component
IRS2181STR
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
markdownIRS2181STR
UMW · Gate Drivers · SOP-8
IRS2181STR 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 | HIN | input | Logic input for the high-side gate driver output HO, in phase; compatible with 3.3V, 5V and 15V input logic. |
| 2 | LIN | input | Logic input for the low-side gate driver output LO, in phase; compatible with 3.3V, 5V and 15V input logic. |
| 3 | COM | power_in | Low-side return (ground reference for the logic inputs and LO output); all voltage ratings are referenced to VSS. |
| 4 | LO | output | Low-side gate drive output; absolute maximum VLO is -0.3 V to VCC+0.3 V. |
| 5 | VCC | power_in | Low-side and logic fixed supply; recommended operating range is 10 V to 20 V. |
| 6 | VS | power_in | High-side floating supply return; recommended range is -9 V to 700 V, and absolute maximum is VB-25 V to 725 V. |
| 7 | HO | output | High-side gate drive output; absolute maximum VHO is VS-0.3 V to VB+0.3 V. |
| 8 | VB | power_in | High-side floating supply, referenced to VS; recommended range is VS+10 V to VS+20 V, and absolute maximum is 25 V above VS. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | UMW |
| Package | SOP-8 |
| Category | Motor Driver ICs |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
IRS2181STR - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
irs2181str-etched.step/irs2181str-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);irs2181str.step/irs2181str.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: UMW datasheet (11 pp, sha256
c05329090b229b2b, 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).