component
IR4427STR
Public Made by Adomby adom
UMW Gate Drivers, SOP-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
markdownIR4427STR
UMW · Gate Drivers · SOP-8
IR4427STR from UMW, in a SOP-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 | NC | unconnected | Listed as NC (no connection) in the SOP-8 lead definitions; the datasheet gives no function for this pin. |
| 2 | INA | input | Input to Channel A, referenced to GND; the datasheet states the inputs can handle negative voltages down to -10 V. |
| 3 | GND | power_in | Ground pin to which all signals are referenced; the datasheet states the device is not damaged by noise spikes of up to 5 V of either polarity on this pin. |
| 4 | INB | input | Input to Channel B, referenced to GND; the datasheet states the inputs can handle negative voltages down to -10 V. |
| 5 | OUTB | output | Output of Channel B, a 2 A peak gate-drive output; the datasheet states the output withstands reverse currents up to 0.5 A without damage or logic confusion. |
| 6 | VCC | power_in | Bias supply input with a single-supply range of 4.5 V to 25 V per the datasheet features. |
| 7 | OUTA | output | Output of Channel A, a 2 A peak gate-drive output; the datasheet states the output withstands reverse currents up to 0.5 A without damage or logic confusion. |
| 8 | NC | unconnected | Listed as NC (no connection) in the SOP-8 lead definitions; the datasheet gives no function for this pin. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | UMW |
| Package | SOP-8 |
| Category | Motor Driver ICs |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
IR4427STR - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
ir4427str-etched.step/ir4427str-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ir4427str.step/ir4427str.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: UMW datasheet (11 pp, sha256
365901a166f39aeb, retrieved 2026-10-09, 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).