# U3115S-JSM

**JSMSEMI** · Gate Drivers · SOP-8

U3115S-JSM 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 6 V to 20 V, absolute maximum 25 V. |
| 2 | HIN | input | High-side logic signal input, compatible with 3.3 V, 5 V and 15 V logic; range -0.3 V to VCC + 0.3 V. |
| 3 | LIN | input | Low-side logic signal input (active-low, shown with overbar), compatible with 3.3 V, 5 V and 15 V logic; range -0.3 V to VCC + 0.3 V. |
| 4 | VSS | power_in | Ground reference for the logic and low-side supply; all voltage ratings are referenced to VSS. |
| 5 | LO | output | Low-side gate drive output, swings 0 V to VCC, with 1.2 A source / 1.5 A sink capability. |
| 6 | VS | power_in | High-side floating ground (offset); recommended -9 V to 250 V, with dVs/dt immunity up to 50 V/ns. |
| 7 | HO | output | High-side gate drive output, swings from VS to VB, with 1.2 A source / 1.5 A sink capability. |
| 8 | VB | power_in | High-side floating supply voltage; recommended VS + 5 V to VS + 20 V, absolute maximum 275 V. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `U3115S-JSM`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `u3115s-jsm-etched.step` / `u3115s-jsm-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `u3115s-jsm.step` / `u3115s-jsm.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [JSMSEMI datasheet](docs/u3115s-jsm-datasheet.pdf) (13 pp, sha256 `c09b19f3db7e193b`, retrieved 2026-10-16, 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` (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/u3115s-jsm-datasheet.pdf)