component
BQ25890RTWR
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 @@+# BQ25890RTWR++**Texas Instruments** · Battery Management · WQFN-24-EP(4x4)++BQ25890RTWR from Texas Instruments, in a WQFN-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 (3.9V to 14V) with integrated reverse-blocking MOSFET to PMID; place 1µF ceramic capacitor from VBUS to PGND close to IC. |+| 2 | D+ | bidirectional | USB data line positive for BC1.2 identification of charger type and adjustable high-voltage adapter detection. |+| 3 | D- | bidirectional | USB data line negative for BC1.2 identification of charger type and adjustable high-voltage adapter detection. |+| 4 | STAT | output | Open-drain charge status output pulled-HIGH externally; LOW indicates charging in progress, HIGH indicates charging complete or disabled. |+| 5 | SCL | input | I2C clock open-drain input; connect to logic rail (1.8V-3.3V) through 10kΩ pull-up resistor. |+| 6 | SDA | bidirectional | I2C data open-drain bidirectional line; connect to logic rail (1.8V-3.3V) through 10kΩ pull-up resistor. |+| 7 | INT | output | Open-drain interrupt output delivering active-LOW 256µs pulse for charger status changes and fault events; connect via 10kΩ pull-up. |+| 8 | OTG | input | Active-HIGH enable input for boost (OTG) mode; boost activates when OTG_CONFIG=1 and OTG pin HIGH. |+| 9 | CE | input | Active-LOW charge enable control input; charging enabled when CHG_CONFIG=1 and CE=LOW; must be pulled to logic level. |+| 10 | ILIM | input | Analog input for programmable input current limit; resistor from ILIM to GND sets maximum as IINMAX=KILIM/RILIM with 0.8V regulation threshold. |+| 11 | TS | input | Thermistor analog input for battery temperature monitoring with 103AT NTC thermistor; charge suspends outside configured temperature range. |+| 12 | QON | input | Battery FET control input with internal pull-up; LOW for 1s duration exits shipping mode, or LOW for 15s resets system when VBUS disconnected. |+| 13 | BAT | power_in | Battery positive terminal connection with integrated BATFET between BAT and SYS; place 10µF capacitor close to pin. |+| 14 | BAT | power_in | Battery positive terminal connection with integrated BATFET between BAT and SYS; place 10µF capacitor close to pin. |+| 15 | SYS | power_out | System output regulated above minimum voltage (3.0V-3.7V) by converter even with depleted battery; place 20µF capacitor close to pin. |+| 16 | SYS | power_out | System output regulated above minimum voltage (3.0V-3.7V) by converter even with depleted battery; place 20µF capacitor close to pin. |+| 17 | PGND | power_in | Power ground for high-current converter stages internally connected to LSFET source; connect directly to input/output capacitor grounds. |+| 18 | PGND | power_in | Power ground for high-current converter stages internally connected to LSFET source; connect directly to input/output capacitor grounds. |+| 19 | SW | output | PWM switching node connected to inductor output and LSFET source; place 0.047µF bootstrap capacitor from SW to BTST. |+| 20 | SW | output | PWM switching node connected to inductor output and LSFET source; place 0.047µF bootstrap capacitor from SW to BTST. |+| 21 | BTST | power_out | Bootstrap supply for high-side gate driver powered by internal bootstrap diode from SW node; connect 0.047µF bootstrap capacitor. |+| 22 | REGN | power_out | Internal LDO regulated output (5.6V-6.4V) powering gate drivers and TS bias; connect 4.7µF capacitor from REGN to analog GND close to IC. |+| 23 | PMID | output | Power management mid-point connected to RBFET drain and HSFET drain; place 1µF on VBUS-PGND and remaining input capacitance on PMID-PGND. |+| 24 | DSEL | output | Open-drain D+/D- detection multiplexer control output pulled-HIGH externally; driven LOW during D+/D- detection and held LOW for MaxCharge adapters. |+| 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: `BQ25890RTWR`+- Footprint: `Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.7x2.7mm`+- 3D model: WQFN-24-EP(4x4) (KiCad packages3D, STEP)+- 3D model files: `bq25890rtwr-etched.step` / `bq25890rtwr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bq25890rtwr.step` / `bq25890rtwr.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/bq25890) (70 pp, sha256 `2e8c133466478bb3`, 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-4-6` (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/bq25890rtwr-datasheet.pdf)
page.jsonadded+246@@ -0,0 +1,246 @@+{+ "slug": "bq25890rtwr",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Battery Management, WQFN-24-EP(4x4). Datasheet-verified pinout, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power management (pmic)",+ "bq25890rtwr",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "bq25890rtwr.kicad_sym",+ "bq25890rtwr.kicad_mod",+ "bq25890rtwr.glb",+ "bq25890rtwr.step",+ "bq25890rtwr.lbr",+ "docs/hero.png",+ "docs/bq25890rtwr-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "BQ25890RTWR",+ "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/bq25890",+ "parts": {+ "symbol": "bq25890rtwr.kicad_sym",+ "footprint": "bq25890rtwr.kicad_mod",+ "model_3d": "bq25890rtwr-etched.glb",+ "model_3d_plain": "bq25890rtwr.glb",+ "model_3d_step": "bq25890rtwr-etched.step",+ "model_3d_step_plain": "bq25890rtwr.step",+ "lbr": "bq25890rtwr.lbr"+ },+ "distributor_links": {+ "lcsc": "C130451"+ },+ "pins": [+ {+ "number": "1",+ "name": "VBUS",+ "type": "power_in",+ "description": "Charger input voltage (3.9V to 14V) with integrated reverse-blocking MOSFET to PMID; place 1µF ceramic capacitor from VBUS to PGND close to IC."+ },+ {+ "number": "2",+ "name": "D+",+ "type": "bidirectional",+ "description": "USB data line positive for BC1.2 identification of charger type and adjustable high-voltage adapter detection."+ },+ {+ "number": "3",+ "name": "D-",+ "type": "bidirectional",+ "description": "USB data line negative for BC1.2 identification of charger type and adjustable high-voltage adapter detection."+ },+ {+ "number": "4",+ "name": "STAT",+ "type": "output",+ "description": "Open-drain charge status output pulled-HIGH externally; LOW indicates charging in progress, HIGH indicates charging complete or disabled."+ },+ {+ "number": "5",+ "name": "SCL",+ "type": "input",+ "description": "I2C clock open-drain input; connect to logic rail (1.8V-3.3V) through 10kΩ pull-up resistor."+ },+ {+ "number": "6",+ "name": "SDA",+ "type": "bidirectional",+ "description": "I2C data open-drain bidirectional line; connect to logic rail (1.8V-3.3V) through 10kΩ pull-up resistor."+ },+ {+ "number": "7",+ "name": "INT",+ "type": "output",+ "description": "Open-drain interrupt output delivering active-LOW 256µs pulse for charger status changes and fault events; connect via 10kΩ pull-up."+ },+ {+ "number": "8",+ "name": "OTG",+ "type": "input",+ "description": "Active-HIGH enable input for boost (OTG) mode; boost activates when OTG_CONFIG=1 and OTG pin HIGH."+ },+ {+ "number": "9",+ "name": "CE",+ "type": "input",+ "description": "Active-LOW charge enable control input; charging enabled when CHG_CONFIG=1 and CE=LOW; must be pulled to logic level."+ },+ {+ "number": "10",+ "name": "ILIM",+ "type": "input",+ "description": "Analog input for programmable input current limit; resistor from ILIM to GND sets maximum as IINMAX=KILIM/RILIM with 0.8V regulation threshold."+ },+ {+ "number": "11",+ "name": "TS",+ "type": "input",+ "description": "Thermistor analog input for battery temperature monitoring with 103AT NTC thermistor; charge suspends outside configured temperature range."+ },+ {+ "number": "12",+ "name": "QON",+ "type": "input",+ "description": "Battery FET control input with internal pull-up; LOW for 1s duration exits shipping mode, or LOW for 15s resets system when VBUS disconnected."+ },+ {+ "number": "13",+ "name": "BAT",+ "type": "power_in",+ "description": "Battery positive terminal connection with integrated BATFET between BAT and SYS; place 10µF capacitor close to pin."+ },+ {+ "number": "14",+ "name": "BAT",+ "type": "power_in",+ "description": "Battery positive terminal connection with integrated BATFET between BAT and SYS; place 10µF capacitor close to pin."+ },+ {+ "number": "15",+ "name": "SYS",+ "type": "power_out",+ "description": "System output regulated above minimum voltage (3.0V-3.7V) by converter even with depleted battery; place 20µF capacitor close to pin."+ },+ {+ "number": "16",+ "name": "SYS",+ "type": "power_out",+ "description": "System output regulated above minimum voltage (3.0V-3.7V) by converter even with depleted battery; place 20µF capacitor close to pin."+ },+ {+ "number": "17",+ "name": "PGND",+ "type": "power_in",+ "description": "Power ground for high-current converter stages internally connected to LSFET source; connect directly to input/output capacitor grounds."+ },+ {+ "number": "18",+ "name": "PGND",+ "type": "power_in",+ "description": "Power ground for high-current converter stages internally connected to LSFET source; connect directly to input/output capacitor grounds."+ },+ {+ "number": "19",+ "name": "SW",+ "type": "output",+ "description": "PWM switching node connected to inductor output and LSFET source; place 0.047µF bootstrap capacitor from SW to BTST."+ },+ {+ "number": "20",+ "name": "SW",+ "type": "output",+ "description": "PWM switching node connected to inductor output and LSFET source; place 0.047µF bootstrap capacitor from SW to BTST."+ },+ {+ "number": "21",+ "name": "BTST",+ "type": "power_out",+ "description": "Bootstrap supply for high-side gate driver powered by internal bootstrap diode from SW node; connect 0.047µF bootstrap capacitor."+ },+ {+ "number": "22",+ "name": "REGN",+ "type": "power_out",+ "description": "Internal LDO regulated output (5.6V-6.4V) powering gate drivers and TS bias; connect 4.7µF capacitor from REGN to analog GND close to IC."+ },+ {+ "number": "23",+ "name": "PMID",+ "type": "output",+ "description": "Power management mid-point connected to RBFET drain and HSFET drain; place 1µF on VBUS-PGND and remaining input capacitance on PMID-PGND."+ },+ {+ "number": "24",+ "name": "DSEL",+ "type": "output",+ "description": "Open-drain D+/D- detection multiplexer control output pulled-HIGH externally; driven LOW during D+/D- detection and held LOW for MaxCharge adapters."+ },+ {+ "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-4-6",+ "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": 70,+ "cost_usd": 0.6576,+ "at": "2026-09-22T03:40:45"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/bq25890",+ "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]"+ }+}