# SDH2103U

**JSMSEMI** · Gate Drivers · SOP-8

SDH2103U from JSMSEMI, 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) referenced to VSS. |
| 2 | HIN | input | High-side logic signal input, 0 V to VCC, compatible with 3.3 V, 5 V and 15 V logic. |
| 3 | LIN | input | Low-side logic signal input (active-low, shown with overbar), 0 V to VCC. |
| 4 | VSS | power_in | Ground; all voltage ratings are referenced to VSS. |
| 5 | LO | output | Low-side gate drive output, 0 V to VCC, with 300 mA source / 600 mA sink capability. |
| 6 | VS | power_in | High-side floating ground, recommended -9 V to 700 V. |
| 7 | HO | output | High-side gate drive output, swinging from VS to VB. |
| 8 | VB | power_in | High-side floating supply, recommended VS+10 V to VS+20 V (absolute max 725 V). |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `SDH2103U`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `sdh2103u-etched.step` / `sdh2103u-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sdh2103u.step` / `sdh2103u.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [JSMSEMI datasheet](docs/sdh2103u-datasheet.pdf) (11 pp, sha256 `a150fb71ea46c948`, retrieved 2026-10-18, tier: lcsc)
- **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/sdh2103u-datasheet.pdf)