component
BQ25892RTWR
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Texas Instruments Battery Management, WQFN-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 @@+# BQ25892RTWR++**Texas Instruments** · Battery Management · WQFN-24-EP(4x4)++BQ25892RTWR from Texas Instruments, in a WQFN-24-EP(4x4). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | VBUS | power_in | Charger input voltage accepting 3.9V to 14V input range with internal reverse-blocking MOSFET (RBFET) connected between VBUS and PMID. |+| 2 | PSEL | input | Power source selection digital input: high indicates USB host source (500mA), low indicates adapter source (3.25A). |+| 3 | PG | output | Open drain active low power good indicator pulsing low when VBUS is within operating range above sleep threshold with source current exceeding 30mA. |+| 4 | STAT | output | Open drain charge status output indicating charging in progress (low), charging complete or disabled (high), or fault condition (blinking at 1Hz). |+| 5 | SCL | input | I2C interface clock input requiring 10kΩ pull-up to logic rail for serial communication at 100kHz to 400kHz. |+| 6 | SDA | bidirectional | I2C interface bidirectional data line requiring 10kΩ pull-up to logic rail supporting standard and fast mode I2C protocols. |+| 7 | INT | output | Open-drain interrupt output pulsing low for 256µs to notify host of charger device status changes or fault events. |+| 8 | OTG | input | Active high digital input enabling boost mode when OTG_CONFIG=1 for USB On-The-Go operation supporting up to 2.4A output current. |+| 9 | CE | input | Active low digital input enabling battery charging when CHG_CONFIG=1 and CE pin is low for up to 5A fast charge current. |+| 10 | ILIM | input | Analog current limit input regulating ILIM voltage at 0.8V for maximum input current IINMAX = KILIM/RILIM ranging from 100mA to 3.25A. |+| 11 | TS | input | Analog temperature sense input accepting negative temperature coefficient thermistor (103AT recommended) for JEITA-compliant charging monitoring 0°C to 60°C. |+| 12 | QON | input | Digital input with 200kΩ internal pull-up enabling BATFET when low for ≥1.25s to exit shipping mode or ≥12s to trigger full system reset. |+| 13 | BAT | power_in | Battery positive terminal connection point for single-cell Li-Ion or Li-polymer battery up to 4.608V with integrated BATFET providing 11mΩ on-resistance. |+| 14 | BAT | power_in | Battery positive terminal connection point for single-cell Li-Ion or Li-polymer battery up to 4.608V with integrated BATFET providing 11mΩ on-resistance. |+| 15 | SYS | power_out | System power output connection point maintaining minimum system voltage regulation (3.0V to 3.7V above ground) supporting up to 5A continuous output current. |+| 16 | SYS | power_out | System power output connection point maintaining minimum system voltage regulation (3.0V to 3.7V above ground) supporting up to 5A continuous output current. |+| 17 | PGND | power_in | Power ground connection for high-current buck converter switching node, internally connected to LSFET source requiring direct ground connection. |+| 18 | PGND | power_in | Power ground connection for high-current buck converter switching node, internally connected to LSFET source requiring direct ground connection. |+| 19 | SW | power_in | Switching node output connecting to LC filter inductor, internally connected to HSFET source and LSFET drain with bootstrap capacitor connection to BTST. |+| 20 | SW | power_in | Switching node output connecting to LC filter inductor, internally connected to HSFET source and LSFET drain with bootstrap capacitor connection to BTST. |+| 21 | BTST | power_in | Bootstrap supply for high-side MOSFET gate drive connected to bootstrap diode anode requiring 47nF capacitor to SW for proper gate drive operation. |+| 22 | REGN | power_out | PWM low-side driver supply output and TS pin bias rail regulated at 4.7V to 6.4V with 50mA current limit, requiring 4.7µF output capacitor to ground. |+| 23 | PMID | output | Intermediate power node output connected to reverse-blocking MOSFET (RBFET) drain and high-side MOSFET (HSFET) drain requiring 1µF capacitor to PGND. |+| 24 | NC | unconnected | No connect pin; exposed PowerPAD beneath IC for thermal dissipation requiring solder connection to board ground with vias to ground plane. |+| 25 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | WQFN-24-EP(4x4) |+| Category | Power Management (PMIC) |+| Pins | 25 |++## CAD (KiCad official)++- Symbol: `BQ25892RTWR`+- Footprint: `Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.6x2.6mm`+- 3D model: WQFN-24-EP(4x4) (KiCad packages3D, STEP)+- 3D model files: `bq25892rtwr-etched.step` / `bq25892rtwr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bq25892rtwr.step` / `bq25892rtwr.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/bq25892) (70 pp, sha256 `2e8c133466478bb3`, retrieved 2026-09-24, 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/bq25892rtwr-datasheet.pdf)
page.jsonadded+245@@ -0,0 +1,245 @@+{+ "slug": "bq25892rtwr",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Battery Management, WQFN-24-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power management (pmic)",+ "bq25892rtwr",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "bq25892rtwr.kicad_sym",+ "bq25892rtwr.kicad_mod",+ "bq25892rtwr.glb",+ "bq25892rtwr.step",+ "bq25892rtwr.lbr",+ "docs/hero.png",+ "docs/bq25892rtwr-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "BQ25892RTWR",+ "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/bq25892",+ "parts": {+ "symbol": "bq25892rtwr.kicad_sym",+ "footprint": "bq25892rtwr.kicad_mod",+ "model_3d": "bq25892rtwr-etched.glb",+ "model_3d_plain": "bq25892rtwr.glb",+ "model_3d_step": "bq25892rtwr-etched.step",+ "model_3d_step_plain": "bq25892rtwr.step",+ "lbr": "bq25892rtwr.lbr"+ },+ "distributor_links": {+ "lcsc": "C165480"+ },+ "pins": [+ {+ "number": "1",+ "name": "VBUS",+ "type": "power_in",+ "description": "Charger input voltage accepting 3.9V to 14V input range with internal reverse-blocking MOSFET (RBFET) connected between VBUS and PMID."+ },+ {+ "number": "2",+ "name": "PSEL",+ "type": "input",+ "description": "Power source selection digital input: high indicates USB host source (500mA), low indicates adapter source (3.25A)."+ },+ {+ "number": "3",+ "name": "PG",+ "type": "output",+ "description": "Open drain active low power good indicator pulsing low when VBUS is within operating range above sleep threshold with source current exceeding 30mA."+ },+ {+ "number": "4",+ "name": "STAT",+ "type": "output",+ "description": "Open drain charge status output indicating charging in progress (low), charging complete or disabled (high), or fault condition (blinking at 1Hz)."+ },+ {+ "number": "5",+ "name": "SCL",+ "type": "input",+ "description": "I2C interface clock input requiring 10kΩ pull-up to logic rail for serial communication at 100kHz to 400kHz."+ },+ {+ "number": "6",+ "name": "SDA",+ "type": "bidirectional",+ "description": "I2C interface bidirectional data line requiring 10kΩ pull-up to logic rail supporting standard and fast mode I2C protocols."+ },+ {+ "number": "7",+ "name": "INT",+ "type": "output",+ "description": "Open-drain interrupt output pulsing low for 256µs to notify host of charger device status changes or fault events."+ },+ {+ "number": "8",+ "name": "OTG",+ "type": "input",+ "description": "Active high digital input enabling boost mode when OTG_CONFIG=1 for USB On-The-Go operation supporting up to 2.4A output current."+ },+ {+ "number": "9",+ "name": "CE",+ "type": "input",+ "description": "Active low digital input enabling battery charging when CHG_CONFIG=1 and CE pin is low for up to 5A fast charge current."+ },+ {+ "number": "10",+ "name": "ILIM",+ "type": "input",+ "description": "Analog current limit input regulating ILIM voltage at 0.8V for maximum input current IINMAX = KILIM/RILIM ranging from 100mA to 3.25A."+ },+ {+ "number": "11",+ "name": "TS",+ "type": "input",+ "description": "Analog temperature sense input accepting negative temperature coefficient thermistor (103AT recommended) for JEITA-compliant charging monitoring 0°C to 60°C."+ },+ {+ "number": "12",+ "name": "QON",+ "type": "input",+ "description": "Digital input with 200kΩ internal pull-up enabling BATFET when low for ≥1.25s to exit shipping mode or ≥12s to trigger full system reset."+ },+ {+ "number": "13",+ "name": "BAT",+ "type": "power_in",+ "description": "Battery positive terminal connection point for single-cell Li-Ion or Li-polymer battery up to 4.608V with integrated BATFET providing 11mΩ on-resistance."+ },+ {+ "number": "14",+ "name": "BAT",+ "type": "power_in",+ "description": "Battery positive terminal connection point for single-cell Li-Ion or Li-polymer battery up to 4.608V with integrated BATFET providing 11mΩ on-resistance."+ },+ {+ "number": "15",+ "name": "SYS",+ "type": "power_out",+ "description": "System power output connection point maintaining minimum system voltage regulation (3.0V to 3.7V above ground) supporting up to 5A continuous output current."+ },+ {+ "number": "16",+ "name": "SYS",+ "type": "power_out",+ "description": "System power output connection point maintaining minimum system voltage regulation (3.0V to 3.7V above ground) supporting up to 5A continuous output current."+ },+ {+ "number": "17",+ "name": "PGND",+ "type": "power_in",+ "description": "Power ground connection for high-current buck converter switching node, internally connected to LSFET source requiring direct ground connection."+ },+ {+ "number": "18",+ "name": "PGND",+ "type": "power_in",+ "description": "Power ground connection for high-current buck converter switching node, internally connected to LSFET source requiring direct ground connection."+ },+ {+ "number": "19",+ "name": "SW",+ "type": "power_in",+ "description": "Switching node output connecting to LC filter inductor, internally connected to HSFET source and LSFET drain with bootstrap capacitor connection to BTST."+ },+ {+ "number": "20",+ "name": "SW",+ "type": "power_in",+ "description": "Switching node output connecting to LC filter inductor, internally connected to HSFET source and LSFET drain with bootstrap capacitor connection to BTST."+ },+ {+ "number": "21",+ "name": "BTST",+ "type": "power_in",+ "description": "Bootstrap supply for high-side MOSFET gate drive connected to bootstrap diode anode requiring 47nF capacitor to SW for proper gate drive operation."+ },+ {+ "number": "22",+ "name": "REGN",+ "type": "power_out",+ "description": "PWM low-side driver supply output and TS pin bias rail regulated at 4.7V to 6.4V with 50mA current limit, requiring 4.7µF output capacitor to ground."+ },+ {+ "number": "23",+ "name": "PMID",+ "type": "output",+ "description": "Intermediate power node output connected to reverse-blocking MOSFET (RBFET) drain and high-side MOSFET (HSFET) drain requiring 1µF capacitor to PGND."+ },+ {+ "number": "24",+ "name": "NC",+ "type": "unconnected",+ "description": "No connect pin; exposed PowerPAD beneath IC for thermal dissipation requiring solder connection to board ground with vias to ground plane."+ },+ {+ "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": [+ "exposed pad 25 added from the footprint"+ ],+ "pages_sent": 70,+ "cost_usd": 0.7479,+ "at": "2026-09-24T10:14:45"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/bq25892",+ "pages": 70,+ "sha256": "2e8c133466478bb3",+ "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]"+ }+}