component
L6571BD
Public Made by Adomby adom
STMicroelectronics Gate Drivers, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+44@@ -0,0 +1,44 @@+# L6571BD++**STMicroelectronics** · Gate Drivers · SOIC-8++L6571BD from STMicroelectronics, in a SOIC-8. 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 | VS | power_in | Supply input with an internal zener clamp of 15.6 V typical (14.6 V to 16.6 V at IS = 5 mA), recommended VS range 10 V to VCL, and the circuit should not be driven from a DC low-impedance source. |+| 2 | RF | output | Oscillator timing resistor pin, driven by a buffer that alternates between VS and GND to supply current to the external resistor RF between pins 2 and 3, and it can also drive another L6569/71 IC. |+| 3 | CF | bidirectional | Oscillator timing capacitor pin that sets the oscillation frequency together with RF, and that can alternatively receive an external logic signal to drive the IC. |+| 4 | GND | power_in | Ground reference for the device; the internal zener clamp is connected between GND and VS. |+| 5 | LVG | output | Low side driver output that delivers 170 mA source and 270 mA sink (typical values). |+| 6 | OUT | power_in | Upper driver floating reference (high side switch source output), with an absolute maximum range of -1 V to VBOOT - 18 V and a leakage of 5 µA maximum at VOUT = 562 V. |+| 7 | HVG | output | High side driver output that delivers 170 mA source and 270 mA sink (typical values). |+| 8 | BOOT | power_in | Bootstrap floating upper driver supply, with a recommended maximum of 500 V and an absolute maximum of 618 V; ESD immunity on pins 6, 7 and 8 is 900 V (HBM). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | SOIC-8 |+| Category | Motor Driver ICs |+| Pins | 8 |++## CAD (KiCad official)++- Symbol: `L6571BD`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOIC-8 (KiCad packages3D, STEP)+- 3D model files: `l6571bd-etched.step` / `l6571bd-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `l6571bd.step` / `l6571bd.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [STMicroelectronics datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589035259556212736) (12 pp, sha256 `7ffa13798fc34909`, retrieved 2026-10-07, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (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/l6571bd-datasheet.pdf)
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Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "motor driver ics",+ "l6571bd",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "l6571bd.kicad_sym",+ "l6571bd.kicad_mod",+ "l6571bd.glb",+ "l6571bd.step",+ "l6571bd.lbr",+ "docs/hero.png",+ "docs/l6571bd-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "l6571bd-hero.glb",+ "l6571bd-hero.overlay.json"+ ],+ "component": {+ "mpn": "L6571BD",+ "manufacturer": "STMicroelectronics",+ "package": "SOIC-8",+ "pin_count": 8,+ "category": "Motor Driver ICs",+ "subcategory": "Gate Drivers",+ "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589035259556212736",+ "parts": {+ "symbol": "l6571bd.kicad_sym",+ "footprint": "l6571bd.kicad_mod",+ "model_3d": "l6571bd-hero.glb",+ "model_3d_plain": "l6571bd.glb",+ "model_3d_step": "l6571bd-etched.step",+ "model_3d_step_plain": "l6571bd.step",+ "lbr": "l6571bd.lbr"+ },+ "distributor_links": {+ "lcsc": "C1549378",+ "digikey": "497-18629-ND",+ "mouser": "511-L6571BD"+ },+ "distributor_check": {+ "checked_at": "2026-10-07T23:25:07Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "497-18629-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "511-L6571BD",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "VS",+ "type": "power_in",+ "description": "Supply input with an internal zener clamp of 15.6 V typical (14.6 V to 16.6 V at IS = 5 mA), recommended VS range 10 V to VCL, and the circuit should not be driven from a DC low-impedance source."+ },+ {+ "number": "2",+ "name": "RF",+ "type": "output",+ "description": "Oscillator timing resistor pin, driven by a buffer that alternates between VS and GND to supply current to the external resistor RF between pins 2 and 3, and it can also drive another L6569/71 IC."+ },+ {+ "number": "3",+ "name": "CF",+ "type": "bidirectional",+ "description": "Oscillator timing capacitor pin that sets the oscillation frequency together with RF, and that can alternatively receive an external logic signal to drive the IC."+ },+ {+ "number": "4",+ "name": "GND",+ "type": "power_in",+ "description": "Ground reference for the device; the internal zener clamp is connected between GND and VS."+ },+ {+ "number": "5",+ "name": "LVG",+ "type": "output",+ "description": "Low side driver output that delivers 170 mA source and 270 mA sink (typical values)."+ },+ {+ "number": "6",+ "name": "OUT",+ "type": "power_in",+ "description": "Upper driver floating reference (high side switch source output), with an absolute maximum range of -1 V to VBOOT - 18 V and a leakage of 5 µA maximum at VOUT = 562 V."+ },+ {+ "number": "7",+ "name": "HVG",+ "type": "output",+ "description": "High side driver output that delivers 170 mA source and 270 mA sink (typical values)."+ },+ {+ "number": "8",+ "name": "BOOT",+ "type": "power_in",+ "description": "Bootstrap floating upper driver supply, with a recommended maximum of 500 V and an absolute maximum of 618 V; ESD immunity on pins 6, 7 and 8 is 900 V (HBM)."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.3",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.3",+ "primary_model": "claude-haiku-5-5",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "extractor flagged: The datasheet covers both L6571A and L6571B and gives the SO8 ordering codes L6571AD and L6571BD (ta; Pin numbers and names are taken from Table 4 (Pin description), since the pin drawing in Figure 2 is; Pin types are inferred from the functional descriptions: RF is an output buffer, CF can be both a ti"+ ],+ "pages_sent": 12,+ "cost_usd": 0.0473,+ "at": "2026-10-07T23:24:50"+ },+ "datasheet": {+ "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589035259556212736",+ "pages": 12,+ "sha256": "7ffa13798fc34909",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 8,+ "described": 8,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ },+ "models_3d": [+ {+ "file": "l6571bd.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6,+ 4.9,+ 1.75+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",+ "checked": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "l6571bd-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6,+ 4.9,+ 1.75+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "0b2e8c814a2bbaa18994bb2cf2bb6077d7f613be8f9d0c604b0215fc74c5ebad",+ "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]"+ }+}