component
IR4428STR
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
markdownIR4428STR
UMW · Gate Drivers · SOP-8
IR4428STR 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 | Not connected; the datasheet gives no function or limit for this pin. |
| 2 | INA | input | Input to Channel A; the datasheet states the inputs can handle negative voltages down to -10 V. |
| 3 | GND | power_in | Ground: all signals are referenced to this pin, and the device is not damaged by noise spikes of up to 5 V of either polarity on it. |
| 4 | INB | input | Input to Channel B; the datasheet states the inputs can handle negative voltages down to -10 V. |
| 5 | OUTB | output | Output of Channel B; rated for 2 A peak output current and withstands reverse output current up to 0.5 A without latching. |
| 6 | VCC | power_in | Bias supply input; the recommended supply range is 4.5 V to 20 V, with an absolute maximum of 25 V. |
| 7 | OUTA | output | Output of Channel A; rated for 2 A peak output current and withstands reverse output current up to 0.5 A without latching. |
| 8 | NC | unconnected | Not connected; the datasheet gives no function or limit for this pin. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | UMW |
| Package | SOP-8 |
| Category | Motor Driver ICs |
| Pins | 8 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply voltage range (absolute maximum) | VCC | 25 | V | 4 | |||
| INA, INB voltage (absolute maximum) | VIN | -12 | 25 | V | 4 | ||
| SOIC package power (TA ≤70°C) | PD2 | 470 | mW | TA ≤70°C | 4 | ||
| Operating junction temperature | TJ | 150 | °C | 4 | |||
| Storage temperature | TS | -45 | 150 | °C | 4 | ||
| Human body model (HBM) ESD | 2000 | V | 4 | ||||
| Charged device model (CDM) ESD | 500 | V | 4 | ||||
| Supply voltage range (recommended) | VCC | 4.5 | 20 | V | 5 | ||
| Ambient temperature (recommended) | TC | -40 | 125 | °C | 5 | ||
| Input signal high threshold | VIH | 2.4 | V | 6 | |||
| Input signal low threshold | VIL | 0.8 | V | 6 | |||
| Low output voltage | VOL | 0.025 | V | 6 |
CAD (KiCad official)
- Symbol:
IR4428STR - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
ir4428str-etched.step/ir4428str-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ir4428str.step/ir4428str.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: UMW datasheet (12 pp, sha256
f612a688ad730f5a, retrieved 2026-10-17, 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).