 5V, RPRE-TERM = 1k to 2kΩ; RISET = 1080Ω, RPRE-TERM = KPRE-CHG × %IFAST-CHG, where %IFAST-CHG is 10% to 20%",
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"name": "Termination current threshold, default setting",
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"conditions": "VOUT > VRCH; RPRE-TERM = High Z (≥13kΩ); RISET = 1k",
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"name": "Termination factor KTERM, 2k to 10kΩ",
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"conditions": "VOUT > VRCH, VIN = 5V, RPRE-TERM = 2k to 10kΩ; RISET = 750Ω; KTERM × %IFAST-CHG, where %IFAST-CHG is 10 to 50%",
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"name": "NTC bias current, 100k NTC thermistor (BQ24052)",
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"name": "Temperature regulation limit",
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"name": "Input overvoltage blanking time",
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"min": null,
"typ": null,
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"conditions": "VIN: 5V → 12V",
"source_page": 10,
"source": "datasheet"
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