component
BCT4054DEUK-TR
Public Made by Adomby adom
BROADCHIP Battery Management ICs, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+42@@ -0,0 +1,42 @@+# BCT4054DEUK-TR++**BROADCHIP** · Battery Management ICs · SOT-23-5++BCT4054DEUK-TR from BROADCHIP, in a SOT-23-5. 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 | CHRG | tri_state | Open-drain charging status indicator internally pulled low during charging, in high-impedance state for all other conditions |+| 2 | GND | power_in | Ground connection |+| 3 | BAT | power_out | Battery charging connection pin with fixed charging termination voltage of 4.35V for BCT4054D variant |+| 4 | VCC | power_in | Power supply input pin; chip enters sleep mode when supply voltage falls within 80mV of BAT voltage with battery leakage current reduced to 2μA |+| 5 | PROG | input | Constant current setting and charging current monitoring pin; charging current set via external resistor RPROG to ground with formula IBAT = 1100 × VPROG / RPROG |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | BROADCHIP |+| Package | SOT-23-5 |+| Category | Power Supply Chip |+| Pins | 5 |++## CAD (KiCad official)++- Symbol: `BCT4054DEUK-TR`+- Footprint: `Package_TO_SOT_SMD:SOT-23-5`+- 3D model: SOT-23-5 (KiCad packages3D, STEP)+- 3D model files: `bct4054deuk-tr-etched.step` / `bct4054deuk-tr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bct4054deuk-tr.step` / `bct4054deuk-tr.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [BROADCHIP datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588946015332679680) (15 pp, sha256 `967a595ac3b5da65`, retrieved 2026-09-18, 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/bct4054deuk-tr-datasheet.pdf)
page.jsonadded+123@@ -0,0 +1,123 @@+{+ "slug": "bct4054deuk-tr",+ "version": "0.1.0",+ "type": "component",+ "description": "BROADCHIP Battery Management ICs, SOT-23-5. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power supply chip",+ "bct4054deuk-tr",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "bct4054deuk-tr.kicad_sym",+ "bct4054deuk-tr.kicad_mod",+ "bct4054deuk-tr.glb",+ "bct4054deuk-tr.step",+ "bct4054deuk-tr.lbr",+ "docs/hero.png",+ "docs/bct4054deuk-tr-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "BCT4054DEUK-TR",+ "manufacturer": "BROADCHIP",+ "package": "SOT-23-5",+ "pin_count": 5,+ "category": "Power Supply Chip",+ "subcategory": "Battery Management ICs",+ "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588946015332679680",+ "parts": {+ "symbol": "bct4054deuk-tr.kicad_sym",+ "footprint": "bct4054deuk-tr.kicad_mod",+ "model_3d": "bct4054deuk-tr-etched.glb",+ "model_3d_plain": "bct4054deuk-tr.glb",+ "model_3d_step": "bct4054deuk-tr-etched.step",+ "model_3d_step_plain": "bct4054deuk-tr.step",+ "lbr": "bct4054deuk-tr.lbr"+ },+ "distributor_links": {+ "lcsc": "C2924390"+ },+ "pins": [+ {+ "number": "1",+ "name": "CHRG",+ "type": "tri_state",+ "description": "Open-drain charging status indicator internally pulled low during charging, in high-impedance state for all other conditions"+ },+ {+ "number": "2",+ "name": "GND",+ "type": "power_in",+ "description": "Ground connection"+ },+ {+ "number": "3",+ "name": "BAT",+ "type": "power_out",+ "description": "Battery charging connection pin with fixed charging termination voltage of 4.35V for BCT4054D variant"+ },+ {+ "number": "4",+ "name": "VCC",+ "type": "power_in",+ "description": "Power supply input pin; chip enters sleep mode when supply voltage falls within 80mV of BAT voltage with battery leakage current reduced to 2μA"+ },+ {+ "number": "5",+ "name": "PROG",+ "type": "input",+ "description": "Constant current setting and charging current monitoring pin; charging current set via external resistor RPROG to ground with formula IBAT = 1100 × VPROG / RPROG"+ }+ ],+ "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": [],+ "pages_sent": 15,+ "cost_usd": 0.134,+ "at": "2026-09-18T03:54:53"+ },+ "datasheet": {+ "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588946015332679680",+ "pages": 15,+ "sha256": "967a595ac3b5da65",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 5,+ "described": 5,+ "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]"+ }+}