# IR4426STR

**UMW** · Gate Drivers · SOP-8

IR4426STR 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 | No connection; this pin is not connected internally. |
| 2 | INA | input | Input to Channel A, with VIN rated from -12 V to 25 V, VIH minimum 2.4 V and VIL maximum 0.8 V. |
| 3 | GND | power_in | Ground pin to which all signals are referenced; the device tolerates noise spikes of up to 5 V of either polarity on this pin without damage. |
| 4 | INB | input | Input to Channel B, with VIN rated from -12 V to 25 V, VIH minimum 2.4 V and VIL maximum 0.8 V. |
| 5 | OUTB | output | Output of Channel B, with 2 A peak source current and the ability to withstand reverse currents up to 0.5 A without latch-up. |
| 6 | VCC | power_in | Bias supply input with a 4.5 V to 20 V operating range and a 25 V absolute maximum rating. |
| 7 | OUTA | output | Output of Channel A, with 2 A peak source current and the ability to withstand reverse currents up to 0.5 A without latch-up. |
| 8 | NC | unconnected | No connection; this pin is not connected internally. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | UMW |
| Package | SOP-8 |
| Category | Motor Driver ICs |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `IR4426STR`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `ir4426str-etched.step` / `ir4426str-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ir4426str.step` / `ir4426str.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [UMW datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590921132205813761) (7 pp, sha256 `a4737693f8d0cfcd`, retrieved 2026-10-09, 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/ir4426str-datasheet.pdf)