component
BQ25890RTWT
Public Made by Adomby adom
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 @@+# BQ25890RTWT++**Texas Instruments** · Battery Management · WQFN-24-EP(4x4)++BQ25890RTWT 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 | Input supply voltage (3.9V to 14V); requires 1µF bypass capacitor to PGND. |+| 2 | D+ | bidirectional | USB D+ data line for port type detection via BC1.2 protocol. |+| 3 | D- | bidirectional | USB D- data line for port type detection via BC1.2 protocol. |+| 4 | STAT | output | Open-drain charge status indicator; LOW during charging, HIGH when complete, blinks 1Hz on fault. |+| 5 | SCL | input | I2C serial clock input; pull up with 10kΩ resistor to logic rail. |+| 6 | SDA | bidirectional | I2C serial data line; pull up with 10kΩ resistor to logic rail. |+| 7 | INT | output | Open-drain interrupt output; active-low 256µs pulse on device status or fault events. |+| 8 | OTG | input | Boost mode enable input (active HIGH); activates 5V USB OTG when OTG_CONFIG=1. |+| 9 | CE | input | Charge enable input (active LOW); charging enabled when CHG_CONFIG=1 and CE is LOW. |+| 10 | ILIM | input | Input current limit analog input; 0.8V reference sets maximum input current via resistor to ground. |+| 11 | TS | input | Temperature sensor analog input; connect 103AT-2 NTC thermistor for battery charge temperature monitoring. |+| 12 | QON | input | BATFET enable/reset control input (active LOW); exits shipping mode or performs system reset. |+| 13 | BAT | power_in | Battery positive terminal; internal BATFET connects to SYS; requires 10µF decoupling capacitor. |+| 14 | BAT | power_in | Battery positive terminal; internal BATFET connects to SYS; requires 10µF decoupling capacitor. |+| 15 | SYS | power_out | System power output regulated above 3.5V minimum or 100mV above battery voltage; requires 20µF capacitor. |+| 16 | SYS | power_out | System power output regulated above 3.5V minimum or 100mV above battery voltage; requires 20µF capacitor. |+| 17 | PGND | power_in | Power ground for high-current switching converter; connect to ground plane and input/output capacitor returns. |+| 18 | PGND | power_in | Power ground for high-current switching converter; connect to ground plane and input/output capacitor returns. |+| 19 | SW | power_out | Switching node (HSFET source and LSFET drain); connects to external inductor and 0.047µF bootstrap capacitor to BTST. |+| 20 | SW | power_out | Switching node (HSFET source and LSFET drain); connects to external inductor and 0.047µF bootstrap capacitor to BTST. |+| 21 | BTST | power_out | Bootstrap supply for high-side gate driver; connect 0.047µF capacitor between SW and this pin. |+| 22 | REGN | power_out | 6V low-side gate driver and temperature sensor bias supply output; requires 4.7µF (10V rated) capacitor to ground. |+| 23 | PMID | output | Input power distribution node (RBFET and HSFET drain connection); attach bypass capacitance to PGND. |+| 24 | DSEL | output | Open-drain D+/D- multiplexer selection output (active LOW); stays LOW if MaxCharge adapter detected. |+| 25 | PowerPAD | 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: `BQ25890RTWT`+- 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: `bq25890rtwt-etched.step` / `bq25890rtwt-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bq25890rtwt.step` / `bq25890rtwt.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 2026-10-07, 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 0.3`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-5-5` (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/bq25890rtwt-datasheet.pdf)
page.jsonadded+303@@ -0,0 +1,303 @@+{+ "slug": "bq25890rtwt",+ "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)",+ "bq25890rtwt",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "bq25890rtwt.kicad_sym",+ "bq25890rtwt.kicad_mod",+ "bq25890rtwt.glb",+ "bq25890rtwt.step",+ "bq25890rtwt.lbr",+ "docs/hero.png",+ "docs/bq25890rtwt-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "bq25890rtwt-hero.glb",+ "bq25890rtwt-hero.overlay.json"+ ],+ "component": {+ "mpn": "BQ25890RTWT",+ "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": "bq25890rtwt.kicad_sym",+ "footprint": "bq25890rtwt.kicad_mod",+ "model_3d": "bq25890rtwt-hero.glb",+ "model_3d_plain": "bq25890rtwt.glb",+ "model_3d_step": "bq25890rtwt-etched.step",+ "model_3d_step_plain": "bq25890rtwt.step",+ "lbr": "bq25890rtwt.lbr"+ },+ "distributor_links": {+ "lcsc": "C2869036",+ "digikey": "296-41130-2-ND",+ "mouser": "595-BQ25890RTWT"+ },+ "distributor_check": {+ "checked_at": "2026-10-07T07:24:38Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-41130-2-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "595-BQ25890RTWT",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "VBUS",+ "type": "power_in",+ "description": "Input supply voltage (3.9V to 14V); requires 1µF bypass capacitor to PGND."+ },+ {+ "number": "2",+ "name": "D+",+ "type": "bidirectional",+ "description": "USB D+ data line for port type detection via BC1.2 protocol."+ },+ {+ "number": "3",+ "name": "D-",+ "type": "bidirectional",+ "description": "USB D- data line for port type detection via BC1.2 protocol."+ },+ {+ "number": "4",+ "name": "STAT",+ "type": "output",+ "description": "Open-drain charge status indicator; LOW during charging, HIGH when complete, blinks 1Hz on fault."+ },+ {+ "number": "5",+ "name": "SCL",+ "type": "input",+ "description": "I2C serial clock input; pull up with 10kΩ resistor to logic rail."+ },+ {+ "number": "6",+ "name": "SDA",+ "type": "bidirectional",+ "description": "I2C serial data line; pull up with 10kΩ resistor to logic rail."+ },+ {+ "number": "7",+ "name": "INT",+ "type": "output",+ "description": "Open-drain interrupt output; active-low 256µs pulse on device status or fault events."+ },+ {+ "number": "8",+ "name": "OTG",+ "type": "input",+ "description": "Boost mode enable input (active HIGH); activates 5V USB OTG when OTG_CONFIG=1."+ },+ {+ "number": "9",+ "name": "CE",+ "type": "input",+ "description": "Charge enable input (active LOW); charging enabled when CHG_CONFIG=1 and CE is LOW."+ },+ {+ "number": "10",+ "name": "ILIM",+ "type": "input",+ "description": "Input current limit analog input; 0.8V reference sets maximum input current via resistor to ground."+ },+ {+ "number": "11",+ "name": "TS",+ "type": "input",+ "description": "Temperature sensor analog input; connect 103AT-2 NTC thermistor for battery charge temperature monitoring."+ },+ {+ "number": "12",+ "name": "QON",+ "type": "input",+ "description": "BATFET enable/reset control input (active LOW); exits shipping mode or performs system reset."+ },+ {+ "number": "13",+ "name": "BAT",+ "type": "power_in",+ "description": "Battery positive terminal; internal BATFET connects to SYS; requires 10µF decoupling capacitor."+ },+ {+ "number": "14",+ "name": "BAT",+ "type": "power_in",+ "description": "Battery positive terminal; internal BATFET connects to SYS; requires 10µF decoupling capacitor."+ },+ {+ "number": "15",+ "name": "SYS",+ "type": "power_out",+ "description": "System power output regulated above 3.5V minimum or 100mV above battery voltage; requires 20µF capacitor."+ },+ {+ "number": "16",+ "name": "SYS",+ "type": "power_out",+ "description": "System power output regulated above 3.5V minimum or 100mV above battery voltage; requires 20µF capacitor."+ },+ {+ "number": "17",+ "name": "PGND",+ "type": "power_in",+ "description": "Power ground for high-current switching converter; connect to ground plane and input/output capacitor returns."+ },+ {+ "number": "18",+ "name": "PGND",+ "type": "power_in",+ "description": "Power ground for high-current switching converter; connect to ground plane and input/output capacitor returns."+ },+ {+ "number": "19",+ "name": "SW",+ "type": "power_out",+ "description": "Switching node (HSFET source and LSFET drain); connects to external inductor and 0.047µF bootstrap capacitor to BTST."+ },+ {+ "number": "20",+ "name": "SW",+ "type": "power_out",+ "description": "Switching node (HSFET source and LSFET drain); connects to external inductor and 0.047µF bootstrap capacitor to BTST."+ },+ {+ "number": "21",+ "name": "BTST",+ "type": "power_out",+ "description": "Bootstrap supply for high-side gate driver; connect 0.047µF capacitor between SW and this pin."+ },+ {+ "number": "22",+ "name": "REGN",+ "type": "power_out",+ "description": "6V low-side gate driver and temperature sensor bias supply output; requires 4.7µF (10V rated) capacitor to ground."+ },+ {+ "number": "23",+ "name": "PMID",+ "type": "output",+ "description": "Input power distribution node (RBFET and HSFET drain connection); attach bypass capacitance to PGND."+ },+ {+ "number": "24",+ "name": "DSEL",+ "type": "output",+ "description": "Open-drain D+/D- multiplexer selection output (active LOW); stays LOW if MaxCharge adapter detected."+ },+ {+ "number": "25",+ "name": "PowerPAD",+ "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-haiku-4-5-20251001",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "exposed pad 25 added from the footprint",+ "dropped thermal pad ['EP'] absent from footprint"+ ],+ "pages_sent": 25,+ "cost_usd": 0.3007,+ "at": "2026-10-07T07:24:17"+ },+ "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"+ },+ "models_3d": [+ {+ "file": "bq25890rtwt.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": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "bq25890rtwt-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": "9fc20534d12507b68b0b3216daf1677de88df300cd6ca5bf9883c8331b1a8fde",+ "checked": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ]+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}