component
BQ24259RGER
Public Made by Adomby adom
Texas Instruments Battery Management, VQFN-24-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+62@@ -0,0 +1,62 @@+# BQ24259RGER++**Texas Instruments** · Battery Management · VQFN-24-EP(4x4)++BQ24259RGER from Texas Instruments, in a VQFN-24-EP(4x4). Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | VBUS | power_in | Charger input voltage; internal n-channel reverse-blocking MOSFET (RBFET) is connected between VBUS and PMID with VBUS on source. |+| 2 | PSEL | input | Power source selection input; HIGH indicates USB host source, LOW indicates adapter source. |+| 3 | PG | output | Open-drain active-low power-good indicator; LOW indicates good input source when voltage is between UVLO and ACOV, above SLEEP threshold, and current limit is above 30 mA. |+| 4 | STAT | output | Open-drain charge status output; LOW indicates charge in progress, HIGH indicates charge complete or disabled, blinking at 1 Hz during fault. |+| 5 | SCL | input | I2C interface clock input; connect to logic rail through 10-kΩ resistor. |+| 6 | SDA | bidirectional | I2C interface data bidirectional line; connect to logic rail through 10-kΩ resistor. |+| 7 | INT | output | Open-drain interrupt output; sends 256-µs active-low pulse to host to report charger device status and fault. |+| 8 | OTG | input | Digital USB current limit selection pin during buck mode and active-high enable pin during boost mode; in buck mode with PSEL=High, OTG=High sets IIN to 500 mA, OTG=Low sets to 100 mA. |+| 9 | CE | input | Active-low Charge Enable pin; battery charging is enabled when REG01[5:4] = 01 and CE pin is Low. |+| 10 | ILIM | input | Input current limit setting pin; sets maximum input current limit by regulating ILIM voltage at 1 V with external resistor from ILIM to ground. |+| 11 | TS | input | Analog temperature qualification voltage input; connect negative temperature coefficient thermistor to monitor battery temperature; charge suspends when out of range. |+| 12 | QON | input | BATFET enable control in shipping mode; logic low-to-high transition with minimum 2 ms high level turns on BATFET to exit shipping mode. |+| 13 | BAT | power_in | Battery connection point to positive pin of battery pack; internal BATFET is connected between BAT and SYS. |+| 14 | BAT | power_in | Battery connection point to positive pin of battery pack; internal BATFET is connected between BAT and SYS. |+| 15 | SYS | power_in | System connection point; internal BATFET is connected between BAT and SYS; switch-mode converter maintains SYS above minimum system voltage setting when battery drops below threshold. |+| 16 | SYS | power_in | System connection point; internal BATFET is connected between BAT and SYS; switch-mode converter maintains SYS above minimum system voltage setting when battery drops below threshold. |+| 17 | PGND | power_in | Power ground connection for high-current power converter node; internally connected to source of n-channel LSFET; connect directly to ground of input and output capacitors. |+| 18 | PGND | power_in | Power ground connection for high-current power converter node; internally connected to source of n-channel LSFET; connect directly to ground of input and output capacitors. |+| 19 | SW | output | Switching node connecting to output inductor; internally connected to source of n-channel HSFET and drain of n-channel LSFET. |+| 20 | SW | output | Switching node connecting to output inductor; internally connected to source of n-channel HSFET and drain of n-channel LSFET. |+| 21 | BTST | power_out | PWM high-side driver positive supply output; internally connected to anode of bootstrap diode; connect 0.047-µF bootstrap capacitor from SW to BTST. |+| 22 | REGN | power_out | PWM low-side driver positive supply output; internally connected to cathode of bootstrap diode; serves as bias rail for TS pin. |+| 23 | PMID | output | Connected to drain of reverse-blocking MOSFET and drain of high-side MOSFET; requires 8.2 µF or more capacitance from PMID to PGND. |+| 24 | VBUS | power_in | Charger input voltage; internal n-channel reverse-blocking MOSFET (RBFET) is connected between VBUS and PMID with VBUS on source. |+| 25 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | VQFN-24-EP(4x4) |+| Category | Power Management (PMIC) |+| Pins | 25 |++## CAD (KiCad official)++- Symbol: `BQ24259RGER`+- Footprint: `Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.6x2.6mm`+- 3D model: VQFN-24-EP(4x4) (KiCad packages3D, STEP)+- 3D model files: `bq24259rger-etched.step` / `bq24259rger-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bq24259rger.step` / `bq24259rger.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/bq24259) (49 pp, sha256 `32cbff192784f69a`, retrieved 2026-09-22, tier: lcsc)+- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/bq24259rger-datasheet.pdf)
page.jsonadded+247@@ -0,0 +1,247 @@+{+ "slug": "bq24259rger",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Battery Management, VQFN-24-EP(4x4). Datasheet-verified pinout, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power management (pmic)",+ "bq24259rger",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "bq24259rger.kicad_sym",+ "bq24259rger.kicad_mod",+ "bq24259rger.glb",+ "bq24259rger.step",+ "bq24259rger.lbr",+ "docs/hero.png",+ "docs/bq24259rger-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "BQ24259RGER",+ "manufacturer": "Texas Instruments",+ "package": "VQFN-24-EP(4x4)",+ "pin_count": 25,+ "category": "Power Management (PMIC)",+ "subcategory": "Battery Management",+ "datasheet": "https://www.ti.com/cn/lit/gpn/bq24259",+ "parts": {+ "symbol": "bq24259rger.kicad_sym",+ "footprint": "bq24259rger.kicad_mod",+ "model_3d": "bq24259rger-etched.glb",+ "model_3d_plain": "bq24259rger.glb",+ "model_3d_step": "bq24259rger-etched.step",+ "model_3d_step_plain": "bq24259rger.step",+ "lbr": "bq24259rger.lbr"+ },+ "distributor_links": {+ "lcsc": "C473366"+ },+ "pins": [+ {+ "number": "1",+ "name": "VBUS",+ "type": "power_in",+ "description": "Charger input voltage; internal n-channel reverse-blocking MOSFET (RBFET) is connected between VBUS and PMID with VBUS on source."+ },+ {+ "number": "2",+ "name": "PSEL",+ "type": "input",+ "description": "Power source selection input; HIGH indicates USB host source, LOW indicates adapter source."+ },+ {+ "number": "3",+ "name": "PG",+ "type": "output",+ "description": "Open-drain active-low power-good indicator; LOW indicates good input source when voltage is between UVLO and ACOV, above SLEEP threshold, and current limit is above 30 mA."+ },+ {+ "number": "4",+ "name": "STAT",+ "type": "output",+ "description": "Open-drain charge status output; LOW indicates charge in progress, HIGH indicates charge complete or disabled, blinking at 1 Hz during fault."+ },+ {+ "number": "5",+ "name": "SCL",+ "type": "input",+ "description": "I2C interface clock input; connect to logic rail through 10-kΩ resistor."+ },+ {+ "number": "6",+ "name": "SDA",+ "type": "bidirectional",+ "description": "I2C interface data bidirectional line; connect to logic rail through 10-kΩ resistor."+ },+ {+ "number": "7",+ "name": "INT",+ "type": "output",+ "description": "Open-drain interrupt output; sends 256-µs active-low pulse to host to report charger device status and fault."+ },+ {+ "number": "8",+ "name": "OTG",+ "type": "input",+ "description": "Digital USB current limit selection pin during buck mode and active-high enable pin during boost mode; in buck mode with PSEL=High, OTG=High sets IIN to 500 mA, OTG=Low sets to 100 mA."+ },+ {+ "number": "9",+ "name": "CE",+ "type": "input",+ "description": "Active-low Charge Enable pin; battery charging is enabled when REG01[5:4] = 01 and CE pin is Low."+ },+ {+ "number": "10",+ "name": "ILIM",+ "type": "input",+ "description": "Input current limit setting pin; sets maximum input current limit by regulating ILIM voltage at 1 V with external resistor from ILIM to ground."+ },+ {+ "number": "11",+ "name": "TS",+ "type": "input",+ "description": "Analog temperature qualification voltage input; connect negative temperature coefficient thermistor to monitor battery temperature; charge suspends when out of range."+ },+ {+ "number": "12",+ "name": "QON",+ "type": "input",+ "description": "BATFET enable control in shipping mode; logic low-to-high transition with minimum 2 ms high level turns on BATFET to exit shipping mode."+ },+ {+ "number": "13",+ "name": "BAT",+ "type": "power_in",+ "description": "Battery connection point to positive pin of battery pack; internal BATFET is connected between BAT and SYS."+ },+ {+ "number": "14",+ "name": "BAT",+ "type": "power_in",+ "description": "Battery connection point to positive pin of battery pack; internal BATFET is connected between BAT and SYS."+ },+ {+ "number": "15",+ "name": "SYS",+ "type": "power_in",+ "description": "System connection point; internal BATFET is connected between BAT and SYS; switch-mode converter maintains SYS above minimum system voltage setting when battery drops below threshold."+ },+ {+ "number": "16",+ "name": "SYS",+ "type": "power_in",+ "description": "System connection point; internal BATFET is connected between BAT and SYS; switch-mode converter maintains SYS above minimum system voltage setting when battery drops below threshold."+ },+ {+ "number": "17",+ "name": "PGND",+ "type": "power_in",+ "description": "Power ground connection for high-current power converter node; internally connected to source of n-channel LSFET; connect directly to ground of input and output capacitors."+ },+ {+ "number": "18",+ "name": "PGND",+ "type": "power_in",+ "description": "Power ground connection for high-current power converter node; internally connected to source of n-channel LSFET; connect directly to ground of input and output capacitors."+ },+ {+ "number": "19",+ "name": "SW",+ "type": "output",+ "description": "Switching node connecting to output inductor; internally connected to source of n-channel HSFET and drain of n-channel LSFET."+ },+ {+ "number": "20",+ "name": "SW",+ "type": "output",+ "description": "Switching node connecting to output inductor; internally connected to source of n-channel HSFET and drain of n-channel LSFET."+ },+ {+ "number": "21",+ "name": "BTST",+ "type": "power_out",+ "description": "PWM high-side driver positive supply output; internally connected to anode of bootstrap diode; connect 0.047-µF bootstrap capacitor from SW to BTST."+ },+ {+ "number": "22",+ "name": "REGN",+ "type": "power_out",+ "description": "PWM low-side driver positive supply output; internally connected to cathode of bootstrap diode; serves as bias rail for TS pin."+ },+ {+ "number": "23",+ "name": "PMID",+ "type": "output",+ "description": "Connected to drain of reverse-blocking MOSFET and drain of high-side MOSFET; requires 8.2 µF or more capacitance from PMID to PGND."+ },+ {+ "number": "24",+ "name": "VBUS",+ "type": "power_in",+ "description": "Charger input voltage; internal n-channel reverse-blocking MOSFET (RBFET) is connected between VBUS and PMID with VBUS on source."+ },+ {+ "number": "25",+ "name": "EP",+ "type": "passive",+ "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.2",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.2",+ "primary_model": "claude-haiku-4-5-20251001",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "extractor flagged: Thermal Pad (Exposed Pad) is not explicitly numbered in the datasheet; assigned identifier 'EP' per ",+ "exposed pad 25 added from the footprint",+ "dropped thermal pad ['EP'] absent from footprint"+ ],+ "pages_sent": 49,+ "cost_usd": 0.6352,+ "at": "2026-09-22T23:41:58"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/bq24259",+ "pages": 49,+ "sha256": "32cbff192784f69a",+ "source_tier": "lcsc"+ },+ "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"+ }+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}