# GR2103

**GR** · Gate Drivers · SOP-8

GR2103 from GR, 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 | VCC | power_in | Low-side supply voltage, recommended 10 V to 20 V (absolute max 25 V), with UVLO trip at 9.8 V max. |
| 2 | HIN | input | High-side logic input, in phase with HO, 3.3 V/5 V compatible with VIH min 2.7 V and VIL max 0.8 V. |
| 3 | LIN | input | Active-low low-side logic input (LO is inverted relative to LIN), 3.3 V/5 V compatible with VIH min 2.7 V and VIL max 0.8 V. |
| 4 | GND | power_in | Ground. |
| 5 | LO | output | Low-side gate drive output, swings 0 V to VCC. |
| 6 | VS | power_in | High-side floating supply return (offset) voltage, recommended -5 V to 600 V. |
| 7 | HO | output | High-side gate drive output, swings from VS to VB. |
| 8 | VB | power_in | High-side floating absolute supply voltage, recommended VS+10 V to VS+20 V (absolute max 625 V). |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `GR2103`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `gr2103-etched.step` / `gr2103-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `gr2103.step` / `gr2103.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [GR datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8602886339377577984) (7 pp, sha256 `abbc992641a811b6`, retrieved 2026-10-09, 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:** 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/gr2103-datasheet.pdf)