component
SI8271DB-ISR
Public Made by Adomby adom
SKYWORKS SILICON LABS Digital Isolators, SOIC-8. Datasheet-verified pinout, 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
markdownSI8271DB-ISR
SKYWORKS SILICON LABS · Digital Isolators · SOIC-8
SI8271DB-ISR from SKYWORKS SILICON LABS, in a SOIC-8. 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 | VI | input | TTL-compatible high-true digital control input that commands gate drive outputs VO+ and VO-. |
| 2 | VDDI | power_in | Input-side supply voltage; operating range 2.5-5.5 V. |
| 3 | GNDI | power_in | Input-side ground reference. |
| 4 | EN | input | Enable input that unconditionally drives VO+ and VO- low when held low, with device shutdown within 60 ns of EN = VIL. |
| 5 | GND | power_in | Driver-side ground reference. |
| 6 | VO- | output | Gate drive pull-low output with peak sink current of 4.0 A and RDS(ON) of 1.0 Ω. |
| 7 | VO+ | output | Gate drive pull-high output with peak source current of 1.8 A at 4.2 V and tPW < 250 ns, RDS(ON) of 2.7 Ω. |
| 8 | VDD | power_in | Driver-side supply voltage; operating range 4.2-30 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | SKYWORKS SILICON LABS |
| Package | SOIC-8 |
| Category | Signal Isolation Devices |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
SI8271DB-ISR - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
si8271db-isr-etched.step/si8271db-isr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);si8271db-isr.step/si8271db-isr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: SKYWORKS SILICON LABS datasheet (44 pp, sha256
19099e0a3d4bf831, retrieved 2026-09-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-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).