# FAN3122TMX-F085

**onsemi** · Gate Drive ICs · SOIC-8

FAN3122TMX-F085 from onsemi, in a SOIC-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 | VDD | power_in | Supply voltage pin that powers the IC, with a recommended operating range of 4.5 V to 18.0 V and an absolute maximum of 20.0 V. |
| 2 | IN | input | Driver input, internally pulled to its default low level through 100k if left unconnected, with a recommended range of 0 V to VDD. |
| 3 | EN | input | Enable input that inhibits the driver when pulled LOW, internally pulled up to VDD through about 100k so it can be left open for standard operation, and has TTL-type thresholds (VENL 1.2 V min to 2.0 V max, VENH 1.8 V min to 2.6 V max). |
| 4 | GND | power_in | Common ground reference for the input and output circuits. |
| 5 | GND | power_in | Common ground reference for the input and output circuits. |
| 6 | OUT | output | Non-inverting gate drive output, held LOW unless the required input is present and VDD is above the UVLO threshold, with 9.7 A typical sink and 7.1 A typical source at mid-voltage. |
| 7 | OUT | output | Non-inverting gate drive output, held LOW unless the required input is present and VDD is above the UVLO threshold, with 9.7 A typical sink and 7.1 A typical source at mid-voltage. |
| 8 | VDD | power_in | Supply voltage pin that powers the IC, with a recommended operating range of 4.5 V to 18.0 V and an absolute maximum of 20.0 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | SOIC-8 |
| Category | Power Management ICs |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `FAN3122TMX-F085`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `fan3122tmx-f085-etched.step` / `fan3122tmx-f085-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `fan3122tmx-f085.step` / `fan3122tmx-f085.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [onsemi datasheet](https://www.onsemi.com/pdf/datasheet/fan3122tmx-f085-d.pdf) (21 pp, sha256 `267895fe5760bcbb`, retrieved 2026-10-28, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (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/fan3122tmx-f085-datasheet.pdf)