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Generated by kicad-footprint-generator · KiCad file format 20260206

Name	Last commit message	Last updated
docs	ir4428strpbf-jsm: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray	4d ago
viewers	ir4428strpbf-jsm: viewers · Ray	1mo ago
ir4428strpbf-jsm-etched.fit.json	ir4428strpbf-jsm: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray	4d ago
ir4428strpbf-jsm-etched.glb	ir4428strpbf-jsm: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray	4d ago
ir4428strpbf-jsm-etched.step	ir4428strpbf-jsm: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray	4d ago
ir4428strpbf-jsm.glb	Publish 0.1.0 · Ray	1mo ago
ir4428strpbf-jsm.kicad_mod	Publish 0.1.0 · Ray	1mo ago
ir4428strpbf-jsm.kicad_sym	Publish 0.1.0 · Ray	1mo ago
ir4428strpbf-jsm.lbr	Publish 0.1.0 · Ray	1mo ago
ir4428strpbf-jsm.step	Publish 0.1.0 · Ray	1mo ago
package.json	Publish 0.2.0 · Ray	1mo ago
page.json	Brief states the pinout check that actually ran (was an unconditional "Datasheet-verified pinout") · Ray	12d ago
README.md	ir4428strpbf-jsm: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray	18d ago

IR4428STRPBF-JSM

JSMSEMI · Isolators - Gate Drivers · SOP-8

IR4428STRPBF-JSM from JSMSEMI, in a SOP-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	NC	unconnected	No connection. Leave floating or tie to ground.
2	INA	input	Logic input for channel A (non-inverting). CMOS/TTL compatible input threshold; drives output OUTA.
3	INB	input	Logic input for channel B (non-inverting). CMOS/TTL compatible input threshold; drives output OUTB.
4	GND	power_in	Device ground return for logic and output stage.
5	OUTB	output	Gate driver output B. Sources up to 1.5A and sinks up to 2.3A peak; drives MOSFET gate. Non-inverting with respect to INB.
6	VCC	power_in	Supply voltage input. Operating range 6V to 20V; bypass with a low-ESR ceramic capacitor placed close to the pin.
7	OUTA	output	Gate driver output A. Sources up to 1.5A and sinks up to 2.3A peak; drives MOSFET gate. Non-inverting with respect to INA.
8	NC	unconnected	No connection. Leave floating or tie to ground.

Key specifications

Parameter	Value
Manufacturer	JSMSEMI
Package	SOP-8
Category	PMIC
Pins	8

Ordering variants

Same part, different packaging or reel option.

IR4428STRPBF-JSM

CAD (KiCad official)

Symbol: IR4428STRPBF-JSM
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOP-8 (KiCad packages3D, STEP)
3D model files: ir4428strpbf-jsm-etched.step / ir4428strpbf-jsm-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ir4428strpbf-jsm.step / ir4428strpbf-jsm.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`ir4428strpbf-jsm.step`	122 KB	You want the bare part, or you mark your own boards.
`ir4428strpbf-jsm-etched.step`	3.0 MB	You want the part with `IR4428STRPBF-JSM` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 758 faces against 147 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

Datasheet: JSMSEMI datasheet (9 pp, sha256 a59758b68c128f47, retrieved 2026-08-17, tier: lcsc)
Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF