component
BQ24161RGER
Public Made by Adomby adom
Texas Instruments Battery Management ICs, VQFN-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": "bq24161rger",
"title": "BQ24161RGER",
"brief": "Texas Instruments Battery Management ICs, VQFN-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 supply chip",
"bq24161rger",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "BQ24161RGER",
"manufacturer": "Texas Instruments",
"package": "VQFN-24-EP(4x4)",
"pin_count": 25,
"category": "Power Supply Chip",
"subcategory": "Battery Management ICs",
"datasheet": "https://www.ti.com/lit/ds/symlink/bq24161rger.pdf",
"parts": {
"symbol": "bq24161rger.kicad_sym",
"footprint": "bq24161rger.kicad_mod",
"model_3d": "bq24161rger-hero.glb",
"model_3d_plain": "bq24161rger-etched.glb",
"model_3d_step": "bq24161rger-etched.step",
"model_3d_step_plain": "bq24161rger.step",
"lbr": "bq24161rger.lbr"
},
"distributor_links": {
"lcsc": "C2861094",
"digikey": "BQ24161RGER-ND",
"mouser": "595-BQ24161RGER"
},
"distributor_check": {
"checked_at": "2026-11-02T19:22:35Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "BQ24161RGER-ND",
"status": "found",
"lifecycle": "Active"
},
"mouser": {
"pn": "595-BQ24161RGER",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "N.C.",
"type": "unconnected",
"description": "No connect on the BQ24161 (D- is only used on BQ24160/BQ24163 at this location)."
},
{
"number": "2",
"name": "PSEL",
"type": "input",
"description": "USB source detection input: high starts USB at 100 mA (BQ24161/8) or 500 mA (BQ24161B), low starts USB at 1.5 A; has no effect on IN and must not be left unconnected."
},
{
"number": "3",
"name": "SCL",
"type": "input",
"description": "I2C interface clock; connect to the logic rail through a 10-kΩ resistor."
},
{
"number": "4",
"name": "SDA",
"type": "bidirectional",
"description": "I2C interface data; connect to the logic rail through a 10-kΩ resistor."
},
{
"number": "5",
"name": "PGND",
"type": "power_in",
"description": "Ground terminal; connect to the thermal pad and the ground plane of the circuit, and it must be grounded at all times."
},
{
"number": "6",
"name": "DRV",
"type": "power_out",
"description": "Gate drive supply for the internal MOSFETs; bypass to PGND with a 1-μF ceramic capacitor, and it can drive external loads up to 10 mA."
},
{
"number": "7",
"name": "INT",
"type": "output",
"description": "Open-drain status output that pulls low during charging and sends a 128-μs pulse on faults; connect to a logic rail through a 100-kΩ resistor."
},
{
"number": "8",
"name": "STAT",
"type": "output",
"description": "Open-drain status output that pulls low during charging and sends a 128-μs pulse on faults; pull up through an LED or a 10-kΩ resistor."
},
{
"number": "9",
"name": "TS",
"type": "input",
"description": "Battery pack NTC monitor input connected to the center tap of a resistor divider from DRV to GND, with 4 JEITA thresholds on BQ24161B only; connect to DRV to disable."
},
{
"number": "10",
"name": "BGATE",
"type": "output",
"description": "Gate drive for an external P-channel discharge MOSFET; low during high impedance mode and when no input is connected."
},
{
"number": "11",
"name": "BAT",
"type": "bidirectional",
"description": "Battery connection to the positive battery terminal; bypass to GND with at least a 1-μF capacitor."
},
{
"number": "12",
"name": "BAT",
"type": "bidirectional",
"description": "Battery connection to the positive battery terminal; bypass to GND with at least a 1-μF capacitor."
},
{
"number": "13",
"name": "SYS",
"type": "power_out",
"description": "System voltage sense and charger FET connection; connect at the output bulk capacitors and bypass with at least 10 μF (47 μF recommended)."
},
{
"number": "14",
"name": "SYS",
"type": "power_out",
"description": "System voltage sense and charger FET connection; connect at the output bulk capacitors and bypass with at least 10 μF (47 μF recommended)."
},
{
"number": "15",
"name": "PGND",
"type": "power_in",
"description": "Ground terminal; connect to the thermal pad and the ground plane of the circuit, and it must be grounded at all times."
},
{
"number": "16",
"name": "PGND",
"type": "power_in",
"description": "Ground terminal; connect to the thermal pad and the ground plane of the circuit, and it must be grounded at all times."
},
{
"number": "17",
"name": "PGND",
"type": "power_in",
"description": "Ground terminal; connect to the thermal pad and the ground plane of the circuit, and it must be grounded at all times."
},
{
"number": "18",
"name": "SW",
"type": "output",
"description": "Inductor connection; connect to the switched side of the external inductor."
},
{
"number": "19",
"name": "BOOT",
"type": "input",
"description": "High-side MOSFET gate driver supply; connect a 0.01-μF ceramic capacitor (rated above 10 V) from BOOT to SW."
},
{
"number": "20",
"name": "PMIDI",
"type": "power_out",
"description": "Reverse blocking and high-side MOSFET connection point for the high-power IN input; bypass with at least 4.7 μF, and the output is not current limited."
},
{
"number": "21",
"name": "IN",
"type": "power_in",
"description": "Input power supply from the external DC supply (rated 20 V absolute max, 4.2 V to 10 V operating for BQ24161); bypass to PGND with at least 1 μF."
},
{
"number": "22",
"name": "USB",
"type": "power_in",
"description": "USB input power supply from an AC adapter or USB port (4.2 V to 6 V operating); bypass to PGND with at least 1 μF."
},
{
"number": "23",
"name": "PMIDU",
"type": "power_out",
"description": "Reverse blocking and high-side MOSFET connection point for the USB input; bypass with at least 4.7 μF, and the output is not current limited."
},
{
"number": "24",
"name": "CD",
"type": "input",
"description": "Hardware chip disable input: high places the device in high-z mode, low is normal operation; do not leave unconnected."
},
{
"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-sonnet-5-5",
"primary_mode": "text",
"consensus_model": "claude-opus-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: Pin 1 is N.C. on BQ24161 per the top-view figure text; the pin table only shows the D– pin 1 entry f; The datasheet labels the exposed pad 'Pad' with no number; the actual pad designator is not printed.; The table lists SYS, BOOT, PMIDI and PMIDU with I/O directions that don't map directly to ERC power ",
"exposed pad 25 added from the footprint",
"dropped thermal pad ['EP'] absent from footprint"
],
"pages_sent": 14,
"cost_usd": 0.3134,
"at": "2026-11-02T19:22:04"
},
"datasheet": {
"url": "https://www.ti.com/lit/ds/symlink/bq24161rger.pdf",
"pages": 54,
"sha256": "5c151470748871c8",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 25,
"described": 25,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "bq24161rger.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
4,
4,
0.77
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "096fc110543e6d324c5120c2d38e3dca87a389da9b6fac234f1fe40856295ef4",
"checked": "2026-11-02",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "bq24161rger-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
4,
4,
0.77
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "e1b4e576253f0cc183a7b3c56e80ecc2eefe24d3e47d8aefd7860588782002ea",
"checked": "2026-11-02",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
],
"package_dims": {
"package_code": "RGE0024H",
"source_page": 51,
"D": {
"nom_mm": 4,
"range_mm": [
3.9,
4.1
]
},
"E1": {
"nom_mm": 4,
"range_mm": [
3.9,
4.1
]
},
"e": {
"nom_mm": 0.5,
"range_mm": [
null,
null
]
},
"A": {
"nom_mm": 1,
"range_mm": [
null,
1
]
},
"source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
"model_check": {
"file": "bq24161rger.step",
"verdict": "PASS",
"reasons": [
"height within the datasheet's package drawing"
],
"by": "factory/package_fit.py"
}
}
},
"metadata": {
"specs": {
"Manufacturer": "Texas Instruments",
"Package": "VQFN-24-EP(4x4)",
"Category": "Power Supply Chip",
"Pins": "25"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "5c151470748871c83508bf55259c2689ed2c165adbeb4536a683a11a52b78c3a",
"rows": [
{
"name": "System regulation voltage, charge enabled, VBAT < VMINSYS",
"symbol": "VSYS(REG)",
"kind": "electrical",
"unit": "V",
"min": 3.6,
"typ": 3.7,
"max": 3.82,
"conditions": "Charge Enabled, VBAT < VMINSYS, BQ24160, 1, 1B, 8",
"source_page": 8,
"source": "datasheet"
},
{
"name": "System regulation voltage, battery FET off",
"symbol": "VSYS(REG)",
"kind": "electrical",
"unit": "% above VBATREG",
"min": 1.5,
"typ": 3,
"max": 4.17,
"conditions": "Battery FET turned off (Charge Disabled, TS Fault or Charging Terminated); VBATREG + x%",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Minimum system regulation voltage",
"symbol": "VMINSYS",
"kind": "electrical",
"unit": "V",
"min": 3.4,
"typ": 3.5,
"max": 3.62,
"conditions": "Charge enabled, VBAT < VMINSYS, Input current limit or VINDPM active, BQ24160, 1, 1B, 8",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Battery charger MOSFET on-resistance",
"symbol": "RON(BAT-SYS)",
"kind": "electrical",
"unit": "mΩ",
"min": null,
"typ": 50,
"max": 70,
"conditions": "Measured from BAT to SYS, VBAT = 4.2V, RGE pkg",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Charge voltage programmable range",
"symbol": "VBATREG",
"kind": "electrical",
"unit": "V",
"min": 3.5,
"typ": null,
"max": 4.44,
"conditions": "Operating in voltage regulation, Programmable range",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Voltage regulation accuracy",
"symbol": "VBATREG",
"kind": "tolerance",
"unit": "%",
"min": -1,
"typ": null,
"max": 1,
"conditions": "Operating in voltage regulation",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Fast charge current range",
"symbol": "ICHARGE",
"kind": "electrical",
"unit": "mA",
"min": 550,
"typ": null,
"max": 2500,
"conditions": "VBATSHRT ≤ VBAT < VBAT(REG) programmable range",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Fast charge current accuracy",
"symbol": "ICHARGE",
"kind": "tolerance",
"unit": "%",
"min": -10,
"typ": null,
"max": 10,
"conditions": "0°C to 125°C",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Battery short circuit threshold",
"symbol": "VBATSHRT",
"kind": "electrical",
"unit": "V",
"min": 1.9,
"typ": 2,
"max": 2.1,
"conditions": "100mV Hysteresis, BQ24161, 3, 8",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Termination charge current accuracy",
"symbol": "ITERM",
"kind": "tolerance",
"unit": "%",
"min": -40,
"typ": null,
"max": 40,
"conditions": "ITERM = 50mA",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Termination charge current accuracy",
"symbol": "ITERM",
"kind": "tolerance",
"unit": "%",
"min": -20,
"typ": null,
"max": 20,
"conditions": "ITERM = 100mA",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Termination charge current accuracy",
"symbol": "ITERM",
"kind": "tolerance",
"unit": "%",
"min": -15,
"typ": null,
"max": 15,
"conditions": "ITERM ≥ 150mA",
"source_page": 8,
"source": "datasheet"
},
{
"name": "USB input current limit",
"symbol": "IIN_USB",
"kind": "electrical",
"unit": "mA",
"min": 90,
"typ": 95,
"max": 100,
"conditions": "USB charge mode, VUSB = 5V, IUSBLIM = USB100",
"source_page": 9,
"source": "datasheet"
},
{
"name": "USB input current limit",
"symbol": "IIN_USB",
"kind": "electrical",
"unit": "mA",
"min": 450,
"typ": 475,
"max": 500,
"conditions": "USB charge mode, VUSB = 5V, IUSBLIM = USB500",
"source_page": 9,
"source": "datasheet"
},
{
"name": "USB input current limit",
"symbol": "IIN_USB",
"kind": "electrical",
"unit": "mA",
"min": 1250,
"typ": 1400,
"max": 1500,
"conditions": "USB charge mode, VUSB = 5V, IUSBLIM = 1.5A",
"source_page": 9,
"source": "datasheet"
},
{
"name": "IN input current limit",
"symbol": "IIN_IN",
"kind": "electrical",
"unit": "A",
"min": 1.35,
"typ": 1.5,
"max": 1.65,
"conditions": "IN charge mode, VIN = 5V, IINLIM = 1.5A",
"source_page": 9,
"source": "datasheet"
},
{
"name": "IN input current limit",
"symbol": "IIN_IN",
"kind": "electrical",
"unit": "A",
"min": 2.3,
"typ": 2.5,
"max": 2.8,
"conditions": "IN charge mode, VIN = 5V, IINLIM = 2.5A",
"source_page": 9,
"source": "datasheet"
},
{
"name": "Input based DPM threshold range",
"symbol": "VIN_DPM",
"kind": "electrical",
"unit": "V",
"min": 4.2,
"typ": null,
"max": 4.76,
"conditions": "Charge mode, programmable via I2C, both inputs",
"source_page": 9,
"source": "datasheet"
},
{
"name": "VIN_DPM threshold accuracy",
"symbol": "VIN_DPM",
"kind": "tolerance",
"unit": "%",
"min": -2,
"typ": null,
"max": 2,
"conditions": "",
"source_page": 9,
"source": "datasheet"
},
{
"name": "Internal bias regulator voltage",
"symbol": "VDRV",
"kind": "electrical",
"unit": "V",
"min": 5,
"typ": 5.2,
"max": 5.45,
"conditions": "VSUPPLY > 5.45V",
"source_page": 9,
"source": "datasheet"
},
{
"name": "IC active threshold voltage",
"symbol": "VUVLO",
"kind": "electrical",
"unit": "V",
"min": 3.6,
"typ": 3.8,
"max": 4,
"conditions": "VIN rising",
"source_page": 9,
"source": "datasheet"
},
{
"name": "Sleep-mode entry threshold",
"symbol": "VSLP",
"kind": "electrical",
"unit": "mV",
"min": 0,
"typ": 40,
"max": 100,
"conditions": "2.0V ≤VBAT ≤VBATREG, VIN falling",
"source_page": 9,
"source": "datasheet"
},
{
"name": "Sleep-mode exit hysteresis",
"symbol": "VSLP_EXIT",
"kind": "electrical",
"unit": "mV",
"min": 40,
"typ": 100,
"max": 175,
"conditions": "2.0V ≤VBAT ≤VBATREG",
"source_page": 9,
"source": "datasheet"
},
{
"name": "USB input supply OVP threshold",
"symbol": "VOVP",
"kind": "electrical",
"unit": "V",
"min": 6.3,
"typ": 6.5,
"max": 6.7,
"conditions": "USB, VUSB Rising",
"source_page": 9,
"source": "datasheet"
},
{
"name": "IN input supply OVP threshold",
"symbol": "VOVP",
"kind": "electrical",
"unit": "V",
"min": 10.3,
"typ": 10.5,
"max": 10.7,
"conditions": "IN, VIN Rising (BQ24160/1/1B/3)",
"source_page": 9,
"source": "datasheet"
},
{
"name": "Battery OVP threshold voltage",
"symbol": "VBOVP",
"kind": "electrical",
"unit": "V",
"min": 1.025,
"typ": 1.05,
"max": 1.075,
"conditions": "VBAT threshold over VOREG to turn off charger during charge; × VBATREG",
"source_page": 9,
"source": "datasheet"
},
{
"name": "Cycle-by-cycle current limit",
"symbol": "ILIMIT",
"kind": "electrical",
"unit": "A",
"min": 4.1,
"typ": 4.9,
"max": 5.6,
"conditions": "VSYS shorted",
"source_page": 9,
"source": "datasheet"
},
{
"name": "Safety timer accuracy",
"symbol": "",
"kind": "tolerance",
"unit": "%",
"min": -20,
"typ": null,
"max": 20,
"conditions": "BQ24160/1/1B/3 Only",
"source_page": 10,
"source": "datasheet"
},
{
"name": "Reverse blocking MOSFET on-resistance (USB to PMIDU)",
"symbol": "",
"kind": "electrical",
"unit": "mΩ",
"min": null,
"typ": 95,
"max": 175,
"conditions": "IIN_LIMIT = 500mA, Measured from USB to PMIDU",
"source_page": 10,
"source": "datasheet"
},
{
"name": "Reverse blocking MOSFET on-resistance (IN to PMIDI)",
"symbol": "",
"kind": "electrical",
"unit": "mΩ",
"min": null,
"typ": 45,
"max": 80,
"conditions": "IIN_LIMIT = 500mA, Measured from IN to PMIDI",
"source_page": 10,
"source": "datasheet"
},
{
"name": "Top switching MOSFET on-resistance (PMIDU to SW)",
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