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.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownL6571BD
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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);l6571bd.step/l6571bd.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (12 pp, sha256
7ffa13798fc34909, retrieved 2026-10-07, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).