component
BL2556ACB5TR
Public Made by Adomby adom
BL Shanghai Belling USB Converters, SOT-23-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+45@@ -0,0 +1,45 @@+# BL2556ACB5TR++**BL Shanghai Belling** · USB Converters · SOT-23-5++BL2556ACB5TR from BL Shanghai Belling, 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 | VOUT | power_out | Switched power output; connects to USB VBUS. Internally connected to VIN through the ~70mΩ high-side power MOSFET when the switch is enabled. Has an internal pull-down to discharge the output cap when the switch is off. |+| 2 | GND | power_in | Device ground reference. |+| 3 | RSET | passive | Current-limit threshold set pin. Connect an external resistor from RSET to GND to program the overcurrent threshold: Ioc = 60kΩ / Rset (typical range 1.7-2.3 A with Rset=30 kΩ). Place resistor as close as possible to the pin. |+| 4 | EN | input | Chip enable input. On the BL2556ACB5TR (A-suffix) variant this pin is ACTIVE-HIGH: drive above VIH (min 1.6 V) to enable, below VIL (max 0.4 V) to disable. Do not leave floating. |+| 5 | VIN | power_in | Main supply input, 2.7 V to 5.5 V (abs max 6 V). Bypass with a low-ESR ceramic capacitor (e.g. 4.7 µF) placed close to the pin. UVLO ~2.2 V rising. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | BL Shanghai Belling |+| Package | SOT-23-5 |+| Category | Interface |+| Pins | 5 |++## Ordering variants++- `BL2556ACB5TRACB5TR`+- `BL2556ACB5TRCCB5TR`++## CAD (KiCad official)++- Symbol: `BL2556ACB5TR`+- Footprint: `Package_TO_SOT_SMD:SOT-23-5`+- 3D model: SOT-23-5 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [BL Shanghai Belling datasheet](docs/bl2556acb5tr-datasheet.pdf) (8 pp, sha256 `4de4fa25247ef1f7`, retrieved 2026-08-17, tier: lcsc)+- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/bl2556acb5tr-datasheet.pdf)
page.jsonadded+34@@ -0,0 +1,34 @@+{+ "slug": "bl2556acb5tr",+ "version": "0.1.0",+ "type": "component",+ "description": "BL Shanghai Belling USB Converters, SOT-23-5. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "interface",+ "bl2556acb5tr"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "bl2556acb5tr.kicad_sym",+ "bl2556acb5tr.kicad_mod",+ "bl2556acb5tr.glb",+ "bl2556acb5tr.step",+ "bl2556acb5tr.lbr",+ "docs/hero.png",+ "docs/bl2556acb5tr-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "visibility": "public",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}