# HX4428-P

**ZHHXDZ** · Gate Drivers · DIP-8

HX4428-P from ZHHXDZ, in a DIP-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. |
| 2 | IN A | input | Channel A logic input (TTL/CMOS compatible) with VIH min 2.4 V and VIL max 0.8 V, protected to -5V, and a threshold independent of supply voltage. |
| 3 | GND | power_in | Ground; withstands up to 5V noise spikes of either polarity. |
| 4 | IN B | input | Channel B logic input (TTL/CMOS compatible) with VIH min 2.4 V and VIL max 0.8 V, protected to -5V, and a threshold independent of supply voltage. |
| 5 | OUT B | output | Channel B driver output (shown inverting on the pin diagram) that swings within 25 mV of the supply or ground and has 4A peak output capability and latch-up protection to >500 mA reverse current. |
| 6 | VDD | power_in | Positive supply with a 4.5V to 25V operating range. |
| 7 | OUT A | output | Channel A driver output (shown inverting on the pin diagram) that swings within 25 mV of the supply or ground and has 4A peak output capability and latch-up protection to >500 mA reverse current. |
| 8 | NC | unconnected | No connection. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | ZHHXDZ |
| Package | DIP-8 |
| Category | Motor Driver ICs |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `HX4428-P`
- Footprint: `Package_DIP:DIP-8_W7.62mm`
- 3D model: DIP-8 (KiCad packages3D, STEP)
- 3D model files: `hx4428-p-etched.step` / `hx4428-p-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `hx4428-p.step` / `hx4428-p.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [ZHHXDZ datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8773982038024577024) (5 pp, sha256 `37c6c21f30163db8`, retrieved 2026-10-16, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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/hx4428-p-datasheet.pdf)