component
BQ25504RGTT
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Texas Instruments Battery Management, VQFN-16-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+54@@ -0,0 +1,54 @@+# BQ25504RGTT++**Texas Instruments** · Battery Management · VQFN-16-EP(3x3)++BQ25504RGTT from Texas Instruments, in a VQFN-16-EP(3x3). 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 | VSS | power_in | General ground connection for the device with connection to thermal pad. |+| 2 | VIN_DC | power_in | DC voltage input from energy harvesters (minimum 130 mV to 3 V) requiring minimum 4.7 µF input capacitor to pin 1. |+| 3 | VOC_SAMP | input | MPPT sampling pin connected to resistor divider mid-point between VIN_DC and GND for setting MPP threshold, or connect to VSTOR to disable MPPT. |+| 4 | VREF_SAMP | input | Reference voltage storage pin with 0.01 µF low leakage capacitor to GND, or tied to GND to disable input voltage regulation from low impedance sources. |+| 5 | OT_PROG | input | Overtemperature threshold programming input: connect to GND for 60°C limit or to VSTOR for 120°C limit. |+| 6 | VBAT_OV | input | Overvoltage threshold programming input at mid-point of resistor divider between VRDIV and GND. |+| 7 | VRDIV | output | Resistor divider biasing voltage output. |+| 8 | VBAT_UV | input | Undervoltage threshold programming input at mid-point of resistor divider between VRDIV and GND opening PFET between VBAT and VSTOR when voltage falls below threshold. |+| 9 | OK_HYST | input | VBAT_OK hysteresis threshold programming input at resistor divider mid-point between VRDIV and GND, or connect to GND if not used. |+| 10 | OK_PROG | input | VBAT_OK threshold programming input at resistor divider mid-point between VRDIV and GND, or connect to GND if not used. |+| 11 | VBAT_OK | output | Digital battery good indicator output internally referenced to VSTOR voltage; leave floating if not used. |+| 12 | AVSS | power_in | Analog supply ground connection for the device with connection to thermal pad. |+| 13 | VSS | power_in | General ground connection for the device with connection to thermal pad. |+| 14 | VBAT | power_in | Rechargeable battery or storage element connection requiring minimum 100 µF equivalent capacitance. |+| 15 | VSTOR | power_out | Boost charger output for system load requiring minimum 4.7 µF bulk capacitor plus 0.1 µF bypass capacitor between this pin and VSS (pin 1). |+| 16 | LBST | passive | Inductor node for boost charger switching network with 22 µH inductor connected between this pin and pin 2 (VIN_DC). |+| 17 | PAD | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | VQFN-16-EP(3x3) |+| Category | Power Management (PMIC) |+| Pins | 17 |++## CAD (KiCad official)++- Symbol: `BQ25504RGTT`+- Footprint: `Package_DFN_QFN:QFN-16-1EP_3x3mm_P0.5mm_EP1.7x1.7mm`+- 3D model: VQFN-16-EP(3x3) (KiCad packages3D, STEP)+- 3D model files: `bq25504rgtt-etched.step` / `bq25504rgtt-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bq25504rgtt.step` / `bq25504rgtt.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/bq25504) (39 pp, sha256 `51260957717f99e0`, retrieved 2026-09-27, 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/bq25504rgtt-datasheet.pdf)
page.jsonadded+213@@ -0,0 +1,213 @@+{+ "slug": "bq25504rgtt",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Battery Management, VQFN-16-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power management (pmic)",+ "bq25504rgtt",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "bq25504rgtt.kicad_sym",+ "bq25504rgtt.kicad_mod",+ "bq25504rgtt.glb",+ "bq25504rgtt.step",+ "bq25504rgtt.lbr",+ "docs/hero.png",+ "docs/bq25504rgtt-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "BQ25504RGTT",+ "manufacturer": "Texas Instruments",+ "package": "VQFN-16-EP(3x3)",+ "pin_count": 17,+ "category": "Power Management (PMIC)",+ "subcategory": "Battery Management",+ "datasheet": "https://www.ti.com/cn/lit/gpn/bq25504",+ "parts": {+ "symbol": "bq25504rgtt.kicad_sym",+ "footprint": "bq25504rgtt.kicad_mod",+ "model_3d": "bq25504rgtt-etched.glb",+ "model_3d_plain": "bq25504rgtt.glb",+ "model_3d_step": "bq25504rgtt-etched.step",+ "model_3d_step_plain": "bq25504rgtt.step",+ "lbr": "bq25504rgtt.lbr"+ },+ "distributor_links": {+ "lcsc": "C157471",+ "digikey": "296-29741-2-ND",+ "mouser": "595-BQ25504RGTT"+ },+ "distributor_check": {+ "checked_at": "2026-09-27T00:29:54Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-29741-2-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "595-BQ25504RGTT",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "VSS",+ "type": "power_in",+ "description": "General ground connection for the device with connection to thermal pad."+ },+ {+ "number": "2",+ "name": "VIN_DC",+ "type": "power_in",+ "description": "DC voltage input from energy harvesters (minimum 130 mV to 3 V) requiring minimum 4.7 µF input capacitor to pin 1."+ },+ {+ "number": "3",+ "name": "VOC_SAMP",+ "type": "input",+ "description": "MPPT sampling pin connected to resistor divider mid-point between VIN_DC and GND for setting MPP threshold, or connect to VSTOR to disable MPPT."+ },+ {+ "number": "4",+ "name": "VREF_SAMP",+ "type": "input",+ "description": "Reference voltage storage pin with 0.01 µF low leakage capacitor to GND, or tied to GND to disable input voltage regulation from low impedance sources."+ },+ {+ "number": "5",+ "name": "OT_PROG",+ "type": "input",+ "description": "Overtemperature threshold programming input: connect to GND for 60°C limit or to VSTOR for 120°C limit."+ },+ {+ "number": "6",+ "name": "VBAT_OV",+ "type": "input",+ "description": "Overvoltage threshold programming input at mid-point of resistor divider between VRDIV and GND."+ },+ {+ "number": "7",+ "name": "VRDIV",+ "type": "output",+ "description": "Resistor divider biasing voltage output."+ },+ {+ "number": "8",+ "name": "VBAT_UV",+ "type": "input",+ "description": "Undervoltage threshold programming input at mid-point of resistor divider between VRDIV and GND opening PFET between VBAT and VSTOR when voltage falls below threshold."+ },+ {+ "number": "9",+ "name": "OK_HYST",+ "type": "input",+ "description": "VBAT_OK hysteresis threshold programming input at resistor divider mid-point between VRDIV and GND, or connect to GND if not used."+ },+ {+ "number": "10",+ "name": "OK_PROG",+ "type": "input",+ "description": "VBAT_OK threshold programming input at resistor divider mid-point between VRDIV and GND, or connect to GND if not used."+ },+ {+ "number": "11",+ "name": "VBAT_OK",+ "type": "output",+ "description": "Digital battery good indicator output internally referenced to VSTOR voltage; leave floating if not used."+ },+ {+ "number": "12",+ "name": "AVSS",+ "type": "power_in",+ "description": "Analog supply ground connection for the device with connection to thermal pad."+ },+ {+ "number": "13",+ "name": "VSS",+ "type": "power_in",+ "description": "General ground connection for the device with connection to thermal pad."+ },+ {+ "number": "14",+ "name": "VBAT",+ "type": "power_in",+ "description": "Rechargeable battery or storage element connection requiring minimum 100 µF equivalent capacitance."+ },+ {+ "number": "15",+ "name": "VSTOR",+ "type": "power_out",+ "description": "Boost charger output for system load requiring minimum 4.7 µF bulk capacitor plus 0.1 µF bypass capacitor between this pin and VSS (pin 1)."+ },+ {+ "number": "16",+ "name": "LBST",+ "type": "passive",+ "description": "Inductor node for boost charger switching network with 22 µH inductor connected between this pin and pin 2 (VIN_DC)."+ },+ {+ "number": "17",+ "name": "PAD",+ "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": [+ "extractor flagged: All 16 pins identified and documented from Pin Configuration (Figure 6-1) and Pin Functions Table (T",+ "exposed pad 17 added from the footprint"+ ],+ "pages_sent": 39,+ "cost_usd": 0.4117,+ "at": "2026-09-27T00:29:38"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/bq25504",+ "pages": 39,+ "sha256": "51260957717f99e0",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 17,+ "described": 17,+ "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]"+ }+}